Sonance Sonamp 875D MKII User manual

SONAMP®875D MKII
8-CHANNEL HIGH-EFFICIENCY
POWER AMPLIFIER
INSTRUCTION MANUAL

2
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
Important Safety Information
IMPORTANT: READ ALL OF THESE INSTRUCTIONS BEFORE YOU
INSTALL OR OPERATE YOUR 875D MKII, AND SAVE THESE
INSTRUCTIONS FOR LATER USE.
1. Read Instructions — All these safety and operating
instructions should be read before you operate the unit.
2. Retain Instructions — These safety and operating
instructions should be retained for future reference.
3. Heed Warnings — All warnings on the unit and in the
operating instructions should be adhered to.
4. Follow Instructions — All operating and use instruc-
tions should be followed.
5. Water and Moisture — The unit should not be used
near water — for example, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near a
swimming pool, and the like.
6. Carts and Stands — The unit should be used only with
a cart or stand that is recommended by
the manufacturer. A unit and cart
combination should be moved with care.
Quick stops, excessive force, and uneven
surfaces may cause the unit and cart com-
bination to overturn.
7. CAUTION: TO PREVENT ELECTRIC SHOCK, DO NOT USE
THE AMPLIFIER’S POLARIZED PLUG WITH AN EXTENSION
CORD, RECEPTACLE, OR OTHER OUTLETS UNLESS THE BLADES
CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
8. Ventilation — The unit should be situated so that its
location or position does not interfere with its proper
ventilation. For example, the unit should not be situated
on a bed, sofa, rug, or similar surface that may block
the ventilation openings; or be placed in a built-in
installation, such as a bookcase or cabinet, that may
impede the flow of air through the ventilation openings.
9. Heat — The unit should be situated away from heat
sources such as radiators, heat registers, stoves, or other
appliances (including other audio components) that
produce heat.
10. Power Sources — The unit should be connected to a
power supply only of the type described in the operating
instructions or as marked on the unit.
11. Grounding or Polarization — Precautions should be
taken so that the grounding or polarization means of the
unit is not defeated.
12. Power Cord Protection — Power supply cords should
be routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying
particular attention to cords at plugs, convenience recep-
tacles, and the point where they exit from the controller.
13. Cleaning — The unit should be cleaned only as
recommended by the manufacturer.
14. Non-Use Periods — The power cord of the unit should
be unplugged from the outlet when left unused for a long
period of time.
15. Object and Liquid Entry — Care should be taken so
that objects do not fall and liquids are not spilled into the
enclosure through openings.
16. Damage Requiring Service — The unit should be
serviced by qualified service personnel when:
• The power-supply cord or the plug has been damaged.
• Objects have fallen or liquid has been spilled into the
unit.
• The unit has been exposed to rain.
• The unit does not appear to operate normally or
exhibits a marked change in performance.
• The unit has been dropped or the enclosure damaged.
17. Servicing — The user should not attempt to service the
unit beyond that described in the operating instructions.
All other servicing should be referred to qualified service
personnel.

3
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
L
R
A
A.C. ON
AUTO ON
LRLRLRLR
1 – 2 3 – 4 5 – 6 7 – 8
PROTECTION
BBE ON
ACTIVE
ACTIVEPOWER
BBE CONTROL
BUS
INPUT
OUTPUT
BUFFERED
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
BBE CONTROL
INPUTS 5 – 24V AC–DC
EXTERNAL TRIGGER
INPUTS 5 – 24V AC–DC
TRIGGER OUTPUTS
12VDC
OFF LOW OFF LOW OFF LOW OFF LOW
ON HIGH ON HIGH ON HIGH ON HIGH
1/2 3/4 5/6 7/8
+ 1 – – 2 + + 3 – – 4 + + 5 – – 6 + + 7 – – 8 +
CH
CH1 CH2
NORMAL BRIDGED NORMAL BRIDGED
ALL CH
CH
RS-232
1/2 3/4 5/6 7/8
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
ALL
S/N
1/2 3/4 5/6 7/8
+ – + – + – + – + –
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
NORMAL BRIDGED NORMAL BRIDGED
+ – + – + – + –
(BRIDGED)
CH3 CH4
(BRIDGED)
CH5 CH6
(BRIDGED)
CH7 CH8
(BRIDGED)
CAUTION: REPLACE WITH THE
SAME TYPE AND RATING FUSE
120V–60Hz 1200W
–FUSE T10AL 250V
RS-232
RS-232
RS-232
RS-232
SONAMP
®
875D MKII
12 4 3
1. Power Button
2. Active LED
3. AC On LED
7. Aux Input & Buffered Output
8. Left & Right Bus Inputs
9. Left & Right Buffered Outputs
10. BBE External Control Input Connections
(Zones 1 – 4)
11. BBE Control Setting DIP Switches
(Zones 1 – 4)
12. Speaker Connectors (Zones 1 – 4)
13. Bridging Switches (Zones 1 – 4)
14. Direct Input Connections (Ch. 1 – 8)
15. Input Assignment DIP Switches (Ch. 1 – 8)
16. External Control Input Connections
(Zones 1 – 4 & ALL)
17. 12V Trigger Outputs (Zones 1 – 4 & ALL)
18. RS-232 Input
19. AC Fuse Holder
20. Power Cord Connection
21. Trigger Mode Switches (Zones 1 – 4)
4. Input Level Adjustments (Ch 1 – 8)
5. Auto-On Sensitivity Adjustments (Zones 1 – 4)
6. Protection, BBE On & Status Indicators (Zones 1 –4)
910
14
7 19 20
5 6
15 15 15 1514 14 14 2116
138
11
12 12 13 13 13 12 1712 18
FIGURE 1: 875D MKII FRONT AND REAR PANELS

4
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
Introduction
Thank you for purchasing the Sonance Sonamp®875D MKII
high-efficiency power amplifier. The 875D MKII will provide
you with many years of home entertainment enjoyment.
This manual will teach you all about your new amplifier’s
many innovative features and will show you how to get the
very best performance from your amplifier. Please read it
thoroughly.
To achieve the best performance, Sonance recommends that
this amplifier be installed by a Sonance Authorized
Dealer/Installer.
Design and Features
Power
The 875D MKII utilizes four highly-efficient Bang & Olufsen
ICEpower®digital amplifiers that provide 65 watts RMS per
channel @ 8 ohms x 8 Channels. The ICEpower’s high
efficiency produces eight channels of high power in a 2U high
package with very little heat generation. This expands
installation options, improves long-term reliability, provides
significant energy savings over conventional amplifier
designs, and helps reduce the system’s carbon footprint.
BBE®Sound Enhancement
The Sonamp 875D MKII incorporates BBE sound enhance-
ment. The BBE process improves the presence and detail
of speakers, especially at lower listening volumes. This
improves the sound quality of your music, especially
distributed audio systems playing background music. BBE
also restores clarity and definition (or focus) to spoken
voices, which makes paging systems easier to understand
without having to run them at high volumes. Each zone in the
875D MKII has individual controls that let you set the
BBE enhancement for that zone to +6dB, +3dB or OFF.
The factory default setting is +3dB.
Inputs and Triggers
Multiple audio input connections (Direct, L/R & Aux) and
buffered line outputs make your 875D MKII extremely
flexible, so you can connect the amplifier in a variety of ways
depending on your particular system’s configuration.
The Illustrations on pages 12 – 17 show the 875D MKII being
used in several different possible system configurations. Each
zone has its own 12V input and output triggers and
defeatable auto-on signal sensing that can automatically turn
the amplifier ON. Recessed front-panel controls are tamper-
resistant and let you adjust each channel’s input level and
each zone’s auto-on sensitivity. Front-panel LEDs tell you if
the 875D MKII’s power is on or off, if each Zone is on or off,
and the BBE status and fault status for each zone.
Serial Control Capability
The 875D MKII’s RS-232 input lets you use a variety of third-
party serial control systems to control the amplifier.
The serial control provision lets you control almost all of
the 875D MKII’s functions, and it also lets you monitor the
amplifier’s operation from a remote location.
Box Contents
Your Sonamp 875D MKII box should contain the following
items:
(1) Sonamp 875D MKII amplifier
(2) Rack ears (1 left and 1 right)
(4) Insulated rack screws
(6) Removable control connectors — connected to the
amplifier’s rear panel
(4) Removable speaker toggle connectors — connected to the
amplifier’s rear panel
(4) 12-Gauge screw connectors
(1) IEC Power cable (120V version only)
Unpacking
Save the shipping carton and polystyrene inserts so you can
safely transport your amplifier in the future. Before you install
the amplifier, locate the serial number on the rear panel and
note it here for future reference:
S/N:
Placement
IMPORTANT: TO AVOID DAMAGE, THE AMPLIFIER MUST ALWAYS
REST ON ITS FOUR FEET TO ALLOW SUFFICIENT CLEARANCE FOR PROPER
VENTILATION THROUGH THE VENTS ON THE CHASSIS BOTTOM.
Place the Sonamp 875D MKII on a level surface, in an upright
position, out of direct sunlight and away from
windows through which rain or moisture may enter.
Situate the amplifier away from heat sources such as hot air
ducts or radiators. Be sure that the amplifier is adequately
ventilated by convection cooling or suitable cabinet fans.
FIGURE 2: SONAMP®875D MKII

