Xantech Pa640 User manual

1

Amplifiers & Preamplifiers

INSTALLATION INSTRUCTIONS

PA640

SIX CHANNEL POWER AMPLIFIER



GENERAL INFORMATION

To enhance the ease of installation and obtain optimum performance from the PA640, we recommend that

you first become familiar with all its features and special capabilities by studying the descriptions and

INPUT PANEL

POWER REMOTE

ON/OFF

CH1 CH2

BRIDGED

STEREO

LEVEL

LINE INPUTS LINE INPUTS

BRIDGED

STEREO

CH3 CH4

LEVEL

CH5 CH6

LINE INPUTS

BRIDGED

STEREO

.2V3V

SYLMAR, CA MADE IN U.S.A.

PA640

SIX CHANNEL POWER AMPLIFIER

Fig. 1 The Model PA640

instructions in this manual.

The PA640 was designed to meet the audio power amplifier needs of custom installed multi-zoned systems

with high sonic quality. It's 6-5-4-3 multichannel capability permits a wide variety of other uses as well, such

as surround sound home theater applications. Specific features and technology are as follows:

• Cost/Size Efficiency. The PA640 features six 40-watt power amplifiers. This permits each PA640 to

drive 3-zones in a multi-zone system -- each with a 40-watt stereo amplifier per zone. The low profile

design, plus multiple amplifiers in a single package, delivers high quality at a reasonable price.

• Input Level Flexibility. The input levels are individually adjustable (per stereo pair) from a low of 0.2 volts

up to 3.3 volts. This gives the installer the ability to adjust the overall gain of the system or zone. For

instance, there may be a need to adjust the amplifier to deliver a controlled, maximum sound level into

a zone when the volume control on the preamp is set to maximum. This would act as a volume limiter

for any particular zone (i.e. to prevent the kids from over-driving wall speakers, etc.).

• 6-5-4-3 Output Flexibility. Each pair of amplifiers can be bridged to allow several channel and power

output capabilities. It can be configured into four power packages as follows:

- Six 40-watt amplifiers.

- One 140 and four 40-watt amplifiers.

- Two 140 and two 40-watt amplifiers.

- Three 140-watt amplifiers.

This gives the PA640 added use in many other applications, such as driving surround sound speaker

systems.

•Low Impedance Capability. Each amplifier is 2-Ohm safe under music conditions in stereo mode and

4-Ohm safe when bridged. This means, for instance, that you can drive two pairs of 8-Ohm speakers in

stereo mode in each zone with ease.

•Discrete Output Devices. All output and driver transistors are separate devices connected in a full-

complimentary Darlington configuration. This provides highest reliability in concert with highly linear

dynamic performance free of T.I.M. and slew induced distortions.

•Auto Protection Circuit. Protects the PA640 if a short or very low impedance is detected at the speaker

terminals. Each amplifier pair is protected separately, with an LED indicator showing which pair is in

protection. Normal operation is restored automatically within 3 to 4 seconds after the short is removed.

•Remote ON/OFF Jack. This jack allows the PA640 to be powered on and off by a positive DC voltage

ranging between 4 and 30 volts (11 mA @ 12 V). Specifically, it permits the 12 volt CO (Control Output)

from the Xantech ZPR68 to power one or more PA640's on and off automatically with zone ON/OFF

commands.

PA640

3

Amplifiers & Preamplifiers

PA640 PANEL DESCRIPTIONS

SYLMAR, CA MADE IN U.S.A.

POWER REMOTE

ON/OFF

CH1 CH2

BRIDGED

STEREO

LEVEL

LINE INPUTS LINE INPUTS

BRIDGED

STEREO

CH3 CH4

LEVEL

CH5 CH6

LINE INPUTS

BRIDGED

STEREO

3 4 5 3 4 5 3 4 5

PA640

SIX CHANNEL POWER AMPLIFIER

.2V3V

Fig. 2 PA640 Input Panel –

Features and Functions

1. POWER Indicator LED. This green LED lights when power is turned on by the POWER switch (item

# 8) or by a DC voltage applied to the REMOTE ON/OFF jack (item #2).

2. REMOTE ON/OFF Jack. This 3.5mm mono mini jack allows the PA640 to be powered on and off by

a positive DC voltage ranging between 4 and 30 volts (11 mA @ 12 V). For instance, it permits the

12 Volt CO (Control Output) from a Xantech ZPR68 IR controlled preamp to power the PA640 ON and

OFF automatically with zone ON/OFF commands. The DC Voltage must be applied continuously to

hold the ON condition and go to less than 0.5 Volt for the OFF condition.

