Earthquake Sound Pa 600 Users Manual PA600

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Nova

Power From The Heavens PA-600

Professional Amplifier

Operation Manual

& Technical Guide

Earthquake Sound Corporation. 2727 Mc Cone Avenue, Hayward, CA 94545. www.earthquakesound.com.

POWER

PROTECT PEAK SIGNAL

CH

1

LEVEL

MIN MAX

MONO

CH

2

LEVEL

SIGNAL PEAK PROTECT

MIN MAX

CH 2 CH 1

SPEAKER OUTPUT

+ CH 1 -

120W/8 Ohm

200W/4 Ohm

+ CH 2 -

120W/8 Ohm

200W/4 Ohm

FUSE

T3.15A~230V/50Hz

T6.3A~115V/60Hz 230VAC,50Hz

115VAC,60Hz

750W

VOLTAGE SELECT

115V 230V

CH 2 CH 1

CH 2

CH 1

2 C H A N N E L S / 6 0 0 W A T T S P R O F E S S I O N A L B R I D G E A B L E A M P L I F I E R

M A N U F A C T U R E D B Y E A R T H Q U A K E S O U N D C O R P O R A T I O N. BRIDGED(MONO)

400W/8 Ohm

LINE LEVEL INPUT

Earthquake Sound Corporation specializes in manufacturing high end Home and Car

audio products ranging from the smallest driver to the loudest subwoofer system. In its

dedication to excellence, Earthquake has maintained extensive programs in research and

development to provide you with the highest quality audio products.

This owners manual is designed to better acquaint you with the PA-600 pro-

amplifier. It is imperative that you read this manual in its entirety. EARTHQUAKE

technicians and staff are looking forward to answer any questions you might have, please

call (1-800-576-7944).

channel @ 4 ohms stereo mode or 110 watts per channel @ 8 ohms (stereo mode); 560 watts

@ 4 ohms, 380 watts @ 8 ohms (bridged mono mode). Several "professional" features, such

as 1/4" and XLR input jacks with electronically balanced Low or Medium impedance

operation have been built into the amplifier. Limiting circuitry with LED indicators

constantly monitors the output level of each channel and provides protection from clipping,

thus preventing the generation of speaker-damaging square waves. A built-in protection

The PA-600 is a ruggedly constructed high quality professional amplifier. The amplifier circuit protects the amplifier from overloads, short circuits, and overheating. In addition,

mounts into a standard 19" rack, requiring only two rack spaces (3-1/2 inches, vertically). each channel features a Signal LED to assist in hookup and troubleshooting and a Fault

Two automatic variable-speed internal cooling fans use the sides, rear and the front of the LED which indicates when the internal protection circuitry is activated.

amplifier - not the top and bottom - for its air intake and exhaust, allowing you to stack

multiple amplifier closer together in a rack mount situation. Additional rack support holes

have been provided along the rear of the amplifier for the most secure installation

possible. (Use of these additional supports is strongly recommended.)

The PA-600 produce up to 300 watts of power per channel @ 2 ohms, 200 watts per

CAUTION: the PA-600 is capable of generating high sound

pressure levels. You should exercise caution when operating this

amplifier system. Long term exposures to high levels of sound

pressure will cause permanent damage to your hearing. Sound

pressure levels exceeding 85dB can be dangerous with constant

exposure. Set your audio system to a comfortable loudness level.

Earthquake Sound Corporation does not assume liability for

damages resulting from the direct use of the PA-600 , and urges

users to play the PA-600 in moderate levels.

DEAR VALUED CUSTOMER.

THE CHART (ON THE SIDE) SHOWS THE U.S. GOVERNMENTS

OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA)

REGULATIONS WHICH WERE IN EFFECT AT THE TIME OF THIS

PUBLICATION FOR PERMISSIBLE NOISE EXPOSURE,

PER 29CFR1910.95, TABLE G-16.

97

100

102

105

110

115

3

2

1 - 1 1/2

1

1/2

1/4 or less

SOUND LEVEL

DBA

90

92

95

8

6

4

DURATION

IN HOURS

-3-

Specifications & features are subject to change without notice. www.earthquakesound.com

POWER

PROTECT PEAK SIGNAL

CH

1

LEVEL

MIN MAX

MONO

CH

2

LEVEL

SIGNAL PEAK PROTECT

MIN MAX

Specifications & features are subject to change without notice. www.earthquakesound.com

PA-600 AMPLIFIER FRONT & REAR PANELS FUNCTIONS/CONNECTION.