5
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
IMPORTANT: THE 875D MKII REQUIRES FOUR INCHES OF
CLEARANCE ON THE TOP AND ALL SIDES.
• Never place any object on or against the amplifier.
• Never operate the amplifier on a carpeted surface as this
will compromise ventilation.
• When the amplifier is installed in any cabinet, the front or
back must be open during operation. Alternately, install
fans in the cabinet to ensure continuous ventilation.
• When rack-mounting, use nylon washers on both sides of
the ears to isolate the amplifier from the rack and prevent
ground loops and hum problems.
• Very sensitive low-level sources might pick up some hum
radiated from the 875D MKII’s power supply. If this occurs,
move the unit away from the other components.
Protection Circuits
Thermal Protection
If the amplifier’s cooling vents are blocked, or it is installed
with inadequate ventilation, the amplifier may exceed its safe
operating temperature. If the amplifier’s internal temperature
exceeds 154°F (68°C) it will self-protect, and the following
will occur:
• The audio output to all
connected zones will
shut OFF.
• The front-panel
PROTECTION LEDs (see
Figure 3) will
illuminate yellow.
• An over-temp message will be sent via RS-232.
Once a safe temperature (<67°C) is reached, the protection
LEDs will all extinguish. You can then re-activate the amplifier,
either by switching the front-panel Power button OFF and
ON or by a ‘Power’ command if the amplifier is being serial
controlled.
IMPORTANT: BEFORE RE-ACTIVATING THE AMPLIFIER, CORRECT
THE PROBLEM THAT CAUSED THE OVER-TEMPERATURE CONDITION
(VOLUME SET TOO HIGH, INADEQUATE VENTILATION, ETC.)
NOTE: IF YOU’RE SERIAL-CONTROLLING THE 875D MKII YOU
CAN POLL THE AMPLIFIER AT ANY TIME TO REPORT ITS INTERNAL
TEMPERATURE TO THE CONTROL DEVICE.
Over-Current Protection
If an over-current condition occurs in a zone, that zone will
shut OFF for 5 seconds and its Protection LEDs will turn ON.
The zone will then turn back ON. If the over-current condition
continues, the zone will shut OFF for 6 seconds and its
Protection LEDs will turn back ON. If the over-current
condition continues, this process will repeat, with the wait
time increasing by 1 second each time. When the wait time
reaches 10 seconds, the zone will LOCK, the zone’s
Protection LEDs will continually illuminate, and the amplifier
must be powered OFF using the front-panel Power button (or
a serial command, if the amp is being controlled via RS-232).
Before turning the amplifier ON again, correct
whatever is causing the over-current condition in
the zone (speaker impedance too low, volume too
high, short-circuit, etc.).
Powering the Amplifier
Power Cord Connector
The Sonamp 875D MKII
features a removable IEC
power cord. (A power cord is
included with the 120V
version of the amplifier.) Plug
the female end of the power
cord into the Power Cord
Connector on the amplifier’s
rear panel (see Figure 4),
and plug the male end into a
20-amp grounded wall outlet. DO NOT plug the power
cord into an AC outlet on your preamplifier/receiver.
CAUTION: TO PREVENT ELECTRIC SHOCK, DO NOT DEFEAT THE
GROUND PRONG OF THE POWER CORD PLUG.
NOTE: IF YOU NEED TO USE AN EXTENSION CORD, USE ONLY A
HEAVY-DUTY (14-GAUGE OR LARGER) EXTENSION CORD TO AVOID
STARVING THE AMPLIFIER OF ALL THE CURRENT NECESSARY FOR
FULL-POWER OPERATION.
Replacing the Fuse
CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE,
REPLACE THE FUSE WITH ONLY THE SAME TYPE AND RATING.
1. Remove the power cord from the wall outlet and from the
amplifier’s Power Cord Connector.
2. Insert a flat-blade screwdriver or similar tool into the
empty Power Cord Connector socket and gently pry the
fuse holder out of its socket (see Figure 4).
3. The power cord connector contains a spare fuse. Install it
into the fuse holder and replace the fuse holder back into
its socket next to the power cord connection.
4. Replace the spare fuse with one of the same type
and rating.
When the amplifier is operating, the fuse will blow to protect
it from possible internal parts failure. To avoid more serious
damage and the risk of fire, NEVER replace the fuse with any
size other than that indicated on the rear panel. Substitution
of a larger fuse may create serious damage to internal parts
and will void your Sonance warranty.
PROTECTION
BBE ON
ACTIVE
FIGURE 3:
FRONT-PANEL STATUS LEDS
CAUTION: REPLACE WITH THE
SAME TYPE AND RATING FUSE
120V–60Hz 1200W
–FUSE T10AL 250V
FIGURE 4:
POWER CONNECTOR
AND FUSE HOLDER

