QX Rackmount Series
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
Image Gallery
QX4150 Front Panel
QX4150 Back Panel
QX4150 Open View
QX4150 Rear View
QX4300 Front Panel
QX4300 Back Panel
QX4300 Open View
QX4300 Rear View
QX4750 Front Panel
QX4750 Back Panel
QX4750 Open View
QX4750 Rear View
QX41500 Front Panel
QX41500 Back Panel
QX41500 Open View
QX41500 Rear View
QX4150D/QX4300D Rear View
QX4150DS/QX4300DS Rear View
QX4750D/QX41500D Rear View
QX4750DS/QX41500DS Rear View
Downloads
- QX Rackmount Series Spec Sheet
- QX4150 Spec Sheet
- QX4300 Spec Sheet
- QX4750 Spec Sheet
- QX41500 Spec Sheet
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 |
Contact Quest
Phone: +61 (0) 3 8373 6868
Address: 86 Derby Street, Pascoe Vale VIC 3044 AustraliaFind 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.