CRESZA PA2100 User manual

OWNER’S MANUAL
PA2100
CRESZA
13970 SW 72nd Ave
Portland, OR 97223
503.914.4688
PA2100 Owner’s Manual 110322
FEATURES:
SPECIFICATIONS
Stereo (8 ohm): 100W per channel, <0.2% THD+N
Stereo (4 ohm): 125W per channel, <0.2% THD+N
Bridged Mono (8 ohm): 250W, 1kHz, <0.2% THD+N
Frequency Response: 10Hz ~ 50kHz, +0dB/ -3dB
Signal to Noise Ratio: 100dB below 100W output into 8 ohms
Channel Separation: 70dB @ 1kHz, referred to 100W output
into 8 ohms
Input Sensitivity: Variable, 350mV to 2.8V for rated power
into 8 ohms
AC Power Consumption: 700W maximum
Net Weight: 24lbs / 10.9kgs
Gross Weight: 30lbs / 13.6kgs
Stereo Power Amplifier
PA2100
Bass/Treble Control: +/- 12dB @ 100Hz and 10kHz
3.8”
(96.5mm)
16.5” (419mm)
MAIN / INTERRUPT priority input switching
MAIN auxiliary output
Speaker A/B switching
Signal sensing “Power On” and Trigger mode
Rear mounted treble and bass controls
High level input
Front panel balance and volume trim controls
Independent rear left / right master level controls
Front panel diagnostic LEDs
Triple-Darlington Power Amplifier Stages
Dual-differential error amplifiers
Rack-mountable
13.75”
(349mm)
PA2100
PA2100
Congratulations on your purchase of the CRESZA PA2100.
Please take a few moments to read this entire manual, and be sure to
retain this document for future reference. Please read and observe all
safety instructions detailed on page 2.
NOTE: If any part of this product is damaged or missing, please call your
dealer or AudioSource® directly at 1.877.715.5439 or 503.914.468.8
Please read your warranty and retain your receipt and original carton
for possible future use.

17.
- This lightning flash with arrowhead symbol within an equilateral triangle is
intended to alert the user to the presence of non-insulated “dangerous voltage”
within the product’s enclosure that may be of sufficient magnitude to constitute
a risk of electric shock.
- Warning: To reduce the risk of electric shock, do not remove cover (or back) as
there are no user-serviceable parts inside. Refer servicing to qualified personnel.
- The exclamation point within an equilateral triangle is intended to alert the user
to the presence of important operating and maintenance instructions in the
literature accompanying the appliance.
18. Protective earthing terminal. The apparatus should be connected to a
mains socket outlet with a protective earthing connection.
19. Correct Disposal of this product. This marking indicates that this pro-
duct should not be disposed with other household wastes throughout the EU.
To prevent possible harm to the environment or human health from uncontroll-
ed waste disposal, recycle it responsibly to promote the sustainable reuse of
material resourcees. To return your used device, please use the return and
collection systems or contact the retailer where the product was purchased.
They can take this product for environmental safe recycling.
20. No naked flame sources, such as lighted candles, should be placed on the
apparatus.
21. Do not install this equipment in a confined or building-in space such as a book
case or similar unit, and remain a well ventilation openings with items such as
newspaper, table-cloths, curtains etc.
22. WARNING: for the terminals marked with symbol of “ ” may be of sufficient
magnitude to constitute a risk of electric shock. The external wiring connected
to the terminals requires installation by an instructed person or the use of ready-
made leads or cords.
23. CAUTION: These servicing instructions are for the use by qualified service
personnel only. To reduce the risk of electric shock, do not perform any
servicing other than that contained in the operating instructions unless you
are qualified to do so.
24. Class 2 wiring: To reduce the risk of electric shock, The external wiring conn-
ected to the terminals marked with “class 2 wiring” requires installed with class
2 wiring by an instructed person or the use of ready-made leads or cords.
25. This apparatus is for professional use only.
PA2100
OWNER’S MANUAL
13970 SW 72nd Ave, Portland, OR 97223 • 503.914.4688
2
CAUTION
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER. NO
USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL!