6
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
A.C. ONLED
The A.C. ONLED (see Figure 5) indicates that the amplifier’s
power cord is plugged-into a live AC outlet and its POWER but-
ton is ON. If the amplifier’s AC fuse ever opens, this LED will
go out. To use the Auto On
feature (see page 8), this
LED must remain ON at all
times.
ACTIVE LED
The amplifier’s ACTIVE LED
(see Figure 5) will illumi-
nate whenever any zone is active. Each zone’s Status
Indicators (see Figure 3, on page 5) also contain an
ACTIVE LED that will illuminate whenever that particular
zone is ON.
Source Connections
Always use quality high-fidelity interconnect cables such
as Sonance MediaLinQ®Bronze Interconnects. If source
components are more than 20 feet from the amplifier, use
the Sonance LS2 and LR2 Balanced Line-Level Sender and
Receiver (sold separately) to avoid signal degradation.
NOTE: ALWAYS CHECK LOCAL BUILD-
ING CODES BEFORE INSTALLING WIRE
IN WALLS OR CEILINGS.
• Connect stereo source compo-
nents (receiver, preamp, page
signal, etc.) that will feed all 8
channels to the BUS L & R inputs
(see Figure 6).
• Connect a mono auxiliary
source (page signal, electron-
ic doorbell, etc.) that will feed
all 8 channels to the BUS AUX
input (see Figure 6).
• Connect zone-specific sources
(audio control system zone
output, video game, etc.) into
the individual channel DIRECT
inputs (see Figure 7).
• Connect additional amplifiers
to the buffered BUS outputs (see
Figure 6). The source connected
to the BUS L & R inputs appears
at the L and R outputs, and the
source connected to the BUS AUX
input appears at the AUX
output.
Input Assignment DIP Switches
The Sonamp 875D MKII’s Input Assignment DIP switches
(see Figure 8) provide flexible configuration options. Settings
are changed by setting the switches either OFF (left) or ON
(right):
DIRECT: Assign channel to the channel DIRECT input source.
LEFT: Assign channel to the BUS L input source (default for
odd-numbered channels)
RIGHT: Assign channel to the BUS R input source (default for
even-numbered channels)
AUX: Assign channel to the BUS AUX input source
NOTE: ALL INPUTS SELECTED BY THE DIP SWITCHES ARE
SUMMED-TOGETHER. FOR EXAMPLE, FOR MONO (L+R)
OPERATION, ACTIVATE BOTH THE B US L AND B US R SWITCHES.
TAKE CARE WHEN SETTING VOLUME LEVELS SINCE SUMMED L&R
INPUTS CAN INCREASE SIGNAL GAIN BY UP TO +6dB.
See pages 12 – 17 for illustrations of different system
configurations.
Input Sensitivity Adjustment
There are two ways to adjust the individual channel input
sensitivity (volume) on the 875D MKII:
• The front panel has recessed input
sensitivity potentiometers (see
Figure 9). These can be adjusted
using a small screwdriver.
• Input sensitivity can also be
adjusted by serial command
via the amplifier’s RS-232
input (see page 9).
NOTE: WHEN THE 875D MKII IS
BEING SERIAL-CONTROLLED, SERIAL VOLUME COMMANDS WILL
OVERRIDE THE FRONT-PANEL INPUT SENSITIVITY SETTINGS.
HOWEVER, IF THE FRONT-PANEL CONTROLS ARE MANUALLY
A.C. ONACTIVE
FIGURE 5: ACTIVE AND
A.C. ON LEDS
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
CH1 CH2
(BRIDGED)
FIGURE 7:
DIRECT INPUTS AND
INPUT ASSIGNMENT
DIP SWITCHES
L
R
A
BUS
INPUT
OUTPUT
BUFFERED
FIGURE 6:
BUS INPUTS &
OUTPUTS; AUX INPUT
& OUTPUT
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
DIRECT
INPUT
LEFT BUS
INPUT
RIGHT BUS
INPUT
AUX BUS
INPUT
MONO
OPERATION
FIGURE 8: INPUT ASSIGNMENT DIP SWITCH SETTINGS
LRLR
3 – 4 5 – 6
FIGURE 9:
INPUT SENSITIVITY
ADJUSTMENTS
(CH3– 6 SHOWN)

7
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
ADJUSTED AFTER THE SERIAL VOLUME COMMANDS ARE SENT, THEY
WILL OVERRIDE THE VOLUME SET BY THE SERIAL COMMANDS.
Speaker Connections
IMPORTANT: ALWAYS UNPLUG THE AMPLIFIER’S POWER CORD
FROM THE WALL OUTLET BEFORE MAKING SOURCE SIGNAL OR
SPEAKER CONNECTIONS.
Use Good Speaker Wire
For the best sound you should never use thin-gauge speaker
wire – it will constrict the sound and diminish bass response.
We recommend that you use premium Sonance MediaLinQ
speaker cable, which also complies with UL fire rating codes.
You may also experiment with audiophile brands of speaker
cable and interconnects, but be sure to check local codes
governing wire that may be installed within walls or ceilings.
Different brands of wire can have different characteristic
sounds and some may be more compatible with the sonic
“signature” of your various audio system components.
Your Sonamp 875D MKII is stable with any reputable brand
of speaker wire or cable.
Speaker Connections for Stereo Operation
1. Run speaker wire from each speaker to the amplifier
location. We recommend that you mark each wire’s
positive (‘+’) and negative (‘–’) leads, its channel (left or
right), and its zone, so that you can connect it to the
proper speaker terminals.
2. Strip no more than ¼” of insu-
lation from each speaker
lead. Twist the strands or tin
the exposed wire with solder
to ensure that there are no
stray strands. (Stray strands
that touch each other or touch
the amplifier chassis can
cause a short-circuit that can
damage the amplifier.)
3. The Sonamp 875D MKII has
removable 4-wire speaker
connectors (one for each
zone) that can accept wire up
to 14AWG. Flip the four levers
up to open the connector ter-
minals (see Figure 10).
NOTE: FOUR SCREW-TYPE SPEAKER CONNECTORS THAT ACCEPT
12-GAUGE WIRE ARE ALSO INCLUDED. SEE SIDEBAR ON PAGE 8.
4. Insert the exposed portions of the speaker wires into the
terminal openings. Make sure to insert the ‘+’ and ‘–’
leads into the correct openings as indicated in the chassis
markings below the connector (see Figure 10).
5. After making sure that there are no stray wires touching
each other, flip the four levers down to lock the wires in the
terminals.
6. Press the removable connector into the corresponding
zone speaker connector on the amplifier until it locks
into place. The removable connectors will only fit one way
on the amplifier.
CAUTION: ALWAYS PROVIDE SUFFICIENT SLACK IN WIRES
TO AVOID TENSION. ALWAYS CONTAIN ANY EXCESS WIRE TO
PREVENT TRIPPING HAZARDS.
Speaker Connections for Bridged Operation
The 875D MKII can operate with any pair of channels (zone)
in the single-channel bridged mode, which delivers 250
watts RMS into an 8-ohm speaker. Be sure the speaker
is rated to handle this increased output power.
IMPORTANT: THE MINIMUM SPEAKER IMPEDANCE FOR
BRIDGED OPERATION IS 8 OHMS. DO NOT OPERATE A ZONE IN
THE BRIDGED MODE INTO A SPEAKER THAT IS LESS THAN 8 OHMS
NOMINAL IMPEDANCE.
1. Move the NORMAL/BRIDGED
switch for the zone to
the Bridged position
(see Figure 11).
2. Strip no more than ¼” of
insulation from the speaker
leads. Twist the strands or
tin the exposed wire with
solder to ensure that there
are no stray strands. (Stray strands that touch each other
or touch the amplifier chassis can cause a short-circuit that
can damage the amplifier.)
3. The Sonamp 875D MKII has a removable 4-wire speaker
connector for each zone that can accept wire up to
14AWG. Flip the outer two
levers up to open the connec-
tor terminals.
NOTE: FOUR SCREW-TYPE SPEAK-
ER CONNECTORS THAT ACCEPT 12-
GAUGE WIRE ARE ALSO INCLUDED.
SEE SIDEBAR ON PAGE 8.
4. Insert the single speaker’s
“+” and “–” speaker leads
into the two outer terminal
openings on the 4-wire
speaker connector. Observe
the polarity shown in the
chassis markings above the
connector (see Figure 12).
+ 1 – – 2 +
BRIDGED
8WMIN
+ +
– –
Flip all 4 Levers UP
FIGURE 10:
STEREO SPEAKER
CONNECTIONS
+ 1 – – 2 +
BRIDGED
8WMIN
+ –
Flip Outer 2 Levers UP
FIGURE 12:
BRIDGED SPEAKER
CONNECTION
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
CH1 CH2
NORMAL BRIDGED
BRIDGED
FIGURE 11:
ZONE BRIDGING
SWITCH

