QX Rackmount Series

QX4150 QX41500

Introduction

Quest Engineering's QX Rackmount Series amplifiers offer superior Class D performance with multi channel options across various models.

Ideally suited for any installation requiring small to medium power amplification, the QX Rackmount Series offer real flexibility with auto load matching LoZ and HiZ (70V or 100V) and standby functionality.

The series features class leading energy efficiency when units are in standby, while mute option enables the amplifier to be activated within 1ms.

HP and LP filters available on any channel make for very quick and reliable installation.

The QX4300 and QX41500 offer Low impedance, 70 V or 100 V direct drive on all channels, while the QX4150 and QX4750 offer the ability to bridge channels to give 2 and 3 channel operation.

Features

  • Superior class D technology providing high performance power amplification.
  • Auto Load Sensing: 4-16 Ohm, 70V - 100V Hi Z
  • Energy star compliance, standby power saving mode available per channel (switchable)
  • UMAC™ Class-D – full bandwidth PWM modulator with ultra-low distortion
  • Dante™/AES67 inputs available via Dante expansion card
  • Individual volume control, standby, 80Hz HPF, 100Hz LPF, Limiter
  • Short circuit protection, DC protection, under voltage protection, temperature protection, overload protection, HF protection
  • UREC™ universal mains switch mode power supply with Power Factor Correction (PFC) and integral standby converter
  • Euroblock style amplifier I/O connectors
  • High Dynamic range incorporating, DynamiQ Bass technology®
  • Designed, Engineered, and Assembled in Australia

 

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Specifications

MODEL SIZE PER CHANNEL BRIDGED-MONO MODE
Maximum Dynamic Power
(@1KHz, 1% THD)
  8Ohm 4Ohm 70V
(22Ohm)
100V
(33Ohm)
8Ohm 4Ohm 70v 100V
QX4150 1RU 4x 200W 4x 275W NA NA 2x 550W 2x 550W 2x 550W 2x 550W
QX4300 1RU 4x 550W 4x 550W 4x 550W 4x 550W NA NA NA NA
QX4750 2RU 4x 400W 4x 750W NA NA 2x 1500W 2x 1400W 2x 1500W 2x 1500W
QX41500 2RU 4x 1500W 4x 1400W 4x 1500W 4x 1500W NA NA NA NA

 

MODEL SIZE PER CHANNEL BRIDGED-MONO MODE
Maximum Continuous
Power (@1kHz, 1% THD)
  8Ohm 4Ohm 70V
(22Ohm)
100V
(33Ohm)
8Ohm 4Ohm 70v 100V
QX4150 1RU 4x 150W 4x 150W NA NA 2x 280W 2x 260W 2x 250W 2x 240W
QX4300 1RU 4x 280W 4x 260W 4x 250W 4x 240W NA NA NA NA
QX4750 2RU 4x 400W 4x 750W NA NA 2x 1500W 2x 1400W 2x 1500W 2x 1500W
QX41500 2RU 4x 1500W 4x 1400W 4x 1500W 4x 1500W NA NA NA NA

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Contact Quest

Phone: +61 (0) 3 8373 6868

Address: 86 Derby Street, Pascoe Vale VIC 3044 Australia

Find Your Local Distributor

Feel free to get in touch with your nearest distributor. We’re always happy to hear from people interested in our products and we’re always ready to help you with your next project. You can find your nearest Quest distributor on the map below.

Contact Form

For general enquiries email Quest Directly using the enquiry form below.

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