NOTE:

The POWER switch (item #8) must be left in the MANUAL OFF (REMOTE ON/OFF)

position to permit the REMOTE ON/OFF jack to operate.

3. Input LEVEL Control. This screwdriver adjustable control (for each stereo or bridged pair) allows the

input level for full rated power output to be adjusted over a range of 0.2 volts to 3.3 volts (24.3 dB).

Normally you would adjust the driving preamp to max. volume, then set this control to the maximum

volume that the client desires for a given zone or room. This prevents the system from being driven

to potentially destructive power levels.

4. LINE INPUTS. These RCA type jacks are the audio inputs for the amplifier. Connect them to the

OUTPUT jacks of the driving preamp with good quality RCA type patch cables. Note that the inputs

are marked CH1, CH2, CH3, etc., signifying the individual channels. They correspond to the like

marked speaker terminals on the OUTPUT & AC panel (item # 7). When the switches (item #5) are

set to the BRIDGED mode, CH1, CH3 and CH5 become the active inputs and CH2, CH4 and CH6

are disabled.

5. BRIDGED/STEREO Switches. These switches allow each of the three pair of amplifiers to be placed

in either the BRIDGED 140 Watt (single channel) mode, or in the STEREO 40 Watts/channel (two

channel) mode.

CAUTION: Be sure to have the POWER turned OFF when changing the position of this switch and

when making the corresponding speaker connection changes.

PA640



PA640 PANEL DESCRIPTIONS

POWER

MANUAL ON

+ – – +

CH2 CH1

PROTECTION

SPEAKERS

+ – – +

CH6 CH5

PROTECTION + – – +

CH4 CH3

PROTECTION SPEAKER IMPEDANCE

STEREO MODE: 8 Ohms Min.

BRIDGED MODE: 16 Ohms Min.

MANUAL OFF

(REMOTE ON/OFF)

SPEAKERSSPEAKERS

+ –

BRIDGED + –

BRIDGED

678 9 10

6767

120 VAC

60 HZ

FUSE

Fig. 3 PA640 Output & AC Panel – Features and Functions

6. PROTECTION Indicator LED's. These red LED's, one for each pair of channels, light for 3 to 4 seconds

when the amplifier senses a short circuit or a very low load impedance (under 2-Ohms) at the speaker

terminals. This protects the amplifier from potentially harmful conditions. If the short condition or the

input signal is not removed, the amplifier will continue to cycle on and off at the 3 to 4 second interval.

CAUTION: Do not allow this to continue for a lengthy period of time. Reduce the volume, remove the

short or low impedance condition and try again.

NOTE: The PROTECTION LED's will also light for 5 to 8 seconds when the amplifier is first turned

on. This is a normal muting function that quiets the amplifier during start-up.

7. SPEAKER Terminals. These plug-in 4-terminal screw connectors permit speaker wire sizes up to 12

gauge. When making connections for the STEREO mode, be sure to observe the "+" and "–" polarity

markings, just under the CH1, CH2, etc., markings, for each wire pair going to the speakers.

CAUTION: When making connections for the BRIDGED mode, remember only one speaker is being

attachedperamplifierpair. Be sure to observe the outer "+" and "–" polarity markings on the 4-terminal

connector, as shown on the panel, for the one wire pair connecting to the speaker.

8. POWER Switch. When pressed to the IN position, power is applied to the PA640. This is the MANUAL

ON position. When pressed again, it releases to the OUT position (MANUAL OFF), turning the unit

OFF.

Inaddition,this switch must be left in the MANUAL OFF (REMOTE ON/OFF) position to permit external

DC Voltage control of power ON/OFF for the PA640.

NOTE: The PA640 may also be powered ON/OFF with an external AC line switch (such as the

switched AC outlet of a preamp, timer, etc.). For this type of operation, leave the POWER switch

depressed to the MANUAL ON position.

9. AC LINE Cord. Depending on the application, plug into a switched or un-switched 120V 60 Hz AC

outlet.

10. FUSE. When required, replace only with a fuse of the same type and rating (5 A 220V AC).

Replacement with a fuse of higher rating will not protect the amplifier and will void the warranty.

