ESX QE600.2

The ESX QUANTUM QE600.2 is a high-performance 2-channel digital amplifier that combines high output power with outstanding sound quality and efficient Class D technology. The QUANTUM QE series was specifically designed to minimize electromagnetic interference in the vehicle—even under high-power conditions—thereby ensuring that radio reception is not compromised.

Carefully selected, audiophile-tuned components ensure precise and dynamic music reproduction. With an RMS power output of up to 2 x 300 watts at 2 ohms or 600 watts in bridged mode at 4 ohms, the QE600.2 is suitable for both high-power speaker systems and for driving a subwoofer.

Features include a solid aluminum heat sink, sturdy die-cast aluminum side panels, and high-quality connectors with screw-terminated RCA jacks. The integrated high-level inputs with EPS® enable integration into existing vehicle systems. Flexible crossovers, an automatic power-on function, and the included compact bass-level remote control round out the features.

Technical Specifications

General Characteristics

• Model: ESX QUANTUM QE600.2

• Amplifier Type: 2-Channel Digital Amplifier

• Amplifier Technology: Class D

• Number of channels: 2

• Efficiency: Up to 87%

• Power supply: 12-volt vehicle electrical system

• Power Supply: MOSFET PWM Switching Power Supply

• Heat Sink: Solid Aluminum

• Side panels: Die-cast aluminum
  
  

RMS output power at 13.8 V

• 2 x 175 watts RMS at 4 ohms

• 2 x 300 watts RMS at 2 ohms

• 1 x 600 watts RMS bridged at 4 ohms
  
  

Maximum output power at 13.8 V

• 2 x 350 watts MAX at 4 ohms

• 2 x 600 watts MAX at 2 ohms

• 1 x 1200 watts MAX, bridged at 4 ohms
  
  

Audio Characteristics

• Frequency response (-3 dB): 5 Hz – 55,000 Hz

• Damping factor: Over 220

• Signal-to-noise ratio: Over 81 dB

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

• Input sensitivity: 0.2 – 5 V
  
  

Crossover Networks and Sound Settings

• Filter Modes: Full-range / High-pass / Low-pass / Band-pass

• High-pass filter (HPF): 10–500 Hz, continuously adjustable

• Low-pass filter (LPF): 50–5,000 Hz, continuously adjustable

• Bandpass function: Yes

• Bass Boost: 0–12 dB at 40 Hz

• Full-range operation: Yes
  
  

Connections and Features

• RCA low-level inputs: Yes

• High-level inputs: Yes, with EPS® Error Protection System

• Automatic power-on function: Yes

• Activation via DC offset or audio signal: Yes

• Full-range stereo RCA outputs: Yes

• Bass Level Remote Control: Yes

• Start-stop capability: 8.5 V and above

• Protection circuit: 3-way

• High-quality screw-type RCA jacks: Yes

• Low-interference amplifier technology for reducing electromagnetic interference
  
  

Dimensions and Fuse Protection

• Width: 280 mm

• Height: 46 mm

• Length: 165 mm

• Required external fuse rating: 70 A
  
  

What's Included

• ESX QUANTUM QE600.2 2-Channel Amplifier

• Compact Bass Level Remote Control

• User Manual