8
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
5. After making sure that there are no stray wires touching
each other, flip the two levers down to lock the wires in the
terminal.
6. Press the removable connector into the corresponding
zone speaker connector on the amplifier until it locks into
place. The removable connectors will only fit one way on
the amplifier.
NOTE: WHEN A ZONE IS BRIDGED, THE SOURCE CONNECTION FOR
THE ODD-NUMBERED INPUT CHANNEL AND THE INPUT ASSIGNMENT
DIP SWITCHES FOR THE ODD-NUMBERED CHANNEL FUNCTION. THE
SOURCE CONNECTION FOR THE EVEN-NUMBERED CHANNEL AND THE
DIP SWITCHES FOR THE EVEN-NUMBERED CHANNEL ARE DISABLED.
Auto On
You can set your 875D MKII
so that any zone will
automatically turn ON when it
receives an audio signal
or when it receives a control
voltage from an external
source. Each zone has two
TRIGGER MODE switches located
on the rear panel: AUTO —
zone is turned ON when an
audio signal is present, and VOLT — zone is turned ON by an
external control voltage (see Figure 14).
NOTE: SETTING BOTH SWITCHES ON PUTS THAT ZONE IN THE
SERIAL CONTROL MODE, DISABLING ITS AUDIO AND VOLTAGE
TRIGGERS. (SEE S ERIAL C ONTROL , ON PAGE 9.)
Auto (Audio) Trigger Mode
When a zone’s AUTO TRIGGER MODE switch is set to the ON
position, any audio signal arriving at the zone’s active input
connectors (as determined by the input assignment DIP
switches, see page 6) will activate the zone for operation.
The sensitivity of the zone’s Auto
On circuit can be increased or
decreased by adjusting the AUTO
ONlevel control on the front panel
(see Figure 15).
• Turning the control clockwise
increases the sensitivity (less volt-
age is required to trigger the
Auto On function).
• Turning the control counter-
clockwise decreases the sensitivity (more voltage is required
to trigger the Auto On function).
The Auto On trigger sensitivity ranges from 2mV/ch in the full
clockwise position to OFF (Auto On will not trigger) in the full
counter-clockwise position.
In the Audio trigger mode, the zone will remain ON for
approximately 3 minutes after the audio signal has ceased.
This provides ample time to prevent erratic operation from
pauses between musical passages or while changing sources.
Voltage Trigger Mode
When a zone’s VOLT
TRIGGER MODE switch is set
to the ON position it can
be automatically turned
ON by an external trig-
ger voltage that appears
at the zone’s EXTERNAL
TRIGGER input connections
(see Figure 16).
NOTE: THE TRIGGER VOLTAGE MUST BE BETWEEN 5V AND 24V,
EITHER AC OR DC.
The 875D MKII has individual EXTERNAL TRIGGER input
connections for each zone and an additional EXTERNAL TRIGGER
input connection (labeled ALL) that will turn all
4 zones ON from a single voltage trigger.
The EXTERNAL TRIGGER connectors feature flip-up levers
similar to the ones used on the speaker connectors:
1. Open the levers for the zone’s EXTERNAL TRIGGER inputs.
2. Insert the control wires into the appropriate openings in
the connector.
3. Close the levers.
OFF (Bypass) Mode
When a zone’s AUTO and VOLT TRIGGER MODE switches are
both set in the OFF position, the Auto-On circuitry is
bypassed and the amplifier’s front-panel POWER button
will turn all zones ON and OFF simultaneously (see
Figure 1, on page 3).
EXTERNAL TRIGGER
INPUTS 5 – 24V AC–DC
ALL CH1/2 3/4 5/6 7/8
CH
+ – + – + – + – + –
FIGURE 16:
EXTERNAL TRIGGER INPUT
CONNECTIONS
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
RS-232
RS-232
RS-232
RS-232
FIGURE 14:
AUTO-ONTRIGGER
SWITCHES
AUTO ON
LRLR
3 – 4 5 – 6
FIGURE 15: ZONE
AUTO ON(AUDIO)
TRIGGER SENSITIVITY
ADJUSTMENTS
Using the Screw-Type Speaker Connectors
1. Insert the exposed portions of the speaker wires into the
terminal openings.
Make sure to insert
the ‘+’ and ‘–’ leads
into the correct open-
ings.
2. Tighten the set screws
to secure the wires.
3. Press the connector
into the Speaker Out
connector on the
amplifier until it locks
into place.
L+L–R–R+
Use
Screwdriver
to Tighten
Set Screws

9
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
BBE®Sound Enhancement
Each zone in the
875D MKII has two
individual BBE CONTROL
switches that let you set
the BBE enhancement for
that zone to HIGH (+6dB),
LOW (+3dB) or OFF (see
Figure 17):
• If the OFF/ON switch is
set to OFF, BBE
enhancement is not
applied.
• If the OFF/ON switch is
set to ON, BBE enhance-
ment is applied accord-
ing to the setting of the
LOW/HIGH switch: LOW = +3dB of BBE enhancement;
HIGH = +6dB of BBE enhancement.
NOTE: THE FACTORY-DEFAULT SETTING IS +3dB ON ALL ZONES.
The 875D MKII also has a set of BBE CONTROL INPUT
connections that allow the BBE enhancement for each zone
to be triggered ON and OFF individually by an external
control voltage (see Figure 17):
• The BBE OFF/ON switch for the zone must be in the OFF
position.
• The trigger voltage must be between 5V and 24V, either
AC or DC.
The BBE CONTROL INPUT connectors feature flip-up levers
similar to the ones on the speaker connectors:
1. Open the levers for the zone’s BBE CONTROL INPUT
connector.
2. Insert the control wires into the appropriate openings in
the connector.
3. Close the levers.
The front-panel zone status LEDs indicate if BBE enhancement
is being applied to a zone (see Figure 3, on page 5).
Zone Trigger Outputs
The 875D MKII has individual TRIGGER OUTPUT connections for
each zone that provide
12V DC whenever the
zone is ON (see Figure
18). This trigger can be
used to control other
devices such as Sonance
AL2/AS2 automatic sec-
ondary switches, other
Sonamps or 12V relays.
NOTE: THE CURRENT DRAW ON EACH ZONE’STRIGGER OUTPUT
CONNECTION SHOULD NOT EXCEED 200MA.
The TRIGGER OUTPUT connectors feature flip-up levers similar to
the ones on the speaker connectors:
1. Open the levers for the zone’s TRIGGER OUTPUT connector.
2. Insert the control wires into the appropriate openings in
the connector (observe the correct “+” and “–” polarity).
3. Close the levers.
Serial Control
The 875D MKII’s RS-232 Input
(see Figure 19) allows many
875D MKII functions to be
serial-controlled by third-party
control systems. It also allows
many of the amplifier’s perform-
ance parameters to be monitored
in real-time via the third-party controller.
The 875D MKII’s open architecture allows you to use it with a
variety of serial controllers. Specific modules for use with
Crestron®and AMX®controllers are available for download
at www.sonance.com. Please check the website for
information about compatibility with other controllers.
Connecting the 875D MKII to a Serial Control
Device
The 875D MKII’s RS-232 Pinout is: Pin 2: RXD;
Pin 3: TXD; Pin 5: GND.
Use a null modem cable to connect the 875D MKII’s
RS-232 Input to a serial control device. To verify the pinout of
other serial devices, the TXD pin of an active port will show a
negative DC voltage.
NOTE: TO CONNECT TO A CRESTRON CONTROLLER, USE THE
CRESTRON CNSP-124 CABLE (AVAILABLE SEPARATELY FROM
CRESTRON).
BBE CONTROL
BBE CONTROL
INPUTS 5 – 24V AC–DC
OFF LOW OFF LOW OFF LOW OFF LOW
ON HIGH ON HIGH ON HIGH ON HIGH
1/2 3/4 5/6 7/8 CH
+ – + – + – + –
FIGURE 17:
BBE CONTROL SWITCHES AND
EXTERNAL CONTROL INPUT
CONNECTIONS
TRIGGER OUTPUTS
12VDC
CH
ALL 1/2 3/4 5/6 7/8
FIGURE 18: ZONE TRIGGER
OUTPUT CONNECTIONS
RS-232
FIGURE 19:
RS-232 INPUT

