ESX QE1500.1

The ESX QUANTUM QE1500.1 is a high-performance mono Class D digital amplifier that combines high output power with audiophile-grade sound quality and state-of-the-art amplifier technology. With up to 1,500 watts RMS at 1 ohm, it offers enormous power reserves for demanding subwoofer systems.

The QUANTUM QE Series was specifically designed to minimize the electromagnetic interference that often occurs with high-power digital amplifiers, thereby ensuring that in-vehicle radio reception remains as unaffected as possible. High-quality, carefully selected components ensure precise and dynamic bass reproduction.

Thanks to its efficient Class D circuit technology, the QE1500.1 achieves an efficiency of up to 90%. The solid aluminum heat sink with sturdy cast aluminum side panels ensures effective heat dissipation.

Its extensive features include an adjustable subsonic filter, a variable low-pass filter, bass boost, and continuously adjustable phase control. The included compact bass level remote control allows you to conveniently adjust the subwoofer level from the driver's seat.

High-level inputs with the ESX Error Protection System (EPS®), an automatic power-on function, and start-stop compatibility also allow for integration into modern vehicles equipped with factory-installed audio systems.

Technical Specifications

General Characteristics

• Model: ESX QE1500.1

• Series: QUANTUM QE

• Amplifier Type: Mono Digital Amplifier

• Amplifier Class: Class D

• Number of channels: 1

• Impedance stability: up to 1 ohm

• Efficiency: up to 90%

• Power Supply: MOSFET PWM Switching Power Supply
  
  

RMS output power at 13.8 V

• 1 × 500 watts RMS at 4 ohms

• 1 × 850 watts RMS at 2 ohms

• 1 × 1,500 watts RMS at 1 ohm
  
  

Maximum output power at 13.8 V

• 1 × 1,000 watts at 4 ohms

• 1 × 1,700 watts at 2 ohms

• 1 × 3,000 watts at 1 ohm
  
  

Audio Characteristics

• Frequency response (−3 dB): 10–150 Hz

• Damping factor: greater than 220

• Signal-to-noise ratio: greater than 81 dB

• Total Harmonic Distortion plus Noise (THD+N): less than 0.01%

• Input sensitivity: 0.2–5 V
  
  

Filters and Sound Settings

• Subsonic filter: 10–40 Hz, variable

• Low-pass filter (LPF): 40–150 Hz, variable

• Bass Boost: 0–18 dB at 40 Hz

• Phase control: 0–180°, variable

• External bass level remote control: included
  
  

Connections and Features

• RCA Inputs

• Full-range stereo RCA outputs

• High-level inputs with EPS® (Error Protection System)

• Automatic power-on function via DC offset or audio signal

• Start-stop compatible up to 8.5 V

• High-quality, screw-mounted RCA jacks

• Triple Protection Circuit
  
  

Power Supply and Dimensions

• External fuse: 130 A

• Width: 280 mm

• Height: 46 mm

• Depth: 165 mm

• Housing: Solid aluminum heat sink with cast aluminum side panels
  
  

What's Included

• ESX QE1500.1 Mono Amplifier

• Compact Bass Level Remote Control

• User Manual