5 64

231

6 5

7 10 14 14 158

11 1112 12 13 13 16 1718

7

1. POWER SWITCH: 4. POWER INDICATOR LED:

This switch turns the amplifier on in the up position ("I" pressed in ) and off in the down This Led illuminates when AC power is applied by means of the Power Switch (#1)

position. When AC power is applied to the amplifier, the power indicator led (#4)

illuminates. 5. PROTECT INDICATOR LED'S:

These LED's illuminate whenever the internal protection relay for the channel is activated.

2. LEVEL CONTROL (CH-1) & MONO: The protection relay is activated for a short period upon initial turn-on and at turn-off to

This rotary potentiometer controls the sensitivity or gain of (CH-1). Set them to the level prevent transient "spikes" from being reproduced through your speakers. A protect condition

needed for the desired output. When amplifier is set in the bridge mono mode, only this level is also indicated if the unit gets too hot, or if DC voltages are present at the output. During

control (CH-1) is active in this mode. thermal protection, both channels are shut down. In the event of DC voltage on the output,

only the affected channel will be disconnected. The circuitry associated with the LED

indicators provides valuable protection for both the amplifier and your speakers.

3. LEVEL CONTROL CH2:

This rotary potentiometer controls the sensitivity or gain of CH2. Set them to the level

needed for the desired output. When amplifier is set in the bridge mono mode, this level

control is not active.

-4-

2 C H A N N E L S / 6 0 0 W A T T S P R O F E S S I O N A L B R I D G E A B L E A M P L I F I E R

9

PA-600 AMPLIFIER FRONT & REAR PANELS FUNCTIONS/CONNECTION.

These jacks accept line level signal sources by means of cables fitted with standard ¼” phone

6. SIGNAL INDICATOR LEDS: plugs. Low or medium impedance balanced or unbalanced sources are acceptable for these

These LED's illuminate when signal is detected at the amplifier's output terminals, inputs. Balanced inputs are wired as follows: Tip = Signal (+), Ring = Signal (-), Sleeve

providing accurate visual confirmation of signal presence, which is helpful in hookup, and = Ground. Unbalanced inputs may be wired: Tip = Signal, Sleeve = Ground, using a

troubleshooting. The output signal must be at least 5% of the amplifier's full rated output to “mono” plug.

make the LED's illuminate. NOTE: The input channel circuitry requires a line level signal of 1.1V RMS or greater to

drive the amplifier to full output.

7. COOLING FAN EXHAUST VENT:

The PA 600 employs a pair of variable-speed internal cooling fans to draw air through the 13. BINDING POST OUTPUT:

unit and keep it running cool even under extreme operating conditions. The air is drawn in These output connectors offer an excellent method of connecting the amplifier to your

through the unit's side and rear intake vents and is forced out through the front panel speakers using cables terminated with spade lugs, banana plugs, or bare wire. When using

exhaust vent. This method of cooling draws air out from the interior of the rack and provides the amplifier in the Mono Mode, you must use either the two red binding posts or the

more efficient cooling methods, which bring air in from the front and exhaust it through the BIAMP/MONO (middle) Phone jack (#13). The Binding Posts are wired in parallel with

back. Keep these vents clear and free from obstruction at all times to insure proper cooling. the Phone Jacks.

8. STEREO / MONO SWITCH: 14. SPEAKER OUT JACKS:

This switch connects the channels to work together for more power output. In the These heavy-duty output jacks are to be used to connect the amplifier to your speakers using

“STEREO” position the amplifier is in the STEREO MODE; with the switch in “MONO” cables terminated with Phone type plugs. These jacks are wired in parallel with the

MODE the amplifier is in the Bridge MONO MODE. In the Bridge Mono Mode, connect BINDING POSTS: channel 1 and 2 Phone Jacks are wired with pin#1(+) positive or “in

input to Channel 1(Channel 2's inputs are disconnected.) Both amp channels are internally phase”, and pin#1(-) ground or “out of phase" (wired 1+ 1-). The MONO /BIAMP jack has

bridged together to create a single-channel amplifier of increased output power. Use the two channel 1 wired to 1+ and 2+, with 1+ "in phase”.

red BINDING POSTS (labeled ”Mono/Biamp”) or pins 1+/2+ of the BIAMP/MONO

(middle) Phone jack. 15. VOLTAGE SELECTOR:

9. AUTO ON / OFF: Selection of AC 115V/60Hz or AC 230V/50Hz voltage source. Before connecting the power

The new auto sensing circuitry immediately senses signal as it reaches the amplifier, when plug to the wall AC outlet, make sure your local power line AC voltage matches the voltage

the music stops it will automatically fall asleep. While in sleep mode the PA-600 consumes setting of amplifier.

less energy than commonly sold Pro Amps. 16. FUSE: Use only the type of fuse specified on the back of amplifier.

