ESX HXA100.4

The ESX HXA100.4 from the HORIZON series is a powerful 4-channel Class A/B amplifier that combines solid sound quality with versatile adjustment options. With an output power of up to 4 x 100 watts RMS at 2 ohms, this power amplifier is ideal for driving front and rear speakers as well as high-performance component systems.

Thanks to the bridge mode, subwoofers with up to 200 watts RMS at 4 ohms can be driven per bridged channel pair. The built-in high-pass and low-pass filters allow for customization to suit different speaker configurations. In addition, a bandpass function is available for channels 3 and 4.

The adjustable bass boost provides targeted bass enhancement. The included bass level remote control allows you to conveniently adjust the volume of channels 3 and 4 from the driver's seat.

The solid aluminum heat sink with acrylic inserts, the recessed diamond-cut logo, and the rugged connection terminals highlight the high-quality craftsmanship. A MOSFET PWM power supply and a triple protection circuit round out the features.

Technical Specifications

General Characteristics

• Model: ESX HXA100.4

• Series: HORIZON HXA

• Amplifier Type: 4-Channel Analog Amplifier

• Amplifier Technology: Class A/B

• Number of channels: 4

• Power Supply: MOSFET PWM

• Efficiency: Up to 63%

• Speaker impedance: 2–8 ohms

• Bridge Mode: 4 ohms
  
  

RMS Output Power at 14.4 V

• 4 x 60 watts RMS at 4 ohms

• 4 x 100 watts RMS at 2 ohms

• 2 x 200 watts RMS bridged at 4 ohms
  
  

Sound and Signal Parameters

• Total Harmonic Distortion (THD): 0.5% at 5 watts

• Damping factor: 75

• Signal-to-noise ratio: 90 dB

• Input sensitivity: 0.1–7 volts
  
  

Crossover Networks and Filters

• High-pass filter, channels 1/2: 10–250 Hz

• High-pass filter slope, channels 1/2: 12 dB/octave

• High-pass filter, channels 3/4: 10–250 Hz

• High-pass channel 3/4 slope: 12 dB/octave

• Low-pass filter, channels 3/4: 50–250 Hz

• Low-pass slope, channels 3/4: 12 dB/octave

• Bandpass function for channels 3/4: Yes

• Bass Boost Channels 3/4: 0–12 dB

• Bass boost frequency: 45 Hz

• External bass level remote control for channels 3/4: Yes
  
  

Connections and Features

• Low-level inputs: 4 x RCA

• Heavy-duty speaker and power connection terminals

• Aluminum heat sinks with acrylic inserts

• Recessed diamond-cut logo

• Integrated 3-stage protection circuit

• External Bass Level Remote Control
  
  

Power Supply

• Operating voltage: 9–15 volts DC

• Vehicle electrical system: 12 volts with negative ground

• Equipment fuses: 2 x 20 amps
  
  

Dimensions

• Width: 220 mm

• Height: 51 mm

• Length: 342 mm
  
  

What's Included

• ESX HXA100.4 4-Channel Amplifier

• Bass Level Remote Control