Quest QXD-2K Power Amplifier with DSP and Network Capability
The QXD-2K is a compact 1RU, 4 x 500W Class-D amplifier designed for high-output installations. It’s versatile, operating at 8Ω, 4Ω, 70V, or 100V. This amplifier utilizes UMAC™ Class-D technology for ultra-low distortion, high efficiency, and precise full-bandwidth performance. It includes an onboard 32bit/96kHz DSP with FIR/IIR filtering, RMS and peak limiters, and integrated Quest custom speaker libraries.
For control and monitoring, the QXD-2K features a front-panel TFT display with a rotary encoder, alongside RJ45 (network port) and GPIO for external control and monitoring. The RJ45 port allows for seamless integration into networked AV systems, providing comprehensive remote monitoring and control.
Key Specifications:
- Channels: 4 x 500W (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 |
8 Ω |
4 Ω |
70V |
100V |
8 Ω |
4 Ω |
70V |
100V |
| Maximum Dynamic Power (@1kHz, 1% THD) |
2000 W |
4 x 500 W |
4 x 500 W |
4 x 500 W |
4 x 500 W |
N/A |
N/A |
N/A |
N/A |
| NORMAL OPERATION (RMS) |
BRIDGE-STEREO MODE (RMS) |
| Load |
Total Power |
8 Ω |
4 Ω |
70V |
100V |
8 Ω |
4 Ω |
70V |
100V |
| Maximum Continuous Power (@1kHz, 1% THD) |
1200 W |
4 x 300 W |
4 x 300 W |
4 x 300 W |
4 x 300 W |
N/A |
N/A |
N/A |
N/A |
|
| 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 5.08 mm 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
|
31 dB
|
|
FREQUENCY RESPONSE
|
20 Hz - 20 kHz (+/-0.25 dB), 4 Hz - 40kHz (-3dB)
|
|
TOTAL HARMONIC DISTORTION
|
< 0.008% (1 KHz, 5 W, 8 ohm load)
|
|
DYNAMIC RANGE
|
> 103 dBA
|
|
MAXIMUM INPUT LEVEL
|
+28 dBu
|
|
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, 50-60 Hz
|
|
MAINS CONNECTOR
|
Standard IEC C14
|
|
POWER CONSUMPTION - STANDBY
|
<0.5W
|
|
POWER CONSUMPTION - IDLE
|
28 W
|
|
POWER CONSUMPTION - 1/8TH POWER / 8 ohm Load
|
230 W
|
|
POWER CONSUMPTION - 1/3RD POWER / 8 ohm Load
|
510 W
|
|
| HEAT |
|
HEAT GENERATED - STANDBY
|
1.7 BTU/hr / 1.7 kJ per hour
|
|
HEAT GENERATED - 1/8TH POWER / 8 ohm Load
|
273 BTU/hr / 285 kJ per hour
|
|
COOLING
|
Fan-Forced Air Cooling – User-Selectable Temperature-Dependent Control Curves
|
|
FAN NOISE
|
34 dB(A) (Anechoic Chamber, @ 1 m)
|
|
| SIZE |
|
RACK SIZE
|
1RU
|
|
DIMENSIONS (W x H x D)
|
482 x 44 x 344 mm (19" x 1.75" x 13.5")
|
|
WEIGHT
|
5.9 kg (11.7 lbs)
|
|
SHIPPING DIMENSIONS (W x H x D)
|
610 x 90 x 480mm (24 x 3.5 x 19")
|
|
SHIPPING WEIGHT
|
8kg (17.6lbs)
|
|
| 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)
|
|