10. LIMIT SWITCH:

Switch to “ON” position to activate the limit circuit to prevent the amplifier from clipping. 17. POWER CORD:

Signal indicator LED's will all be illuminated whenever the input signal attempts to This heavy duty power cord must be connected to a grounded Ac outlet of the proper voltage

overdrive the amplifier's output section. Not only does clipping produce harsh sounding for the amplifier to operate. TO REDUCE THE RISK OF ELECTREC SHOCK, DO

distortion, it is also capable of damaging speaker components-particularly high frequency NOT REMOVE OR BYPASS THE GROUND PRONG OF THE POWER CORD.

drivers.

18. RCA INPUT: this is the simplest / most common way to drive an audio signal into the

11. XLR BALANCED INPUT JACKS: PA-600 amplifier.

These jacks will accept any balanced or unbalanced low or medium impedence line level

source by means of a three-pin XLR plug. The wiring for the plug is as follows: :

Pin#1=Ground, Ultra sensitive input pre-amp stage circuitry. Some products on the market can produce

Pin#2=Signal (+), enough voltage to drive an amp but most don't. Earthquake increased sensitivity by giving

Pin#3= Signal (-). you more output with less input signal. This new circuitry will allow you to drive the amp to

full stage with as little as 60milivolt.

12. ¼” PHONE JACK INPUTS:

NEW

NEW

-5-

Specifications & features are subject to change without notice. www.earthquakesound.com

PA-600 AMPLIFIER CONNECTION (STEREO & MONO)

From audio source

From audio source

From audio source

2 to 8 ohms range

NOTE: Use both

Red Terminals ONLY

in Mono Mode

2 to 8 ohms range

4 to 8 ohms range

The PA-600 can be used in Stereo Mode as

two separate power amplifiers, each capable

of driving loads down to 2 ohms. Each

channel operates independently and has its

own input connectors, sensitivity level

controls, signal indicator LEDS, limiter

circuitry, fault protection circuitry, power

amp, and speaker outputs.

In Stereo Mode, the STEREO/MONO

SWITCHE must be in the "STEREO"

position. Either the binding posts or the

Phone jacks may be used to connect the

amplifier to the speakers. Both inputs must be

active (plugged) in stereo mode; either XLR

input, RCA input, or the Phone Jack input

can be used.

The two internal power amplifiers may be

bridged together to form a single, higher-

powered amp. In the Bridged Mono Mode,

the amplifier uses channel #1 INPUT jacks

and LEVEL CONTROL; channel #2 inputs

are disconnected. Channel #2 power amp

receives its signal from channel #1 input

This signal is connected to channel 2 prior to

its Limiter, so each channel is independently

protected. The STEREO/MONO SWITCH

must be in the MONO position. Because both

channels are being used (bridged in series),

the minimum load impedance is 4 ohms.

The RED binding post terminals (ch

1="+", ch 2=" + ") or the middle Phone jack

(ch #1) must be used to connect the amplifier

to the speakers.

-6-

Specifications & features are subject to change without notice. www.earthquakesound.com

PA-600 AMPLIFIER OPERATION

Stereo Mode:

Bridge Mono Mode:

The following diagrams are excerpts from the

system block diagrams and are intended to

provide a simplified view of the operating modes

of the amplifier.

BRIDGE MONO SWITCH: This switch connects

the channels to work together for more power

output. With the switch in "MONO" Mode the

amplifier is in the Bridge Mono Mode. In the

Bridge Mono Mode, connect input to Channel 1

(Channel 2's inputs are disconnected). Both amp

channel are internally bridged together to create a

single-channel amplifier of increased output power.

Use the two red BINDING POSTS (labeled

"Mono/Biamp") or pins 1+/2+ of the

BIAMP/MONO (middle) Phone jack.

