เพาเวอร์แอมป์ QUEST QA1004 เครื่องขยายเสียง 2 ชาแนล 2×575 วัตต์ ที่ 4 โอมห์ QA1004 Power Amplifier จากแบรนด์ QUEST
QUEST QA1004
Power Amplifier
คุณสมบัติ
- 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 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.
สเปค
QA1004 |
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2x 575-w at 4Ω |
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Rated Power |
290-W per channel @ 1kHz at <0.1% T.H.D. both channels driven |
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Rated Power: |
575-W per channel@ 1kHz at <0.1% T.H.D. both channels driven |
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T.H.D: |
<0.1%@250-W per channel from 20 HZ to 20kHz |
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Phase Response: |
+5 to -15 from 20 Hz to 20kHz |
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Input Impedance: |
20 kΩ, balanced; 10 kΩ, unbalanced |
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Cooling: |
Two temperature dependant variable speed 80mm high-output DC fans |
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Controls: |
Two front panel attenuators, rear panel mode switch and gain select switch |
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High Pass: |
Linkwitz-Reily (24 dB/Octave): Off/35/80 Hz |
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Low Pass: |
Linkwitz-Reily (24 dB/Octave): Off/80/110Hz |
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Voltage Gain @ |
29 dB or 24 dB |
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Crosstalk: |
>-60 dB @ 1kHz at rated power @ 8Ω |
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Hum and Noise: |
>-105 dB, “A” weighted referenced to rated power @ 8Ω |
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Slew Rate: |
>30V/us |
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Damping factor (8Ω): |
>500:1 @ 20Hz – 1kHz |
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Indicator LEDs: |
Two clip, two signal presence, one active status, two protection |
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Protection: |
Thermal, DC, turn-on bursts, subsonic, incorrect loads |
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Connectors: |
XLR . Speakon . 240/230 Volt 16 amp IEC mains |
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Construction: |
Cold Steel Rolling + Machined aluminium front panel |
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Dimensions (HxWxD): |
89mm x 483mm x 496mm |
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Net Weight: |
17kg |
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Packaged Shipping Weight: |
20kg |