PA640

5

Amplifiers & Preamplifiers

PA640

Aluminum mounting

panel (preferred)

FINS

Fig. 5 Vertical mounting (preferred)

Shelf, wall, etc. 3-inch spacing

(minimum)

PA640 Aluminum mounting

panel (preferred)

Heat Dissipation

Fins

Fig. 4 Horizontal Mounting

INSTALLATION

PHYSICAL LOCATION AND MOUNTING

When you mount the PA640, you need to plan its location carefully. Pay close attention to each of the

following factors:

1. The amplifier is convection cooled. That is, it depends on the natural free flow of air over the heat

dissipating fins for ad-

equate cooling.

2. If mounted in an equip-

mentcabinetorothercon-

fining location, allow at

least 3 inches of space

above the heat sink fins

(seeFig. 4). Be sure there

are large openings to al-

low the entry of cool air

and the escape of warm

air.

3. If the cabinet contains

other heat generating

components, or you are

using several PA640's in

alargemulti-zonesystem,

you will have to pay even closer attention to adequate ventilation.

4. Do not hesitate to use fans, if necessary, to ensure a constant flow

of air over the PA640's and the other heat generating compo-

nents.

5. The PA640 will operate when mounted either horizontally or

vertically. The vertical placement is preferred, however, since it

will run approximately 5% to 10% cooler when so oriented. See

Fig. 5.

6. In multi-zone installations, you will have large bundles of leads to

accommodate audio, video and speaker connections. Be sure to

allow enough room for the leads and dress them so that they do

not block airflow.

7. Mounting the PA640 onto an aluminium panel (rather than on

wood or other non-heat conducting material) will add additional

heat dissipation capability. See Fig. 4 & 5.

8. Use the 4 holes on the chassis skirts and the screws provided to

mount the PA640.

PA640



INSTALLER'S NOTES

____________________________________________________________________________

PA640

7

Amplifiers & Preamplifiers

INSTALLATION (cont'd)

CONNECTING THE PA640

I When making connections to the PA640 be sure the power cord is unplugged. Proceed as follows:

Stereo Mode Connections

1. Using good quality RCA type patch cables, connect the L

and R OUTPUT jacks of the driving preamp to the CH1,

CH2, etc. LINE INPUTS jacks on the PA640. Do this for

each amplifier pair. Refer to Fig. 6.

2. Slide the BRIDGED/STEREO switch to the STEREO

position.

3. Using good quality speaker wire, connect the individual

speaker leads to the 4-terminal "SPEAKERS" connectors

on the PA640 as shown.

4. Even though the PA640 is 2-Ohm safe in Stereo Mode,

make sure the impedance presented to the speaker

terminals by the speakers (or any combination of speak-

ers) is 4-Ohms minimum.

5. Be sure to observe correct polarity by connecting the "+"

and "–" terminal from each channel on the PA640 to the

corresponding "+" and "–" terminals on each speaker.

Thiswillensure correct "phasing". See Fig. 6andSpeaker

Phasing below.

Since the connectors are removable, you may unplug

them for ease of lead assembly.

6. As a rule of thumb, use 18 gauge speaker wire for speaker

runsupto 30', 16 gauge up to 70', and14gaugeupto 150'.

The 4-terminal connectors accept wire sizes up to 12

gauge max.

7. Strip the insulation back about 1/4" and twist the strands

on each lead to prevent fraying.

CAUTION: After lead ends are inserted and the screws

tightened down, be sure there are no free strands that

could cause shorting!

Speaker Phasing

To obtain stable imaging and full bass response, it is imperative

that stereo speakers be connected "in phase" with each other.

You can verify this as follows:

1. If the "+" (positive) and "–" (negative) terminals on your

speakers are correctly marked, and visible, and you have

wired the system as shown in Figs. 6 and 7, then the

system will be "in phase". No further action is required.

Most manufacturer's identify the positive terminal with a

red binding post, a "+" sign, or a red dot.

2. If you are unsure of the markings, you can verify the

phasing. Using a mono sound source, such as AM radio,

alternately reverse the leads to one of the speakers. Pick

the connection that delivers a solid center image between

the speakers along with best bass response.

Fig. 6 STEREO Mode Connections

CH1 CH2

BRIDGED

STEREO

LEVEL

LINE INPUTS

VIDEO

AUDIO

RCA Type

Patch Cords

Preamp Outputs

ZPR68, etc.