-7-

CH 1

LEVEL

CH 1

LEVEL

CH 1

INPUTS

CH 1

INPUTS

RING

RING

TIP

TIP

2

2

3

3

1

1

PARALLEL

MONO

PARALLEL

MONO

CH 1

AMP

CH 1

AMP

CH 2 OUTPUTS

CH 2 OUTPUTS

CH 1 OUTPUTS

CH 1 OUTPUTS

+

+

+

+

1+

1+

1+

1+

2-

2-

2-

2-

CH 2

INPUTS

CH 2

INPUTS

RING

RCA#2

RING

TIP

TIP

2

2

3

3

1

1

BRIDGE

MONO

BRIDGE

MONO

CH 2

LEVEL

CH 2

LEVEL

STEREO

STEREO

STEREO

STEREO

CH 2

AMP

CH 2

AMP

BRIDGE

MONO

BRIDGE

MONO

BRIDGE

MONO

BRIDGE

MONO

STEREO

STEREO

RCA#1

RCA#2

RCA#1

Specifications & features are subject to change without notice. www.earthquakesound.com

17.06"

433.3mm

19.00"

482.6mm

3.49"

88.8mm

1.85"

46.9mm

INDICATES CENTER OF GRAVITY

1.54"

39.1mm

15.43"

392mm

PA-600 AMPLIFIER INSTALLATION & MOUNTING

The PA-600 is specifically designed to be rack mounted, either as a permanent

fixture or in a "mobile" rack. As with any large, heavy object, a proper

installation could mean the difference between success and disaster. The front of

the unit is designed to attach to standard rack rails. The four outermost holes

correspond to the screw on standard rack rails (2 rack spaces in height). Use only

10-32 threaded rack screws with large heads (such as a truss heads). The use of

nylon rack mount washers between the screw heads and the faceplate will keep

the faceplate from being scratched. Due to the depth and weight of the PA-600 a

set of rear support holes have been provided. It is highly recommended that the

installer use these holes to support the rear of the amplifier. A support rail, shelf,

or bracket can be attached to the amplifier and then to the installation

enclosure. One thought to keep in mind when considering the related hardware

for this: more is better when it comes to a secure installation - a little extra time

spent on installing a heavy object more than offsets the possible losses that

could be incurred if the object were to be damaged due to inadequate support.

The dimensions below are provided to assist you and/or your installation

engineer in mounting the amplifier securely.

-8-

Specifications & features are subject to change without notice. www.earthquakesound.com

POWER OUTPUT

FREQUENCY RESPONSE

TOTAL HARMONIC DISTORTION

SLEW RATE

SIGNAL TO NOISE RATIO

LOAD IMPEDANCE

DAMPING FACTOR

CONTROLS

INPUT CONNECTIONS

OUTPUT CONNECTIONS

MODE SWITCHES

PROTECTION CIRCUITRY

COOLING

POWER REQUIREMENTS

SIZE AND WEIGHT

2 x 120 watts RMS @ 8 ohms 20Hz-20kHz (stereo mode)

2 x 200 watts RMS @ 4 ohms 20Hz-20kHz (stereo mode)

2 x 300 watts RMS @ 2 ohms 1kHz (stereo mode)

380 watts RMS @ 8 ohms 20Hz-20kHz (mono mode)

600 watts RMS @ 4 ohms 1kHz (mono mode)

+0/-0.5dB, 20Hz-20kHz

<0.05%, 20Hz-20kHz

40 volts / microsecond

> 89dB ref 200 watts /4 ohms (20kHz equivalent bandwidth)

2 ohms or greater in stereo mode

4 ohms or greater in mono mode

Typical 300 (1kHz, 8 ohms)

Two Front panel level setting knobs, one power switch

XLR, RCA and 1/4" phone (tip/ring/sleeve), one each channel

Binding posts each channel, Phone jacks(one each channel)

Mono Bridge mode select, Limiter "on"/"off"

Short circuit, open circuit, RF burnout, over temp, speaker protection relays,

turn on/off transient protection, DC protection, limiter circuitry

Variable speed forced air fan cooling rear/side intake, front exhaust

110 VAC 60Hz, 750VA

100-120 VAC 50/60Hz, 750VA

220-240 VAC 50/60Hz, 750VA

19" W x 3.49" H x 15.43" D; 29 lbs.

PA-600 AMPLIFIER SPECIFICATIONS

482.6mm W x 88.8mm H x 392mm D; 13.2 Kg.

-9-

Specifications & features are subject to change without notice. www.earthquakesound.com

Earthquake warrants the original purchaser that all Factory Sealed New Audio - Subsequent damage to other products.