10
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
Enabling 875D MKII Zone Serial Control
To enable serial control of a zone, both of that zone’s AUTO and VOLT TRIGGER MODE
switches must be set in the ON position (see Figure 20). Setting a zone to RS-232 disables its
rear-panel Auto and Voltage trigger functions — it can only be serial-controlled.
NOTE: ZONES NOT SET FOR RS-232 CONTROL CAN BE POLLED BY THE CONTROL DEVICE, BUT
THEY CANNOT BE CONTROLLED BY THE DEVICE.
875D MKII Serial Commands
Serial Protocol: Baud Rate = 9600, N, 8, 1; single CR
Commands In Syntax Parameters State
Power :Pxy<cr> x = Zone 1-4 or G (Global), y = State 0= Off; 1= On
Zone Volume Set :Vxyyy<cr> x = Zone 1-4 or G (Global), yyy = Volume 0 - 100 0 (Off) – 100 (Max)
Channel Volume Set :VCxyyy<cr> x = Channel 1 - 8 or G (Global), yyy = Volume 0 - 100 0 (Off) – 100 (Max)
NOTE: ISSUING A V OLUME S ET COMMAND WHEN THE AMPLIFIER IS OFF WILL PRE-SET THE ZONE OR CHANNEL’SSTART-UP VOLUME TO
THAT LEVEL.
Zone Volume Incremental Step :Vxyy<cr> x = Zone 1-4 or G (Global), yy = Volume Step Down/Up -n = Down, +n = Up; n = 1 to 5
Channel Volume Incremental Step :VCxyy<cr> x = Channel 1-8 or G (Global), yy = Volume Step Down/Up -n = Down, +n + up; n = 1 to 5
NOTE: THE 875D MKII STORES INDEPENDENT SETTINGS FOR CHANNEL AND ZONE VOLUME. IF C HANNEL V OLUME COMMANDS ARE
SENT TO A ZONE THAT IS BEING CONTROLLED WITH
Z ONE V OLUME COMMANDS (AND VICE-VERSA), THE VOLUME MAY INITIALLY
CHANGE TO A DIFFERENT LEVEL THAN EXPECTED.
Zone Mute :Mxy<cr> x = Zone 1-4 or G (Global), y = State 0 = Mute Off; 1= Mute On
Channel Mute :MCxy<cr> x = Channel 1 - 8 or G (Global), y = State 0 = Mute Off; 1 = Mute On
BBE Signal Processing :BPxy<cr> x = Zone 1-4 or G (Global), y = State 0= Off; 1= On
BBE HI & LO Frequency Boost :BBxy<cr> x = Zone 1-4 or G (Global), y = State 0= +6dB; 1=+9dB
NOTE: THE ECHO FOR THIS WILL PROVIDE TWO VALUES (HI AND LO).
BBE HI Frequency Boost :BHxy<cr> x = Zone 1-4 or G (Global), y = State 0= +6dB; 1=+9dB
BBE LO Frequency Boost :BLxy<cr> x = Zone 1-4 or G (Global), y = State 0= +6dB; 1=+9dB
Adding a question-mark character before the carriage return of any of the above commands will turn the command
into a query. Additionally, the following unique queries can also be issued:
Queries Syntax Parameters State
Temperature :TP?<cr> – 0 – 100 Degrees C
Audio Trigger Input :ATIx?<cr> x = Zone 1-4 or G (Global) [see Notes] 0= Off; 1= On
Fault/Protection :FPx?<cr> x = Zone 1-4 or G (Global) [see Notes] 0= Normal; 1= Fault
Voltage Trigger Input :VTIx?<cr> x = Zone 1-4, A (All) or G (Global) [see Notes] 0= Off; 1= On
Front-Panel Input Control Level :TVLx?<cr> x = Channel 1-8 or G (Global) [see Notes] 0 – 100
Firmware Version :VER?<cr> – Version 1.03 or later
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
RS-232
RS-232
RS-232
RS-232
FIGURE 20:
ALL FOUR ZONES SET FOR
SERIAL CONTROL

11
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
Serial Control Notes:
1. The 875D MKII will respond to each command with the
new value after the command is acted-upon.
Example: Zone 2 volume is 53. If a “:V2+3” (increase
Zone 2 volume +3 steps) command is then issued, the
875D MKII echoes back (V256) (Zone 2 volume is 56).
NOTE: SERIAL COMMANDS ARE NOT BUFFERED, AND SLIGHT TIME
DELAYS MAY BE NEEDED BETWEEN COMMANDS.
2. The 875D MKII will respond to invalid commands with
“ERR”.
Example: A “:V7?” poll is received (What is Zone 7
volume?). Since there is no Zone 7, the 875D MKII echoes
back “ERR”.
3. The 875D MKII will respond with “N/A” if a
recognized command cannot be executed.
Example: Zone 4 is OFF when a “:V4?” (What is Zone 4
volume?) query is received. Since Zone 4 is OFF, the
875D MKII echoes back “N/A”.
4a. Any command followed by a “?” will be treated as a
query and will cause the 875D MKII to echo back the
current state for that zone (z) or channel (c).
Example: Zone 4 is OFF and a “:P4?” query is received.
The 875D MKII echoes back “P40” (Zone 4 power is OFF).
4b. A command followed by a “G?” will be treated as a
global query and will cause the 875D MKII to echo back
the current state of each zone or channel.
Example: A “:BPG?” (Is BBE ON or OFF in Zones 1 – 4?)
query is received. The 875D MKII echoes back:
“BP11” (Zone 1 BBE is ON); “BP21” (Zone 2 BBE is ON);
“BP30” (Zone 3 BBE is OFF); “BP40” (Zone 4 BBE is OFF)
5. When an over-temperature or fault condition occurs (which
activates the amplifier’s protection circuits), the
875D MKII will issue an unsolicited echo reporting that
condition.
Example 1: If the temperature inside the amplifier reaches
68°C, it will issue the unsolicited echo “TP68”.
Example 2: If Zone 1 experiences a fault, the amplifier
will issue the unsolicited echo “FP11”.
Specifications
Number of Channels: 8 (four stereo pairs)
Output Power (Stereo): 65 watts RMS per channel (x 8),
0.25% THD, 20Hz – 20kHz,
@ 8 ohms
120 Watts per channel (x 8),
0.1% THD, 1kHz, @ 4 ohms
Output Power (Bridged): 250 Watts per channel (x 4)
@ 8 ohms
Frequency Response: 20Hz – 20kHz, ±1dB
Total Harmonic Distortion: 0.1% (1kHz, 8 ohms)
0.25% (1kHz, 4 ohms)
Signal to Noise Ratio: –96dB (w/22kHz filter)
Input Sensitivity: 1.0V for 65W RMS Output
650mV w/BBE ON (+3dB)
450mV w/BBE ON (+6dB)
Input Impedance: 10k ohms
Maximum Source
Input Voltage: 4.0 VAC RMS
3.0 VAC RMS w/BBE ON
Loop Output Impedance
(Buffered): 100 ohms
Serial Protocol
(RS-232 Input): 9600, N, 8, 1, single CR
Power Consumption: 1,200 Watts
BTU/HR: 288
AC Fuse
120V Unit: 10A (T10AL ~ 250V)
230V Unit: 6.3A (T6.3AL ~ 250V)
Dimensions (W x H x D): 16¾” x 37
/
8” x 17¼”
(425mm x 98mm x 438mm)
Dimensions (w/Rack Ears): 19” x 3½” x 17¼”
(W x H x D) (483mm x 88mm x 438mm)
Rack Space Requirement: 2U
Shipping Weight: 24 lbs (11kg)