PA640 Input Panel

PA640 Speakers & AC Panel

+ – – +

CH2 CH1

PROTECTION

SPEAKERS

+ –

BRIDGED

– +

Be sure speakers are

connected with correct

polarity as shown.

Wall speakers,

shelf speakers, etc.

Left Right

Set

BRIDGED/STEREO

Switch to

STEREO position

.2V3V

– +

PA640



CH1 CH2

BRIDGED

STEREO

LEVEL

LINE INPUTS

VIDEO

AUDIO

RCA Type

Patch Cords

Preamp Outputs

ZPR68, etc.

PA640 Input Panel

PA640 Speakers & AC Panel

+ – – +

CH2 CH1

PROTECTION

SPEAKERS

+ –

BRIDGED

Be sure speakers are

connected with correct

polarity as shown.

Speaker Systems

Set

BRIDGED/STEREO

Switches to

BRIDGED position

CH3 CH4

BRIDGED

STEREO

LEVEL

LINE INPUTS

+ – – +

CH4 CH3

PROTECTION

SPEAKERS

+ –

BRIDGED

– +

Right

Left

+ –

.2V3V

Fig. 7 BRIDGED Mode Connections

INSTALLATION (cont'd)

Bridged Mode Connections

In general, it is recommended that the BRIDGED

mode not be used in multi-room applications

whereseveralspeakersaredriventhroughroom

volume controls and the like. For such applica-

tions, use the STEREO mode. Instead, use the

BRIDGED mode for single speaker, higher power

applications, such as in surround sound systems.

Use speakers with an impedance rating of 8-Ohms

minimum.

To make connections for the BRIDGED

mode, follow the steps given before for

stereo connections, but with the follow-

ing exceptions:

1. Connect RCA type patch cables

from the OUTPUT jacks of the

driving preamp or other source to

the PA640 LINE INPUT jacks

marked CH1, and/or CH3, and/or

CH5. Do this for just the amplifier

pairsyou wish to run in the bridged

mode.

(Jacks marked CH2, CH4 & CH6

are disabled in BRIDGED mode).

Refer to Fig. 7.

CAUTION: Be sure power is OFF

when connecting or switching the

amp for BRIDGED operation.

2. Slide the BRIDGED/STEREO

switch to the BRIDGED position.

NOTE: Do this only on the amplifier pairs you

wish to run in the bridged mode!

3. Connectonespeaker wire pair between the 4-

terminal "SPEAKERS" connectors on the

PA640 and the speakers as shown in Fig. 7.

Be sure to use only the two outer terminals

marked "+" and "–" on the 4-terminal connec-

tor as shown on the panel for BRIDGED

connections.

NOTE: Only one speaker is connected per amplifier

pair in the BRIDGED mode!

CAUTION: When operating in the BRIDGED mode

(particularly when bench testing the amplifier) do not

make a ground or any other kind of connection to the

amplifier speaker terminals other than those to the

individual speakers as shown. Failures caused by

inappropriateconnectionsarenotcovered under the

warranty.

PA640

9

Amplifiers & Preamplifiers

PROBLEM

1. Power Indicator does not light – no sound.

2. No sound from CH2, CH4 or CH6 when

stereo operation is desired.

3. Sound cuts in and out every 3 to 5 seconds.

4. PA640 does not turn OFF when REMOTE

input voltage goes to 0 Volts.

5. PA640 becomes very warm, shuts OFF, but

does not come back ON automatically.

PROBABLE CAUSE AND SOLUTION

• Check line cord for good contact in a live AC outlet.

• If REMOTE ON/OFF jack is used, be sure applied voltage is

between +4V and +30V DC with proper polarity. See Fig. 8.

• BRIDGED/STEREO switch is incorrectly set to BRIDGED

position. Set to STEREO position. See Fig. 6.

• Speaker load impedance is less than 2-Ohms for Stereo mode or

less than 4-Ohms for Bridged mode. Make changes in speakers

as necessary to obtain higher impedance.

• Be sure that the POWER switch (item 8, fig. 3) is set to the

MANUAL OFF (REMOTE ON/OFF) position.

• Set POWER switch (item 8, Fig. 3) to MANUAL OFF (OUT)

position for 15 seconds, then back ON. If REMOTE ON/OFF

jack is used, unplug for 15 seconds, then replug.

REMOTE

ON/OFF

POWER

4V to 30V DC Adapter

plugged into a Switched

AC Outlet on Preamplifier

Preamplifier

3.5mm Plug.