Products be free from defects in material and workmanship, under normal and proper use, A warranty claim will not be valid if the warranty registration card is not properly filled &

for a period of five (5) years from the date of purchase (as shown on the original bill of sale returned to Earthquake with a copy of the sales invoice.

with serial number affixed/written on it). The five (5) years warranty period is valid only if

the product is properly installed by an Earthquake authorized party, and the warranty (E) Service Request:

registration card is properly filled out and sent to Earthquake Sound Corporation. If the To receive product/s service, contact Earthquake service department at (510) 732-

product is installed by a non-authorized party, a ninety (90) days warranty period applies. 1000 and request an RMA number (Return Material Authorization), items shipped without

a valid RMA number will be refused. Make sure you provide us with your complete/correct

(A) Five (5) years limited warranty plan coverage guidelines: shipping address, a valid phone number, and a brief description of the problem you are

- First year: Earthquake pays for labor, parts, and ground freight (only in U S experiencing with the product. In most cases, our technicians might be able to resolve the

mainland, not including Alaska and Hawaii) back to customer. problem over the phone, thus eliminating the need to ship the product.

- Second year: Earthquake pays for labor and parts only, customer must pay freight

both ways. (F) Shipping Instructions:

- Third, fourth & fifth year: Earthquake pays labor only. Customer must pay for Product/s must be packaged in its original protective boxe/s to minimize transport

parts and freight both ways. damage. Shipper claims regarding items damaged in transit must be presented to carrier.

Earthquake Sound Corporation reserves the right to refuse product improperly packed.

(B) Warning: Original bill of sale must accompany product returned for service. We encourage you to

Products (sent for repair) that are tested by Earthquake technicians and deemed include with the package a written description of the problem. Ship product to: Earthquake

to have no problem, will not be covered by the five (5) years limited warranty. Customer will Sound Corp. 2727 Mc Cone Avenue, Hayward, CA 94545. Ph (510) 732-1000. You are

be charged a minimum of one (1) hour of labor (ongoing rates) plus shipping charges back to responsible for the cost of shipping the product to Earthquake Sound Corporation.

customer. (G) Disputes Resolution:

(C) Earthquake agrees to repair or replace - at our option - all such defective products/parts All disputes - between clients and Earthquake Sound Corporation - resulting from

subject to the following provisions: the five (5) years limited warranty policy must be resolved according to the laws &

- Defective products/parts have not been altered or repaired by other than a n regulations of the county of Alameda -California.

Earthquake factory approved technician.

- Products/parts are not subjected to negligence, misuse, improper use, or accident,

damaged by improper line voltage, used with incompatible products, or have its

serial number or any part of it altered, defaced or removed, or have been used in

any way that is contrary to Earthquake's written instructions.

(D) Warranty Limitations:

Earthquake warranty does not cover products that have been modified or abused. Including

but not limited to the following:

- Damages to speaker cabinet and cabinet finish due to misuse, abuse, or u s e

of improper use of cleaning materials/methods.

- Bent speaker frame, broken speaker connectors, holes in speaker cone, surround &

dust cap, burnt speaker voice coil.

- Fading, deterioration of speaker components & finish due to improper exposure to

elements.

- Bent amplifier casing, damaged finish on the casing due to abuse, misuse, or

improper use of cleaning material.

- Burnt tracers on PCB.

- Product/part damaged due to poor packaging or abusive shipping conditions.

5-YEAR LIMITED WARRANTY

-10-

Specifications & features are subject to change without notice. www.earthquakesound.com

WARRANTY REGISTRATION CARD

Cut along dotted line & return to Earthquake Sound Corporation. 2727 Mc Cone Avenue, Hayward , CA 94545.

Required Information:

First name:___________________________________________________________________________

Last name:___________________________________________________________________________

Street address:________________________________________________________________________

____________________________________________________________________________________

City:_________________________________________State:_______________ Zip:______________

Phone number: (_______)______________________________________________________________

Model number:_______________________________________________________________________

Date of purchase:_____________________________________________________________________

Purchase price:_______________________________________________________________________

Serial number: _______________________________________________________________________

Dealer name:_________________________________________________________________________

Dealer address:_______________________________________________________________________

_____________________________________________________________________________________

City:______________________________________ State:________________ Zip:_________________

Signature:____________________________________________________ Date:_________________

Your Comments: ______________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

LIMITED

5

YEARS

WARRANTY

(Valid In U.S. Mainland Only- Excluding Alaska & Hawaii)

Apply Serial Number Here

To: Earthquake Sound Corporation.

2727 Mc Cone Avenue,

Hayward, California 94545.

Ph (510) 732-1000.

Place

Stamp

Here

From: _______________________

____________________________

____________________________

____________________________

LIMITED

5

YEARS

WARRANTY

(Valid In U.S. Mainland Only- Excluding Alaska & Hawaii)