12
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
Installation Examples
The illustrations on the next few pages show the wide variety of audio and audio/video systems that can be assembled using
one or more Sonamp 875D MKII amplifiers. Your local authorized Sonance dealer is an expert in audio/video system
planning and installation. Sonance strongly recommends that you work with your dealer to ensure that your system is
properly planned, assembled, and installed.
System 1: Basic Background Music System with Paging Capabilities
Features: Common Music Source for all Four Rooms • Two Zones with Paging Capabilities
Connecting a telephone page output (residential) or microphone preamp output (commercial) to the 875D MKII’s BUS AUX input
and a music source to the BUS L & R inputs lets you mix a music source with a paging signal. The Input Assignment DIP Switches
let you individually configure each channel to receive or not receive the paging (AUX) input. If you wish to mute the music
during paging, you can route the amplifier’s L/R input connections through a Sonance AL2/S Secondary Source Selector
activated by a 12V DC control signal from the paging device.
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
L
R
A
BBE CONTROL
BUS
INPUT
OUTPUT
BUFFERED
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
BBE CONTROL
INPUTS 5 – 24V AC–DC
EXTERNAL TRIGGER
INPUTS 5 – 24V AC–DC
TRIGGER OUTPUTS
12VDC
OFF LOW OFF LOW OFF LOW OFF LOW
ON HIGH ON HIGH ON HIGH ON HIGH
1/2 3/4 5/6 7/8
+ 1 – – 2 + + 3 – – 4 + + 5 – – 6 + + 7 – – 8 +
CH
CH1 CH2
NORMAL BRIDGED NORMAL BRIDGED
ALL CH
CH
RS-232
1/2 3/4 5/6 7/8
ALL
S/N
1/2 3/4 5/6 7/8
+ – + – + – + – + –
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
NORMAL BRIDGED NORMAL BRIDGED
+ – + – + – + –
(BRIDGED)
CH3 CH4
(BRIDGED)
CH5 CH6
(BRIDGED)
CH7 CH8
(BRIDGED)
CAUTION: REPLACE WITH THE
SAME TYPE AND RATING FUSE
120V–60Hz 1200W
–FUSE T10AL 250V
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
RS-232
RS-232
RS-232
RS-232
SONAMP
®
875D SE MKII
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
MICROPHONE PREAMP
— OR —
TELEPHONE PAGE OUT
INPUT SOURCE
TAPE RECORD
OUTPUT
OUTPUT
ZONE 1
Music + Paging
ZONE 4ZONE 2
Music Only Music Only Music + Paging
ZONE 3
CD iPORT TAPE SATELLITE
Volume Control Volume Control Volume Control Volume Control
FROM SOURCE
COMPONENTS
Channel Assignment
DIP Switch Settin
g
s
Channel Assignment
DIP Switch Settin
g
s
Channel Assignment
DIP Switch Settin
g
s
Channel Assignment
DIP Switch Settin
g
s
Set All Zones to A UTO ON
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
RS-232
RS-232
RS-232
RS-232

13
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
System 2: 7.1-Channel Home Theater System
Features: Up to 140W output power per channel (4-ohms) • Allows use of passive in-wall subwoofer
The 875D MKII can power all eight channels of a 7.1-channel home theater system while occupying only 2U of rack space. The
surround sound processor’s preamp outputs feed each channel’s DIRECT Input connection, and each channel’s input
assignment DIP Switch is set to DIRECT. For larger home theaters, two 875D MKIIs can be used with all 16 channels
operating in the bridged mode, supplying 250 watts to each of the 8 speakers in the system.
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
L
R
A
BBE CONTROL
BUS
INPUT
OUTPUT
BUFFERED
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
BBE CONTROL
INPUTS 5 – 24V AC–DC
EXTERNAL TRIGGER
INPUTS 5 – 24V AC–DC
TRIGGER OUTPUTS
12VDC
OFF LOW OFF LOW OFF LOW OFF LOW
ON HIGH ON HIGH ON HIGH ON HIGH
1/2 3/4 5/6 7/8
+ 1 – – 2 + + 3 – – 4 + + 5 – – 6 + + 7 – – 8 +
CH
CH1 CH2
NORMAL BRIDGED NORMAL BRIDGED
ALL CH
CH
RS-232
1/2 3/4 5/6 7/8
ALL
S/N
1/2 3/4 5/6 7/8
+ – + – + – + – + –
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
NORMAL BRIDGED NORMAL BRIDGED
+ – + – + – + –
(BRIDGED)
CH3 CH4
(BRIDGED)
CH5 CH6
(BRIDGED)
CH7 CH8
(BRIDGED)
CAUTION: REPLACE WITH THE
SAME TYPE AND RATING FUSE
120V–60Hz 1200W
–FUSE T10AL 250V
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
RS-232
RS-232
RS-232
RS-232
SONAMP
®
875D SE MKII
FRONT
LEFT
FRONT
RIGHT
SIDE
LEFT
SIDE
RIGHT
BACK
LEFT
BACK
RIGHT CENTER
SUB
WOOFER
7.1-CHANNEL
SURROUND SOUND
PROCESSOR
FRONT LEFT CENTER FRONT RIGHT
SIDE LEFT SIDE RIGHT
BACK LEFT BACK RIGHT
PASSIVE
SUBWOOFER
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
NORMAL BRIDGED
FOR ALL
CHANNELS:
Set All
Zones to
A
UTO ON
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
RS-232
RS-232
RS-232
RS-232

14
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
System 3: Multi-Zone System with Controller
Features: Channels automatically activated by controller • Each zone can be controlled by in-zone keypad
The 875D MKII is ideal for use with a multi-zone controller like the Sonance Navigator Harbor. By connecting the Navigator
Harbor’s Zone Keypad STATUS + and – terminals to the 875D MKII’s EXTERNAL CONTROL input connections, the controller will
automatically turn the amplifier’s channels ON and OFF as they are needed.
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
L
R
A
BBE CONTROL
BUS
INPUT
OUTPUT
BUFFERED
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
BBE CONTROL
INPUTS 5 – 24V AC–DC
EXTERNAL TRIGGER
INPUTS 5 – 24V AC–DC
TRIGGER OUTPUTS
12VDC
OFF LOW OFF LOW OFF LOW OFF LOW
ON HIGH ON HIGH ON HIGH ON HIGH
1/2 3/4 5/6 7/8
+ 1 – – 2 + + 3 – – 4 + + 5 – – 6 + + 7 – – 8 +
CH
CH1 CH2
NORMAL BRIDGED NORMAL BRIDGED
ALL CH
CH
RS-232
1/2 3/4 5/6 7/8
ALL
S/N
1/2 3/4 5/6 7/8
+ – + – + – + – + –
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
NORMAL BRIDGED NORMAL BRIDGED
+ – + – + – + –
(BRIDGED)
CH3 CH4
(BRIDGED)
CH5 CH6
(BRIDGED)
CH7 CH8
(BRIDGED)
CAUTION: REPLACE WITH THE
SAME TYPE AND RATING FUSE
120V–60Hz 1200W
–FUSE T10AL 250V
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
RS-232
RS-232
RS-232
RS-232
SONAMP
®
875D SE MKII
ZONE 1 ZONE 4ZONE 2 ZONE 3
K2
Keypad K1 Keypad
K2
Keypad
K2
Keypad
F
F
U
U
S
S
E
E
F
F
U
U
S
S
E
E
F
F
U
U
S
S
E
E
F
F
U
U
S
S
E
E
6543 21
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
NORMAL BRIDGED
FOR ALL
CHANNELS:
To Additional Zones
(Keypads/Amplifiers)
From A
/
V Sources
(DVD Player, VCR, iPort, etc.)
Sonance
Navigator
Harbor
875D SE MKII
Amplifier CH. 1 – 8
External Trigger Inputs
connected to Navigator
Harbor keypad Status +
and Status – terminals. Set
Amplifier Trigger Mode
switches to V
OLT position.

