QA3004 1100W PER CHANNEL STEREO AMP POWER AMPLIFIER

DESCRIPTION

2U AMP WITH CROSSOVER / FILTERS

2 x 575w at 4 ohms, the Quest QA1004 looks good and powers up even better. With a couple of extra treats on board, like the low pass (80hz, 110hz) and high pass (35hz, 80hz) filters.

Quest QA Series power amplifies are built to work hard inthe tough environment of pro audio. Industrial spec multi-speed fans and generous heat sinks will keep the output stage cool even if the amplifier is installed in a dusty and poorly ventilated area.

The sonically superior output stage is composed of a generous abundance of output devices for greater electronic stability and sonic fidelity.

QA series amplifiers are manufactured to a standard accepted as desirable practice for a concert standard power amplifier.

Heavy gauge welded 16-gauge steel chassis with vibration proof fittings, and an emphasis on over-engineering, guarantees years of trouble-free service in the most demanding environments.

Quest set about a design and layout for easy service, noteasy manufacture. A minimum of disassembly is required for testing and maintenance meaning lower operating costs and longer amplifier life

A DESIGN PEDIGREE THAT SETS A NEW STANDARDS IN QUALITY AND VALUE

The new series QA amplifier range has been designed and engineered to a standard that takes it well into the upper register of high fidelity pro audio amplifiers. Like the models before it, thousands of hours of research and real world testing ensure the QA range will live
long in the tough world of permanent installation and touring.
FEATURES THAT PROFESSIONALS DEMAND

The word ?professional? gets thrown around a lot these days. There is a base set of standards, without which no amplifier should be called ?professional.? Professionals look beyond a paint job and marketing spin to the design engineering and build quality.

This is where the QA series sells itself. Power for Today?s Systems To suit the needs of today?s power hungry systems, the QA Series offers a wide choice of power levels.Despite their compact size, the QA Series features preciselydesigned and optimized power supplies, which are free of theswitching distortion associated with many multi-stage circuits used in other compact amplifiers.

ENGINEERED FOR A HARD LIFE
QA series amplifies are built to work hard in the tough environment of pro audio. Industrial spec multi-speed fans and generous heat sinks will keep the output stage cool whendriven hard.

Service and maintenance is easy as the internal architecture is laid out for easy access by a qualified technician

PROTECT YOUR SPEAKERS
Clean and stable power is the secret to long speaker life.A high current power supply and the generous quantity of high head room output devices are behind the exceptional bass response of the QA series amplifiers.

If a possibility of system clipping exists, independent switch-able limiters will limit both PEAK and RMS power to prevent distortion of the output stage. It will not seriously affect audio quality but it will help protect yourspeakers.

FEATURES:
Input Stage: Pro active protection senses stages of system function to safeguard your investment both on turn onand while under operation. Silent switch on/off circuitry reduces potential speaker damage in the event of intermittent power.
Power supply: The high current power supply is manufactured to function reliably at high temperatures and well exceeds industry standards. This results in smooth bassresponse and considerable dynamic headroom.
Industrial Spec Fans: Dual heavy duty cooling fans guarantee long life of all electronic components.
Input Connection: XLR parallel male and female input connections calibrated for most pro spec system controllers and electronic cross-overs. features
Speakon Connections: International AES standard Speakon connectors wired for two channel and Bridge mono operation simplify speaker connections.
Limiter: A switchable high speed limiter acts as a final speaker protection but can be disconnected where sensing speaker system controllers are required.
Built in switchable X-overs: High Amplification and low pass filters on each channel make the versatile QA series even more flexible with a sub-mid/high frequency dividing network.
Selectable Gain settings: Adjustable input switching for 0.775V, 32 dB or 26 dB make system calibration easy.
Easy access air filters: User serviceable air filters are easy to maintain for trouble free operation.

Quest QA Series power amplifies are built to work hard inthe tough environment of pro audio. Industrial spec multi-speed fans and generous heat sinks will keep the output stage cool even if the amplifier is installed in a dusty and poorly ventilated area.

The sonically superior output stage is composed of a generous abundance of output devices for greater electronic stability and sonic fidelity.

QA series amplifiers are manufactured to a standard accepted as desirable practice for a concert standard power amplifier.

Heavy gauge welded 16-gauge steel chassis with vibration proof fittings, and an emphasis on over-engineering, guarantees years of trouble-free service in the most demanding environments.

