QUEST QX300A เพาเวอร์แอมป์

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QUEST QX300A เพาเวอร์แอมป์ประสิทธิภาพสูง 2 x 150W การป้องกันการลัดวงจร สามารถติดตั้งบนแร็คได้ 1RU ขั้วต่อ I/O ของแอมพลิฟายเออร์สไตล์ Euroblock



QUEST QX300A เพาเวอร์แอมป์

The QX-300 series amplifiers take commercial audio to a new level. The superior Class-D technology combined with small form factor make the QX-300 series the perfect solution for any commercial or industrial application. Wall and table mount options offer more flexibility, 10 units can be mounted in 3RU, achieving extremely high power to channel count for density.

UMAC™ Class-D technology delivers unequalled audiophile specifications, including the highest dynamic range and the lowest distortion performance of any comparable pro audio amplifier. This makes the QX-300 Series suitable for pro audio applications and for use in Hi-Fi and AV products.


  • High Performance 2 x 150W Power Amplifier
  • Auto Load Sensing: 4-16 Ohm, 70V Line (Stereo) 100V Line (Bridged-Mono)
  • Energy smart technology (Green Energy Star & ErP 1275/2008/EC compliant)
  • UMAC™ Class-D – full bandwidth PWM modulator with ultra-low distortion
  • DanteTM/AES67 inputs available* (D version)
  • Individual volume control, standby, 80Hz High Pass Filter
  • Short circuit protection, DC protection, under voltage protection, temperature protection, overload protection
  • UREC™ universal mains switch mode power supply with Power Factor Correction (PFC) and integral standby converter
  • Rack-mountable 1RU 1/3 space, wall and table mount options available
  • Euroblock style amplifier I/O connectors
  • High Dynamic range incorporating, DynamiQ Bass technology®
  • Designed, Engineered, and Assembled in Australia

Data Sheet

Frequency Response 20-20kHz (+/-0.3dB)
Peak Output Current 25A
Dynamic Range 112dB (A-weighted)
Noise Level -76dBu (A-weighted)
Distortion (1kHz@1W/8Ohm) 0.00%
Distortion (1kHz@50W/8Ohm) 0.011% (Stereo) 0.004%
Crosstalk (1kHz@1W/8Ohm) -95dB
Gain 26dB/32dB
Maximum Input Level +24dBu
Amplifier Version QX-300A
Input Type Phoenix Balanced Inputs
Input Sensitivity +7dBu/+4dBu
Input Impedance 10kOhm
Maximum Input Level +24dBu
Output Resistance 22.5mOhm/43.6mOhm
Front Controls Volume Adjust, 80Hz HPF Enable, Bridged-Mono Enable, Limiter Enable, Auto-Standby Enable)
Indicators (LEDs) Blue/Orange
Orange Protection
Green Signal
Orange/Red Limiter/Clip
Cooling Fan cooled, temperature dependent
Features Wake On Music, Auto-Mute (1ms wake-up), Limiting on High Temperature
Amplifier Protection Systems Thermal protection, Over- Current Protection, DC Protection, HF Protection
Mains Input Voltage Range 85VAC – 265VAC
Amplifier Version QX-300A
Standby Power Consumption 0.4W
Muted Power Consumption 4.2W
Idle Power Consumption 7.2W
Standard Power Consumption (Pink Noise@ 1/8th Rated Power, 8Ohm) 28W
Mains Connector Standard IEC C14
Dimensions (H x W x D) 44.5 x 140 x 330 mm (1.75 x 5.5 x 13″)
Weight 1.6kg (3.5 lbs)
Accessories Mains Cable, Feet, User Manual, Phoenix Plugs, Rack Ears
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