15
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
System 4: Advanced Multi-Zone System with Central Control System
Features: Serial control of amplifiers • Amplifier parameters can be monitored on controller display
The 875D MKII’s RS-232 input allows it to be directly controlled by central whole-home control systems. The system
programmer can build the 875D MKII’s functions into macros, and the amplifier’s operating parameters can be displayed on
the controller’s touchscreen displays.
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
L
R
A
BBE CONTROL
BUS
INPUT
OUTPUT
BUFFERED
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
BBE CONTROL
INPUTS 5 – 24V AC–DC
EXTERNAL TRIGGER
INPUTS 5 – 24V AC–DC
TRIGGER OUTPUTS
12VDC
OFF LOW OFF LOW OFF LOW OFF LOW
ON HIGH ON HIGH ON HIGH ON HIGH
1/2 3/4 5/6 7/8
+ 1 – – 2 + + 3 – – 4 + + 5 – – 6 + + 7 – – 8 +
CH
CH1 CH2
NORMAL BRIDGED NORMAL BRIDGED
ALL CH
CH
RS-232
1/2 3/4 5/6 7/8
ALL
S/N
1/2 3/4 5/6 7/8
+ – + – + – + – + –
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
NORMAL BRIDGED NORMAL BRIDGED
+ – + – + – + –
(BRIDGED)
CH3 CH4
(BRIDGED)
CH5 CH6
(BRIDGED)
CH7 CH8
(BRIDGED)
CAUTION: REPLACE WITH THE
SAME TYPE AND RATING FUSE
120V–60Hz 1200W
–FUSE T10AL 250V
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
L
R
A
BBE CONTROL
BUS
INPUT
OUTPUT
BUFFERED
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
BBE CONTROL
INPUTS 5 – 24V AC–DC
EXTERNAL TRIGGER
INPUTS 5 – 24V AC–DC
TRIGGER OUTPUTS
12VDC
OFF LOW OFF LOW OFF LOW OFF LOW
ON HIGH ON HIGH ON HIGH ON HIGH
1/2 3/4 5/6 7/8
+ 1 – – 2 + + 3 – – 4 + + 5 – – 6 + + 7 – – 8 +
CH
CH1 CH2
NORMAL BRIDGED NORMAL BRIDGED
ALL CH
CH
RS-232
1/2 3/4 5/6 7/8
ALL
S/N
1/2 3/4 5/6 7/8
+ – + – + – + – + –
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
NORMAL BRIDGED NORMAL BRIDGED
+ – + – + – + –
(BRIDGED)
CH3 CH4
(BRIDGED)
CH5 CH6
(BRIDGED)
CH7 CH8
(BRIDGED)
CAUTION: REPLACE WITH THE
SAME TYPE AND RATING FUSE
120V–60Hz 1200W
–FUSE T10AL 250V
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
RS-232
RS-232
RS-232
RS-232
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
RS-232
RS-232
RS-232
RS-232
SONAMP
®
875D SE MKII
SONAMP
®
875D SE MKII
Audio Distribution
Processor
Controller Unit
TouchScreen Control Panel
L
R
AUDIO OUTPUTS
CONTROL INPUT
CONTROL OUTPUTS TOUCH
SCREENS
ZONE
1
ZONE
2
ZONE
3
ZONE
4
ZONE
5
ZONE
6
L
R
SOURCE
INPUTS
1 2 3 4 5 6
ZONE
7
ZONE
8
RS-232 RS-232
RS-232
RS-232
RS-232
From Source Components
To Internet
(For Remote Monitoring
of Amplifier)
To Zone 5 To Zone 6 To Zone 7 To Zone 8
To Zone 1 To Zone 2 To Zone 3 To Zone 4
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
NORMAL BRIDGED
FOR ALL
CHANNELS:
Set ‘Auto’ and ‘Volt’ Switches
for All Zones to ON
Set ‘Auto’ and ‘Volt’ Switches
for All Zones to ON

16
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
System 5: Automatic Input Switching Between Sources Using an AL2 Selector
Features: Automatically selects iPort®when iPod®is played • Automatically activates BBE when iPod is played
By feeding two sources through a Sonance AL2 Automatic Secondary Source Selector, the system will automatically select the
INPUT B source whenever the iPort/iPod is playing. By connecting the 875D MKII’s BBE CONTROL OFF/ON switches to the AL2’s
CONTROL OUTPUT, BBE processing is automatically activated whenever the iPod plays. When the iPod stops playing, the input
automatically switches back to the CD changer, and the 875D MKII’s BBE processing switches OFF.
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
L
R
A
BBE CONTROL
BUS
INPUT
OUTPUT
BUFFERED
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
BBE CONTROL
INPUTS 5 – 24V AC–DC
EXTERNAL TRIGGER
INPUTS 5 – 24V AC–DC
TRIGGER OUTPUTS
12VDC
OFF LOW OFF LOW OFF LOW OFF LOW
ON HIGH ON HIGH ON HIGH ON HIGH
1/2 3/4 5/6 7/8
+ 1 – – 2 + + 3 – – 4 + + 5 – – 6 + + 7 – – 8 +
CH
CH1 CH2
NORMAL BRIDGED NORMAL BRIDGED
ALL CH
CH
RS-232
1/2 3/4 5/6 7/8
ALL
S/N
1/2 3/4 5/6 7/8
+ – + – + – + – + –
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
NORMAL BRIDGED NORMAL BRIDGED
+ – + – + – + –
(BRIDGED)
CH3 CH4
(BRIDGED)
CH5 CH6
(BRIDGED)
CH7 CH8
(BRIDGED)
CAUTION: REPLACE WITH THE SAME TYPE AND RATING FUSE
120V–60Hz 1200W
–FUSE T10AL 250V
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
RS-232
RS-232
RS-232
RS-232
SONAMP
®
875D SE MKII
RL RL
R
L
CONTROL OUTPUT
12VDC 100mA
INPUT A INPUT B
OUTPUT
AUTO SWITCH, LINE LEVEL
IN
OUT
12VDC
150mA
TRIGGER
SENSITIVITY
B TO A
DELAY
AL2
+ –
MENU
BBE CONTROL
BBE CONT
R
INPUTS 5 –
OFF LOW OFF LOW OFF LOW OFF LOW
ON HIGH ON HIGH ON HIGH ON HIGH
1/2 3/4 5/6 7/8 CH
+ – + – + – + –
Notes:
• Connect the AL2 C ONTROL O UTPUT to each zone where
BBE processing is desired.
• Set the BBE C
ONTROL OFF/ON switches in the OFF
position.
• Set the BBE L
OW /H IGH switches to the desired amount
of BBE processing: L
OW = +3dB; H IGH = +6dB.
When the AL2 Input B source (iPort/iPod) plays, it
overrides the Input A source (CD changer) in all zones,
and BBE automatically activates in the zones
connected to the AL2 C
ONTROL O UTPUT .
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
NORMAL BRIDGED
FOR ALL ZONES:
Set All Zones to A UTO ON
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
RS-232
RS-232
RS-232
RS-232
CAT-5
Cable
iPort
Audio Wallplate
iPort
with iPod
CD Changer
AL2 Selector
To Zone
1
To Zone
2
To Zone
3
To Zone
4