Tip

must

positive (+).

PA640

SYLMAR, CA MADE IN U.S.A.

PA640

SIX CHANNEL POWER AMPLIFIER

Fig. 8 REMOTE ON/OFF Jack Connections

INSTALLATION (cont'd)

Connecting the REMOTE ON/OFF Jack

As mentioned under "PA640 PANEL DESCRIPTIONS", the REMOTE ON/OFF jack allows the power to

thePA640tobeturnedONandOFFbyaremotelyappliedDCVoltage. Figs.8and9aretypicalapplications

using this feature.

Fig. 8 illustrates how a PA640 can be switched ON and OFF via the switched AC outlet on the rear of a

preamplifier. WhenthepreamplifierPower Switch is switched ON, power is applied to the DC adapter which

in turn applies 4V to 30V DC to the PA640, switching it ON. Similarly, when the preamplifier is switched

OFF, the DC voltage to the PA640 is removed, turning it OFF.

Fig. 9 shows two PA640's in a typical multi-room system with a Xantech ZPR68 6-zone preamp. In this

case, the common +12V CO (control output) from the ZPR68 is used to remotely turn the PA640 ON/OFF.

When any one of the zones is turned on, the common +12V CO goes high, turning each of the PA640's ON.

Similarly, when the last zone is turned OFF, the +12V CO drops to 0V and turns the PA640's OFF.

TROUBLE SHOOTING

If you encounter a problem, please review the items in the following list. Be sure, in addition, to check other

system components, such as preamplifiers, CD players, speakers, speaker wiring, etc., that may be at fault.

PA640



Fig. 9 A Multi-Zone System Using Two PA640's

12VDC

CONFIRM

IR IN

POWER

+12V

IR OUT

GMM1A



CURRENT

SENSOR

THRESHOLD

STATUS

IR OUT

GCM1

CURRENT

SENSOR

THRESHOLD

STATUS

IR OUT

GCM1

CURRENT

SENSOR

THRESHOLD

STATUS

IR OUT

GCM1

CURRENT

SENSOR

THRESHOLD

STATUS

IR OUT

GCM1

CURRENT

SENSOR

THRESHOLD

STATUS

IR OUT

GCM1

CURRENT

SENSOR

THRESHOLD

STATUS

IR OUT

GCM1

VIDEO IN

VIDEO OUT

STATUS

IR OUT

GVM1

VIDEO IN

VIDEO OUT

STATUS

IR OUT

GVM1

LD Player

DVD Player

AM/FM Tuner

COMMON IR OUTPUTS

COMMON IR INDICATOR

VIDEO

AUDIO

VIDEO

AUDIO

ZONE CONTROL - IR INPUTS

12345678

COMMON IR LEVEL

SOURCE INPUTS ZONE OUTPUTS

1 2 3 4 5 6 7 8

ZONE IR OUTPUTS

12345678

123456

SYLMAR, CA • MADE IN U.S.A.

POWER

IR CONFIRM

POWER

SUPPLY

ZPR68-10

SIX ZONE EIGHT SOURCE REMOTE PREAMP

+12V

GND

STATUS

IR IN

COM

PORT

Plug SAT Rec'rs into

120 VAC (u

nswitch

ed)

ZPR68-10 Power

Supply

RF Signal

IR Signal

Modulator

(2-Input)

ZONE 4

XANTECH

S-62/64/66

Wall Speakers

480-00

Dinky Link™

IR Receiver

ZONE 3

MONITOR

ZONE 5

ZONE 6

XANTECH

S-62/64/66

Wall Speakers

ZONE 1

ZONE 2

780-80

"J" Box

IR Receiver

MONITOR

SOURCE COMPONENTS

A/V

Patch Cords

A/V

Patch Cords

ZONE AMPLIFIERS - MODEL PA640 (2)

Remote

ON/OFF Remote

ON/OFF

RF IN

VIDEO IN

MONITOR

VIDEO IN

ANT. or

Cable

4-Conductor

Home Runs.

CAUTION

See

"POWER SUPPLY

CONSIDERATIONS"

in ZPR68-10

Manual, page 10.

Base

Band

Video.

Use

RG-6

Coax

2-Way

Combiner

Amp

RF (TV)

Signal.

Use

RG-6

Coax

2-Conductor

Mini-Plug-

to-Stripped

Ends. Use

6015900.

