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Quest QA3004 Stereo Power Amp 2 x 1100W @ 4 ohm

Quest

QA3004

With industrial spec multi-speed fans and generous heat sinks Quest QA 3004 power amplifiers are built to work hard in the tough environment of pro audio.

Service and maintenance is easy as the internal architecture is laid out for easy access by a qualified technician. 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, not easy manufacture. A minimum of disassembly is required for testing and maintenance meaning lower operating costs and longer amplifier life. QA 3004 Amplifier front and back panels.

NB. QA3004 shown for display purposes

Warranty: 2 Years

  • 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 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.

Rated Power (2x 8Ω): 660-W per channel @ 1kHz at <0.05% T.H.D. both channels driven

Rated Power: (2x 4Ω): 1100-W per channel @ 1kHz at <0.05% T.H.D. both channels driven

T.H.D: <0.1%@400-W per channel from 20 HZ to 20kHz

Minimum Load Impedance: 2Ω - Audio signal / 4Ω - Signal wave

Phase Response: +5 to -15 from 20 Hz to 20kHz

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

Cooling: Two temperature dependant variable speed 80mm 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

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

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

Slew Rate: >40V/us Damping factor (8Ω):>700:1 @ 20Hz - 1kHz

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

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

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

Construction: Cold Steel Rolling + Machined aluminium front panel

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

Net Weight: 23kg

Packaged Shipping Weight: 26kg

To download the QA Series User Manual please click here.

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Type: Power Amps