QXD-2K

4-Channel 2000W 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.

Reliable operation is ensured through universal mains compatibility and fan-assisted temperature-dependent cooling, even under demanding conditions. Dante® Version Available – QXD-2KD (additional 4 inputs, Dante® AoIP, AES67 compatible)

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
Dante® Version Available – QXD-2KD (additional 4 inputs, Dante® AoIP, AES67 compatible)

SPECIFICATIONS

POWER (PEAK)

Total Power 2000 W

Normal Operation

8Ω 4 x 500W

4Ω 4 x 500W

70V 4 x 500W

100V 4 x 500W

POWER (RMS)

Total Power 1200 W

Normal Operation

8Ω 4 x 300W

4Ω 4 x 300W

70V 4 x 300W

100V 4 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 5.08 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® Version Available - QXD-2KD (additional 4 inputs, Dante® AoIP, AES67 compatible)

Maximum Dynamic Power (@1kHz, 1% THD) (PEAK)

Total 2000 W	Normal Operation
	8Ω 4 x 500W	4Ω 4 x 500W	70V 4 x 500W	100V 4 x 500W

Maximum Continuous Power (@1kHz, 1% THD) (RMS)

Total 1200 W	Normal Operation
	8Ω 4 x 300W	4Ω 4 x 300W	70V 4 x 300W	100V 4 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 5.08 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® Version Available - QXD-2KD (additional 4 inputs, Dante® AoIP, AES67 compatible)