Smart

Pad2™Smart

Pad2™

To Speakers in Rooms

ZONE 4 ZONE 5 ZONE 6

To Speakers in Rooms

ZONE 1 ZONE 2 ZONE 3

VCR #2

SAT Rec'r #1 VLR

SAT Rec'r #2 VLR

VLR

To 120 V AC

(unswitched)

782-00

Power

Supply

Plug

ALL

Current

SENSORs into 120 V

AC (unswitched).

VCR #1

VCR #1 Pwr

Current

SENSOR

To Sat #1

Video OUT

Current

SENSOR

VCR #2 Pwr

Current

SENSOR

LD Pwr

Current

SENSOR

Current

SENSOR

DVD Pwr

Tuner Pwr

CD Pwr

Current

SENSOR

Gate

SAT #1 Emitter

SAT #2 Emitter

IR OUT,

Gate #1

IR OUT,

Gate #2

IR OUT,

Gate #3

IR OUT,

Gate #4

VLR

IR OUT,

Gate #5

VLR

IR OUT,

Gate #6

IR OUT,

Gate #7

CD Changer

IR OUT,

Gate #8

VCR #1 Emitter

VCR #2 Emitter

LD Emitter

DVD Emitter

CD Emitter

AM/FM Tuner Emitter

GATEKEEP-IR

Smart

Pad2™

To Sat #2

Video OUT

Loop video thru to

ZPR68-10 Video Inputs

(if necessary).

3.5-to-3.5mm

Mono Mini Plug

cable.

Use part

#6017400.

Smart

Pad2™

Smart

Pad2™

120V AC

(Unswitched)

120V AC

(Unswitched)

283M

Blink-IR™

Mouse

Emitter (8)

PA640

11

Amplifiers & Preamplifiers

PA640

CH1

Input

CH2

Input

STEREO

BRIDGED

INVERTER

–

Feedback

DISCRETE DRIVER & OUTPUT STAGES

Feedback

Protection

Mute

and

Protection

PROTECTION

LED

CH2

CH1

BRIDGED

Power Mute

120V AC

60 Hz

Fuse

5A 220V AC

Power

Supply

PWM

REMOTE

ON/OFF

MANUAL OFF

(Remote ON/OFF)

MANUAL

POWER ON/OFF LED

Opto-

Isolator

–

INPUT

LEVEL

Fig. 10 Block Diagram (Channels 1 and 2 only)

SPECIFICATIONS

Number of Channels ..................................................................................................................................................... 6

Power Output ....

Rated Continuous Power, Each Channel: ............................................. 8 Ohms .......................... 40 Watts

All 6 channels simultaneously driven,

20 Hz to 20 kHz, at rated THD.

Short Term Continuous, Each Channel: ....................... 8 Ohms ................................................... > 50 Watts

(2 channels driven, 1 kHz, at rated THD) 4 Ohms ................................................... > 70 Watts

Bridged Power Output: ................................................. 8 Ohms ................................................. > 140 Watts

(Short Term Continuous, one pair driven @ 1 kHz, at rated THD)

Rated THD ........................................................................................................................................................ < 0.08 %

Damping Factor (@ 50 Hz, 1/2 rated power) ...................................................................................................... > 100

S/N Ratio, A Weighted (ref. to rated power) ................................................................................................... > 100 dB

Frequency Response (@ 1 Watt, ±3 dB) ..............................................................................................8 Hz to 100 kHz

Input Sensitivity ....................................................................... Input Gain Position

Max. ................................................................. 0.2 V

Mid. .................................................................. 1.0 V

Min. .................................................................. 3.3 V

Input Impedance ............................................................................................................................................. 50 kOhms

Power Supply .........................................................................................................................................120 VAC, 60 Hz

Power Consumption .................................................................. No Signal ....................................... 35 Watts (0.29 A)

6 chan @ 1/10 rated power .......... 265 Watts (2.2 A)

6 chan @ rated power ................... 640 Watts (5.3 A)

3 chan Bridged @ 14 watts/chan ... 440 Watts (3.7 A)

Remote ON/OFF Voltage ...................................................................................................................... +4V to +30V DC

Line Fuse Rating ..........................................................................................................................................5A 220V AC

Dimensions ......................................................................................................................... 13.5" L x 12.25" W x 3.6" H

Weight ............................................................................................................................................................... 14.3 lbs

3-24-99

PA640

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