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions
2. Keep these instructions
3. Heed all warnings
4. Follow all instructions
5. Do not use this apparatus near water
6. Clean only with dry cloth
7. Do not block any ventilation openings. Install in accordance with the manu-
facture’s instructions.
8. Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding plug.
A polarized plug has two blades with one wider than the other. A grounding
plug has two blades and a third grounding prong. The wide blade or
third prong is provided for your safety. If the provided plug does not fit into
your outlet, consult an electrician for replacement of the obsolete outlet.
MAGNETIC FIELD: !!CAUTION!! Do not locate sensitive high-gain equipment such as preamplifiers or tape decks directly above or below the unit. Because
this amplifier has a high power density, it has a strong magnetic field, which can induce hum into unshielded devices that are located nearby. The field is
strongest just above and below the unit. If an equipment rack is used, we recommend locating the amplifier(s) in the bottom of the rack and the preamplifier
or other sensitive equipment at the top.
10. Protect the power cord from being walked on or pinched particularly at the
plugs, convenience receptacles, and at the point of exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the apparatus. When a cart or rack is used,
use caution when moving the cart/apparatus combination to avoid
injury from tip-over.
13. Unplug the apparatus during lightning storms or when unused for long periods
of time.
14. Refer all servicing to qualified personnel. Servicing is required when the
apparatus has been damaged in any way, such as power supply cord or
plug is damaged, liquid has been spilled or objects have fallen into the
apparatus has been exposed to rain or moisture, does not operate normally,
or has been dropped.
15. WARNING: To reduce the risk of fire or electric shock, do not expose this
apparatus to rain or moisture. The apparatus shall not be exposed to
dripping or splashing and that objects filled with liquids, such as vases,
shall not be placed on apparatus.
16. WARNING: The mains plug/appliance coupler is used as disconnect device,
the disconnect device shall remain readily operable.

Clip LEDs
Blinks red during signal clipping. Shows solid red during protect mode.
Check speaker wires for shorts or extreme low impedance (< 4 ohms).
1. Power Switch
Switches the PA2100 on or off.
2.
Speaker Selector
Selects speaker zone A or B. For A + B zones push both buttons in.
3.
Balance
Fades speaker output between the Right and Left Channels
4.
Volume
Trims amplifier volume from -12dB to +6dB referenced to the rear panel Level
controls.
FRONT PANEL CONTROLS
7.
Interupting Line Input
This is the secondary input, use MAIN IN for your main input.
INTERRUPTING INPUT can be used if a second source is desired and
takes over when signal is present and has at least a 5mV level.
When there is no signal, or a signal with less than 5mV level, the amp
switches back to MAIN IN after a brief delay.
8.
9.
Main Input/Output
11.
12. Mode Select Switch
Switches the amplifier from Stereo mode to Bridged mode.
13.
Speaker Zone A Output
Speaker output terminals for zone A. Minimum impedance: 8 ohm bridged
or 4 ohm stereo.
Speaker Zone B Output
Speaker output terminals for zone B. Minimum impedance: 8 ohm bridged
or 4 ohm stereo.
REAR PANEL CONTROLS
Figure 1. Front Panel
Figure 2. Rear Panel
MAIN IN should be used as the “primary” or main input for the amplifier.
Connect your receiver or main source to this input. Use MAIN OUT to pass
MAIN IN signal to another amplifier.
If you will be connecting one or two pair of speakers to the amplifier, place
the switch in the “Stereo” position. NOTE: For playing 2 pairs of speakers
(A plus B), make sure each speaker has an impedance of 8 ohms or greater.
When set to “Bridged” mode, the amplifier is a single channel mono amplifier.
NOTE: The PA2100 supplies 250W in bridged mode, Please verify that your
speakers are capable of handling such power to avoid possible damage!
