QX41500

High Performance 4 x 1500W Power Amplifier

The Quest QX41500 is a professional powerhouse amplifier delivering 4 x 1500W from a compact 2U form factor. Engineered with advanced auto load sensing and state-of-the-art UMAC™ Class-D circuitry, it ensures rapid activation and sustained performance under rigorous conditions. Its robust construction and precise signal processing capabilities provide uncompromised audio fidelity, making it the amplifier of choice for the most demanding commercial and multi-zone installations.

Key Specifications:

  • Channels: 4 x 1500W (Low-Z & 70/100V)
  • Mounting: 2RU Rack
  • Optional: Dante/AES67 Version

SPECIFICATIONS

POWER
NORMAL OPERATION (PEAK)
Load Total Power 8 Ω 4 Ω 70V 100V 8 Ω 4 Ω 70V 100V
Maximum Dynamic Power (@ 1khz, 1% THD) 6000 W 4 x 1500 W 4 x 1400 W 4 x 1500 W 4 x 1500 W N/A N/A N/A N/A
NORMAL OPERATION (RMS)
Load Total Power 8 Ω 4 Ω 70V 100V 8 Ω 4 Ω 70V 100V
Maximum Continuous Power (@ 1khz, 1% THD) 6000 W 4 x 1500 W 4 x 1400 W 4 x 1500 W 4 x 1500 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 outputs on SpeakON Connectors
INPUT CHANNELS
XLR Balanced Inputs and Euroblock Links
DEFAULT GAIN
32 dB
FREQUENCY RESPONSE
20 Hz to 20 kHz (±0.3 dB)
TOTAL HARMONIC DISTORTION
0.004% (1 kHz @ 1/8th Power / 8 Ω load)
DYNAMIC RANGE
111 dB (A-weighted)
MAXIMUM INPUT LEVEL
'+24 dBu
INPUT IMPEDANCE
10kΩ
LATENCY
N/A
C
CONTROLS AND INDICATORS (FRONT)
Per Channel: Volume Potentiometer, 80 Hz HPF Switch, 100 Hz LPF Switch, Bridge-Mono Switch, Limiter Switch and Auto-Standby Switch
CONTROLS AND INDICATORS (REAR)
N/A
CONTROL AND MONITORING
N/A
DIGITAL SIGNAL PROCESSING
N/A
PROTECTION CIRCUITS
Thermal protection, Over-Current Protection, DC Protection, HF Protection
P
MAINS POWER INPUT
Universal Mains, 100-240V, 50-60 Hz
MAINS CONNECTOR
powerCON
POWER CONSUMPTION - STANDBY
4.9 W
POWER CONSUMPTION - IDLE
50 W
POWER CONSUMPTION - 1/8TH POWER / 8 Ω Load
750 W
POWER CONSUMPTION - 1/3RD POWER / 8 Ω Load
2000 W
H
HEAT GENERATED - STANDBY
16.7 BTU/hr / 4.2 kJ per hour
HEAT GENERATED - 1/8TH POWER / 8 Ω Load
341 BTU/hr / 85 kJ per hour
COOLING
Fan-Forced Air Cooling – Temperature-Dependent
FAN NOISE (ANECHOIC CHAMBER @ 1 m)
38 dB(A)
S
RACK SIZE
2RU
RACK SIZE
2RU
DIMENSIONS (W x H x D)
482 x 88 x 416 mm (19 x 3.5 x 16.4")
WEIGHT
12.4 kg (27.3 lbs)
SHIPPING DIMENSIONS (W x H x D)
610 x 135 x 550 mm (24 x 5.3 x 21.7")
SHIPPING WEIGHT
14.8 kg (32.6 lbs)
A
ACCESSORIES (INCLUDED)
Mains Cable, Feet, User Manual
ACCESSORIES (AVAILABLE SEPARATELY)
Dante® 4CH Input Card (QDNT4D), Dante® 4CH Input Card with Switched Output (QDNT4DS), Volume Control Card (QVR4), Wall Plate Volume Control (WPV1)
OPTIONS
Dante® Expansion Card (additional 4 inputs, Dante® AoIP, AES67 compatible)

INSTALLATION ACCESSORIES

WPV1

Wall plate volume control for QX amplifiers with QRV4 card.

WPV1

QRV4

Remote volume control card for QX Series amplifiers, used with WPV1 panel.

QRV4

QDNT4D

Dante/AES67 expansion card for QX amps; adds four networked audio input channels.

QDNT4D

QDNT4DS – Dante Expansion Input Card (Switched, Dante, and AES67)

The QDNT4DS is a switched Dante expansion input card designed for QX Series amplifiers. It supports both Dante and AES67 protocols and includes a spare switched output for cascading applications.

QDNT4DS – Dante Expansion Input Card (Switched, Dante, and AES67)

QX AMPS SERIES

QX300

High Performance 2 x 150W Power Amplifier

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QX300D

High Performance 2 x 150W Power Amplifier with Dante/AES67

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QX4150

High Performance 4 x 150W Power Amplifier

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QX4300

High Performance 4 x 300W Power Amplifier

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QX4750

High Performance 4 x 750W Power Amplifier

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QX41500

High Performance 4 x 1500W Power Amplifier

Learn More