Quest set about a design and layout for easy service, noteasy manufacture. A minimum of disassembly is required for testing and maintenance meaning lower operating costs and longer amplifier life

A DESIGN PEDIGREE THAT SETS A NEW STANDARDS IN QUALITY AND VALUE

The new series QA amplifier range has been designed and engineered to a standard that takes it well into the upper register of high fidelity pro audio amplifiers. Like the models before it, thousands of hours of research and real world testing ensure the QA range will live
long in the tough world of permanent installation and touring.
FEATURES THAT PROFESSIONALS DEMAND

The word 'professional' gets thrown around a lot these days. There is a base set of standards, without which no amplifier should be called 'professional.' Professionals look beyond a paint job and marketing spin to the design engineering and build quality.

This is where the QA series sells itself. Power for Today's Systems To suit the needs of today's power hungry systems, the QA Series offers a wide choice of power levels.Despite their compact size, the QA Series features preciselydesigned and optimized power supplies, which are free of theswitching distortion associated with many multi-stage circuits used in other compact amplifiers.

ENGINEERED FOR A HARD LIFE

QA series amplifies are built to work hard in the tough environment of pro audio. Industrial spec multi-speed fans and generous heat sinks will keep the output stage cool whendriven hard.

Service and maintenance is easy as the internal architecture is laid out for easy access by a qualified technician

PROTECT YOUR SPEAKERS

Clean and stable power is the secret to long speaker life. A high current power supply and the generous quantity of high head room output devices are behind the exceptional bass response of the QA series amplifiers.

If a possibility of system clipping exists, independent switch-able limiters will limit both PEAK and RMS power to prevent distortion of the output stage. It will not seriously affect audio quality but it will help protect yourspeakers.

FEATURES:
Input Stage:
Pro active protection senses stages of system function to safeguard your investment both on turn on and while under operation. Silent switch on/off circuitry reduces potential speaker damage in the event of intermittent power.
Power supply:
The high current power supply is manufactured to function reliably at high temperatures and well exceeds industry standards. This results in smooth bass response andconsiderable dynamic headroom.
Industrial Spec Fans:
Dual heavy duty cooling fans guarantee long life of all electronic components.
Input Connection:
XLR parallel male and female input connections calibrated for most pro spec system controllers and electronic cross-overs. features
Speakon Connections:
International AES standard Speakon connectors wired for two channel and Bridge mono operation simplify speaker connections.
Limiter:
A switchable high speed limiter acts as a final speaker protection but can be disconnected where sensing speaker system controllers are required.
Built in switchable X-overs:
High Amplification and low pass filters on each channel make the versatile QA series even more flexible witha sub-mid/high frequency dividing network.
Selectable Gain settings:
Adjustable input switching for 0.775V, 32 dB or 26dB make system calibration easy.
Easy access air filters:
User serviceable air filters are easy to maintain for trouble free operation
 
SPECIFICATIONS:
 
QA3004 STEREO POWER AMP
QA4004 STEREO POWERAMP
 
 

2x 1100-w at 4 OHMS 2x 1700-w at 4OHM    

Rated Power:
Bridge Mode 4O:
2250-W @ 1kHz at

Rated Power
(2x 8O):
660-W per channel @ 1kHz at

Rated Power:
(2x 4O):
1100-W per channel@ 1kHz at

T.H.D:
per channel from 20 HZ to 20kHz  

Minimum Load Impedeance:
2O - Audio signal / 4O - Signal wave

Phase Response:
5 to -15 from 20 Hz to20kHz 20 to -25 from 20 Hz to 20kHz

Input Impedance:
20 kO, balanced; 10 kO, unbalanced

Cooling:
Two temperature dependant variable speed 80mm ( QA3004 ) and 120mm (QA4004 )high-output DC fans  

Controls:
Two front panel attenuators, rear panel mode switch and gain select switch

High Pass:
Linkwitz-Reily (24 dB/Octave): Off/35/80 Hz

Low Pass:
Linkwitz-Reily (24 dB/Octave): Off/80/110Hz

Voltage Gain @
0.775-V:
35 dB or 29 dB 38 dB or 32 dB    

Crosstalk:
>-60 dB @ 1kHz at rated power @ 8O

Hum and Noise:
>-107 dB, "A" weighted referenced to rated power @ 8O  

Slew Rate:
>40V/us ( QA3004 ) >44V/us 9QA4004 )    

Damping factor (8O):
>700:1 @ 20Hz - 1kHz (QA3004 ) >800:1 @ 20Hz - 1kHz (QA4004 )    

Indicator LEDs:
Two clip, two signal presence, one active status, two protection

Protection:
Thermal, DC, turn-on bursts, subsonic, incorrect loads

Connectors:
XLR . Speakon . 240/230Volt 16 amp IEC mains

Construction:
Cold Steel Rolling Machined aluminium front panel

Dimensions (HxWxD):
89mm x 483mm x 496mm 132 mm x 483mm x 496mm

Net Weight:
23kg 35kg    

Packaged Shipping Weight:
26kg 38kg