For stereo output connect the speaker’s positive (red) terminal to the amplifier’s
positive (red) terminal, and the speaker’s negative (black) terminal to the
amplifier’s negative (black) terminal for each Right and Left speaker.
Place the “MODE” switch in the “BRIDGED” position and use both red
terminals to connect to the speaker. Connect the speaker’s positive (red)
terminal to the amplifier’s red (+) terminal noted next to the bridging mark, and
the speaker’s negative (black) terminal to the amplifier’s unmarked positive
NOTE: Only one zone (A or B) can be bridged. Do not attempt to bridge both
A and B speaker terminals! This may result in a lower impedance than the
amplifier is designed for and may damage your amplifier. The minimum
impedance for the total load connected in bridged mode is 8 ohms.
STEREO MODE
BRIDGED MODE
BRIDGED MODE- MONO APPLICATION
For bridged mode, playing Right and Left together as mono output, use a
Y cable adapter to connect Right and Left RCA signal to the Right (Red) input
at MAIN IN. Set the MODE switch to BRIDGED and follow the instructions
for bridged speaker connection in the SPEAKER TERMINALS section of
this manual.
SPEAKER TERMINALS - STEREO MODE
SPEAKER TERMINALS - BRIDGED MODE
6.
Bass and Treble Controls
These controls can adjust bass and treble frequencies +/- 12dB at 100Hz
and 10kHz.
10.
(red) terminal.
NOTE: Use Class 2 wiring for speaker connections.
To wire the output connector: 1. Strip the insulation off each speaker wire
to expose 3/8" (10 mm) of bare conductor. 2. Unscrew the output terminal
binding post several twists, insert each wire into the correct terminal.
3. Tighten binding post by twisting clock-wise until it is firmly clamping the
speaker wire.
Warning: While the amplifier does self-protect under most improper output
conditions, misconfiguration of loudspeaker mode and incorrect connection
of loudspeakers could damage connected loudspeakers and/or amplifier.
Please refer installation to a qualified installation professional, and always
check state and local electrical codes when installing.
5.
Speaker Level Input/Speaker Level Input Line Select
Can be used to connect a source with speaker level output instead
of line level outputs. Use the Speaker Level Input Line Select to route
the source to either Main Input or Interrupt Input function.
Delay Time
Allows for a 3-15 second delay to be set and accommodate
the source connected to the Interrupting Input.
Master Level Controls
Provides independent adjustment of Left and Right channel
maximum level.
12V Trigger
Allows the PA2100 to be powered on by other electronics or to power
on other electronics via a 3.5mm mini phone plug cable.
14. Power Mode
Sets the power on option of the PA2100. Set it to Normal for manual power
on/off. Set to Auto-On for signal sensing power up. Set to Trigger if the 12V
Trigger input is used.
15.
16.
PA2100
MAIN
-
IN
L
L
R
L
R
R
Speaker IN
IN OUT
INTER. MAIN
INTERRUPT
+ +
- -
VV
Serial Number:
IN OUT
Delay
Time
3 Sec 15 Sec
Master Level
Min Max Min Max
Mode
Stereo Bridged
12V Trigger
+
Trigger Normal
Auto On
LR
Use Class 2 Wiring
Minimum Impedance:
8 ohm Bridged
4 ohm Stereo
Speaker A
R L
RL
-
-
-+ +
+
-- + +
Bridge
Speaker B
FUSE:T6.3AL 250V FOR 115VAC 60Hz
FUSE:T3.15AL 250V FOR 230VAC 50Hz
MODEL PA2100
Custom Manufactured in China
CAUTION: See User Manual Before
Replacing Fuse
3076079
POWER RATING: ~115VAC 60Hz/230VAC 50Hz 700W
CAUTION
ATTENTION: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
RISK OF ELECTRIC SHOCK
DO NOT OPEN
PA2100
OWNER’S MANUAL
13970 SW 72nd Ave, Portland, OR 97223 • 503.914.4688 3
10
13 14
9
2
1354
6811 12
7
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PA2100
OWNER’S MANUAL
13970 SW 72nd Ave, Portland, OR 97203 • 503.914.4688
4
APPLICATIONS
STEREO SETUP
In this configuration, the mode switch is set to “Stereo”. Connect the line out jacks
from a stereo pre-amplifier or source to the MAIN input jacks of your PA2100.
