ESX QL600.2 (24 volts)

The ESX QUANTUM QL600.2 (24V) is a compact and powerful 2-channel Class D digital amplifier designed specifically for vehicles with a 24-volt electrical system. This makes the amplifier particularly suitable for use in trucks, tour buses, and other commercial vehicles.

As a compact model in the QUANTUM QL series, the QL600.2 combines modern Class D amplifier technology with high output power and versatile adjustment options. Despite its space-saving design, the amplifier delivers up to 2 x 300 watts RMS into 2 ohms or 600 watts RMS in bridged mode into 4 ohms.

High-quality, audiophile-grade components, a solid aluminum heat sink, and sturdy cast-aluminum side panels ensure a robust design. With an efficiency of up to 87%, the amplifier operates particularly efficiently.

For flexible integration, the QL600.2 features high-level inputs with EPS short-circuit protection, an automatic power-on function, and extensive high-pass, low-pass, and band-pass settings. The included compact bass-level remote control allows for convenient adjustment of the bass level from the driver's seat.

Technical Specifications

General Characteristics

• Model: ESX QUANTUM QL600.2 (24V)

• Amplifier Type: 2-Channel Digital Amplifier

• Amplifier Class: Class D

• Operating voltage: 24-volt vehicle electrical system

• Number of channels: 2

• Efficiency: Up to 87%

• Power Supply: MOSFET PWM

• Heat Sink: Solid Aluminum

• Side panels: Die-cast aluminum
  
  

RMS Output Power

• 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 (manufacturer's specification)

• 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 volts
  
  

Crossover Networks and Filters

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

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

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

• Bass Boost: 0–12 dB at 40 Hz

• Bandpass function: Available

• Full-range operation: Possible
  
  

Connections and Features

• RCA inputs: Available

• High-level inputs: Available

• EPS (Error Protection System): Present

• Automatic power-on function: Available

• Automatic power-on via DC offset or audio signal

• Full-range RCA outputs: Stereo

• Bass Level Remote Control: Included

• Start-stop capability: Up to a voltage drop to 17 volts

• Protection Circuit: 3-Stage Protection System

• External fuse: 30 A
  
  

Dimensions

• Width: 226 mm

• Height: 43 mm

• Depth: 120 mm
  
  

What's Included

• ESX QUANTUM QL600.2 (24V) Amplifier

• Compact Bass Level Remote Control