Quest QXD-1K Power Amplifier with DSP and Network Capability
The QXD-1K is a compact 1RU, 4 x 250W Class-D amplifier designed for professional audio-visual environments. It offers flexible bridged output options up to 2 x 500W, including 70V/100V capabilities. This amplifier features UMAC™ Class-D technology, ensuring ultra-low distortion, high efficiency, and low power consumption. It’s ideal for fixed installations and includes a 32bit/96kHz DSP with FIR/IIR filters, peak and RMS limiters, and Quest speaker libraries.
A front-panel TFT display, RJ45 (network port), and GPIO provide intuitive local and remote control and monitoring capabilities. The RJ45 port allows for seamless integration into larger site-wide DSP and control systems, such as Q-Sys or Crestron, enabling comprehensive remote monitoring of the amplifier.
Key Specifications:
- Channels: 4 x 250W (Low-Z), 2 x 500W (Bridged for Low-Z, 70V, or 100V)
- DSP: 32bit/96kHz FIR/IIR Filters, Limiters, Speaker Libraries
- Mounting: 1RU Rack
- Control: RJ45 & GPIO, Front TFT Display
- Options: Dante™/AES67 Expansion Card
Product Specifications:
| POWER |
| NORMAL OPERATION (PEAK) |
BRIDGE-STEREO MODE (PEAK) |
| Load |
Total Power |
8Ω |
4Ω |
70V |
100V |
8Ω |
4Ω |
70V |
100V |
| Maximum Dynamic Power (@1kHz, 1% THD) |
1000W |
4 x 250W |
4 x 250W |
N/A |
N/A |
2 x 500W |
2 x 500W |
2 x 500W |
2 x 500W |
| NORMAL OPERATION (RMS) |
BRIDGE-STEREO MODE (RMS) |
| Load |
Total Power |
8Ω |
4Ω |
70V |
100V |
8Ω |
4Ω |
70V |
100V |
| Maximum Continuous Power (@1kHz, 1% THD) |
600W |
4 x 150W |
4 x 150W |
N/A |
N/A |
2 x 300W |
2 x 300W |
2 x 300W |
2 x 300W |
|
| I/O |
|
OUTPUT CIRCUITRY
|
UMAC™ Class-D – full bandwidth PWM modulator with ultra-low distortion
|
|
OUTPUT CHANNELS
|
Four Speaker Level Output via 2-pin Euroblock/Phoenix connector with 5.08mm pitch and screw-lock
|
|
INPUT CHANNELS
|
Four Balanced Line Level Inputs via 3-pin Euroblock/Phoenix connector with 5.08mm pitch and screw-lock
|
|
DEFAULT GAIN
|
25dB
|
|
FREQUENCY RESPONSE
|
20Hz - 20kHz (+/-0.25dB), 4Hz - 40kHz (-3dB)
|
|
TOTAL HARMONIC DISTORTION
|
< 0.008% (1kHz, 5W, 8ohm load)
|
|
DYNAMIC RANGE
|
> 103dBA
|
|
MAXIMUM INPUT LEVEL
|
+28dBu
|
|
INPUT IMPEDANCE
|
10kohm Unbalanced, 20kohm Balanced
|
|
LATENCY
|
<350us, flat setup
|
|
| CONTROL |
|
CONTROLS AND INDICATORS (FRONT)
|
High-Resolution TFT Display with Rotary Encoder with LED Halo
|
|
CONTROLS AND INDICATORS (REAR)
|
N/A
|
|
CONTROL AND MONITORING
|
RJ45 & GPIO
|
|
DIGITAL SIGNAL PROCESSING
|
32bit/96kHz with FIR/IIR Filters, Peak and RMS Limiters, Digital Delay & Custom Quest Speaker Libraries
|
|
PROTECTION CIRCUITS
|
Thermal Protection, Over-Current Protection, DC Protection, HF Protection
|
|
| ELECTRICAL |
|
MAINS POWER INPUT
|
Universal Mains, 100-240VAC, 50-60Hz
|
|
MAINS CONNECTOR
|
Standard IEC C14
|
|
POWER CONSUMPTION - STANDBY
|
<0.5W
|
|
POWER CONSUMPTION - IDLE
|
16W
|
|
POWER CONSUMPTION - 1/8TH POWER / 8ohm Load
|
120W
|
|
POWER CONSUMPTION - 1/3RD POWER / 8ohm Load
|
270W
|
|
| HEAT |
|
HEAT GENERATED - STANDBY
|
1.7BTU/hr / 1.7kJ per hour
|
|
HEAT GENERATED - 1/8TH POWER / 8ohm Load
|
154BTU/hr / 159kJ per hour
|
|
COOLING
|
Fan-Forced Air Cooling – User-Selectable Temperature-Dependent Control Curves
|
|
FAN NOISE
|
34dB(A) (Anechoic Chamber, @ 1m)
|
|
| SIZE |
|
RACK SIZE
|
1RU
|
|
DIMENSIONS (W x H x D)
|
482 x 44 x 344mm (19" x 1.75" x 13.5")
|
|
WEIGHT
|
5.3kg (11.7lbs)
|
|
SHIPPING DIMENSIONS (W x H x D)
|
610 x 90 x 480mm (24" x 3.5" x 19")
|
|
SHIPPING WEIGHT
|
7.5kg (16.5lbs)
|
|
| ACCESSORIES |
|
ACCESSORIES (INCLUDED)
|
Mains Cable, Euroblock/Phoenix Plugs, Wi-Fi Antenna
|
|
ACCESSORIES (AVAILABLE SEPARATELY)
|
None
|
|
OPTIONS
|
Dante® Expansion Card (additional 4 inputs, Dante® AoIP, AES67 compatible)
|
|