Next connect your speakers to the terminals marked “Speaker A” observing
proper polarity. Select the “A” speakers using the front panel zone selection
buttons. Connect a second (optional) pair of speakers to the terminals marked
“Speaker B”. If you are connecting 4 speakers to the PA2100 they must be
8 ohm speakers only. Press A and B together to use both zones.
SETUP FOR MULTIPLE SOURCE
In the multiple source set up, a distributed audio system is connected to the
PA2100 as a local zone amplifier via the MAIN inputs. Normally the distributed
audio system will be the audio source for the PA2100. The distributed audio is
then passed on to be used by additional zones or sub zones in the distributed
system via the MAIN outputs.
The audio output of a local source, such as an MP3 Player, CD, television,
computer, etc., is connected to the PA2100 via the INTERRUPTING inputs, and
whenever the local source is active its signal will take priority over the
distributed audio signal present at MAIN input . However, the distributed audio signal
will still be present at the MAIN input. In this circumstance the audio output of the
local source will be heard via the PA2100. Once the local source is turned
off or muted, the PA2100 will automatically switch back to the distributed audio
system as an audio source, assuming the local source remains inactive. There
is a delay of up to 6 seconds when switching from INTERRUPTING input back
Limited Warranty
CRESZA warrants its amplifier products against defects in materials and
workmanship for a limited period of time. For a period of two years from date
of original purchase, we will repair or replace the product, at our option,
without charge for parts and labor. Customer must pay all parts and labor
charges after the limited warranty period expires. The limited warranty period
for factory refurbished products expires after ninety (90) days from date of
original purchase.
This limited warranty applies only to purchases from authorized CRESZA
electronics retailers. This limited warranty is extended only to the original
purchaser and is valid only to consumers in the United States.
Consumers are required to provide a copy of the original sales invoice from
an authorized CRESZA dealer when making a claim against this limited
warranty. This limited warranty only covers failures due to defects in
materials or workmanship that occur during normal use. It does not
cover failures resulting from accident, misuse, abuse, neglect, mishandling,
misapplication, alteration, faulty installation, modification, service by
anyone other than CRESZA, or damage that is attributable to Acts of
God. It does not cover costs of transportation to CRESZA or damage in
transit. The customer should return his defective product, freight prepaid
and insured, to CRESZA only after receiving a Return Authorization.
This warranty will become void if the serial number identification has been
wholly or partially removed, altered or erased. Repair or replacement under
the terms of this warranty does not extend the terms of this warranty. Should
a product prove to be defective in workmanship or material, the consumer’s
sole remedies will be repair or replacement as provided under the terms
of this warranty. Under no circumstances shall CRESZAbe liable for loss
or damage, direct, consequential or incidental, arising out of the use of or
inability to use the product. There are no express warranties other than
described above.
to MAIN inputs.
Mains Power Inlet & Fuse Holder
Accepts IEC type line cord. Afuse located in the integrated holder provides safety
protection from fault conditions: replace fuse with one of same type and rating only.
17.
Mains Voltage Selector
Voltage selection switch is preset to 115V (USA). For use in areas which require
230V contact your dealer. Fuse must be of type and rating marked on amplifier for
use at local mains voltage.
18.
IN
L
L
R
L
R
R
Speaker IN
IN OUT
INTER. MAIN
INTERRUPT MAIN
+ +
- -
V
V
Use these Inputs to connect
Pre-amp or Receiver Line Out
IN
L
L
R
L
R
R
Speaker IN
IN OUT
INTER. MAIN
INTERRUPT MAIN
+ +
- -
V
V
Use these Inputs to connect
Pre-amp or Receiver Line Out
Line Out to
Additional Zones
Connect Local Source
Line Out here (such as
.mp3 player)