17
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
System 6: Using a K2 Keypad to Control the 875D MKII’s BBE Sound Enhancement
Features: User can turn BBE sound enhancement ON/OFF from inside the listening zone
The Sonance Navigator K2 Keypad Controller can be used to manually turn the 875D MKII’s BBE sound enhancement
ON and OFF in the zone it is controlling. Connect the keypad’s RELAY and GROUND terminals to the 875D MKII’s BBE CONTROL
INPUT for that zone and program a button on the keypad’s LCD panel to toggle the Relay command ON and OFF. You can even
re-label the button on the K2 to say “BBE ON”. Set the BBE LOW/HIGH switch for the zone to LOW for +3dB of BBE
processing or to HIGH for +6dB of BBE processing. (Leave the zone’s BBE ON/OFF switch in the OFF position.)
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
L
R
A
BBE CONTROL
BUS
INPUT
OUTPUT
BUFFERED
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
DIRECT
LEFT
RIGHT
AUX
BBE CONTROL
INPUTS 5 – 24V AC–DC
EXTERNAL TRIGGER
INPUTS 5 – 24V AC–DC
TRIGGER OUTPUTS
12VDC
OFF LOW OFF LOW OFF LOW OFF LOW
ON HIGH ON HIGH ON HIGH ON HIGH
1/2 3/4 5/6 7/8
+ 1 – – 2 + + 3 – – 4 + + 5 – – 6 + + 7 – – 8 +
CH
CH1 CH2
NORMAL BRIDGED NORMAL BRIDGED
ALL CH
CH
RS-232
1/2 3/4 5/6 7/8
ALL
S/N
1/2 3/4 5/6 7/8
+ – + – + – + – + –
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
BRIDGED
8WMIN
NORMAL BRIDGED NORMAL BRIDGED
+ – + – + – + –
(BRIDGED)
CH3 CH4
(BRIDGED)
CH5 CH6
(BRIDGED)
CH7 CH8
(BRIDGED)
CAUTION: REPLACE WITH THE
SAME TYPE AND RATING FUSE
120V–60Hz 1200W
–FUSE T10AL 250V
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
AUTO
VOLT
TRIGGER MODE
CH 1/2
CH 3/4
CH 5/6
CH 7/8
OFF ON
RS-232
RS-232
RS-232
RS-232
SONAMP
®
875D SE MKII
BBE CONTROL
BBE CONT
R
INPUTS 5 –
OFF LOW OFF LOW OFF LOW OFF LOW
ON HIGH ON HIGH ON HIGH ON HIGH
1/2 3/4 5/6 7/8 CH
+ – + – + – + –
To Zone
Controller
K2 Rear Panel
Notes:
• Set the BBE C
ONTROL OFF/ON switches in the OFF
position.
• Set the BBE L
OW /H IGH switches to the desired amount
of BBE processing: L
OW = +3dB; H IGH = +6dB.
Notes:
• Connect the K2 R ELAY C TRL and G ND terminals to the
875D SE MKII’s BBE C
ONTROL terminals of each zone
where BBE processing is desired.
• Program a K2 button to toggle the ‘Relay’ command ON
and OFF.

18
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
LIMITED FIVE (5) YEAR WARRANTY
Sonance warrants to the first end-user purchaser that this Sonance-brand product (“Product”), when purchased from an
authorized Sonance Dealer/Distributor, will be free from defective workmanship and materials for the period stated below.
Sonance will at its option and expense during the warranty period, either repair the defect or replace the Product with a new
or remanufactured Product or a reasonable equivalent.
EXCLUSIONS
TO THE EXTENT PERMITTED BY LAW, THE WARRANTY SET FORTH ABOVE IS IN LIEU OF, AND EXCLUSIVE OF, ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, AND IS THE SOLE AND EXCLUSIVE WARRANTY PROVIDED BY SONANCE. ALL OTHER
EXPRESS AND IMPLIED WARRANTIES, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY, IMPLIED WARRANTY OF
FITNESS FOR USE, AND IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE ARE SPECIFICALLY EXCLUDED. No one
is authorized to make or modify any warranties on behalf of Sonance.
The warranty stated above is the sole and exclusive remedy and Sonance’s performance shall constitute full and final
satisfaction of all obligations, liabilities and claims with respect to the Product. IN ANY EVENT, SONANCE SHALL NOT BE
LIABLE FOR CONSEQUENTIAL, INCIDENTAL, ECONOMIC, PROPERTY, BODILY INJURY, OR PERSONAL INJURY DAMAGES
ARISING FROM THE PRODUCT, ANY BREACH OF THIS WARRANTY OR OTHERWISE.
This warranty statement gives you specific legal rights, and you may have other rights which vary from state to state. Some
states do not allow the exclusion of implied warranties or limitations of remedies, so the above exclusions and limitations may
not apply. If your state does not allow disclaimer of implied warranties, the duration of such implied warranties is limited to
period of Sonance’s express warranty.
Your Product Model and Description: 875D MKII
Warranty Period for this Product: Five (5) years from the date on the original sales receipt or invoice or other satisfactory proof
of purchase.
Additional Limitations and Exclusions from Warranty Coverage: The warranty described above is non-transferable, applies only
to the initial installation of the Product, does not include installation of any repaired or replaced Product, does not include
damage to allied or associated equipment which may result for any reason from use with this Product, and does not include
labor or parts caused by accident, disaster, negligence, improper installation, misuse (e.g. overdriving the amplifier or speaker,
excessive heat or cold or humidity, outdoor installation), or from service or repair which has not been authorized by Sonance.
Obtaining Authorized Service: To qualify for the warranty, you must contact your authorized Sonance Dealer/Installer or call
Sonance Customer Service at [phone] within the warranty period, must obtain a return merchandise number (RMA),
and must deliver the Product to Sonance shipping prepaid during the warranty period, together with the original sales receipt,
or invoice or other satisfactory proof of purchase.

19
SONAMP®875D MKII 8-CHANNEL AMPLIFIER
Notes:

©2008 Sonance. All rights reserved. Sonance, Sonamp, iPort and MediaLinQ are registered trademarks
of Dana Innovations.
BBE and its designs are the registered trademarks of BBE Sound, Inc.
ICEpower is a registered trademark of Bang & Olufsen.
Crestron is a trademark of Crestron Electronics, Inc. AMX is a trademark of AMX Corporation.
iPod is a registered trademark of Apple Corporation.
Due to continuous product improvement, all features and specifications are subject to change without notice. For the latest
Sonance product specification information visit our website: www.sonance.com
SONANCE • 212 Avenida Fabricante • San Clemente, CA 92672-7531 USA • [phone] or [phone]
FAX: [phone] • Technical Support: [phone]
www.sonance.com
33-5137 110608Final