HiFonics ZXR800/4E

The HiFonics ZXR800/4E from the ZEUS POWER EXPANSION series combines powerful Class D technology with an exceptionally compact enclosure. Thanks to modern digital technology, this 4-channel power amplifier offers high efficiency and powerful power reserves for demanding car audio systems.

The ZEUS E-Class expands the proven ZXR series with highly efficient digital amplifiers featuring high-quality, audiophile-tuned components. The amplifier series was named “PRODUCT OF THE YEAR 2025” by the trade magazine Car & HiFi in its January 2025 issue.

With up to 4 × 200 watts RMS at 2 ohms or 2 × 400 watts RMS in bridge mode, the ZXR800/4E is suitable for both high-power speaker systems and for driving compatible subwoofers.

The built-in high-level inputs with EPS® (Error Protection System) allow for integration into modern vehicles equipped with factory-installed radios. An automatic power-on function, start-stop compatibility, and individually adjustable high- and low-pass filters up to 5,000 Hz ensure flexible application options.

The high-quality housing, featuring cast aluminum side panels and a blue-illuminated logo panel, rounds out the design.

Technical Specifications

General Characteristics

• Manufacturer: HiFonics

• Model: ZXR800/4E

• Series: ZEUS POWER EXPANSION

• Amplifier Type: 4-Channel Digital Amplifier

• Amplifier Technology: Class D

• Number of channels: 4

• Speaker impedance: 2–8 ohms

• Bridge Operation: Possible

• Housing: Compact heat sink with cast aluminum side panels

• Lighting: Blue-illuminated logo panel
  
  

RMS Output Power at 14.4 V

• 4 × 120 watts RMS at 4 ohms

• 4 × 200 watts RMS at 2 ohms

• 2 × 400 watts RMS bridged at 4 ohms

• Performance specifications at a maximum of 1% THD+N
  
  

Audio Characteristics

• Damping factor: greater than 200

• Signal-to-noise ratio: greater than 98 dB

• Total harmonic distortion: less than 0.02%

• Input sensitivity: 200 mV – 6 V

• Carefully selected and audiophile-tuned components

• Highly Efficient Digital Amplifier Circuit
  
  

Crossover Networks and Sound Settings

• High-pass filter (HPF) Front: 50–5,000 Hz

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

• High-pass filter (HPF) Rear: 50–5,000 Hz

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

• Rear Bass Boost: 0–12 dB

• Bass boost frequency: 45 Hz

• Input selector switch: 2CH / 4CH
  
  

Connections and Features

• RCA inputs: Available

• High-level inputs: Available

• EPS® (Error Protection System): Integrated

• Automatic power-on via high-level inputs: Yes

• DC Auto Turn-On: Yes

• Start-Stop Compatibility: Yes

• IFT (Interference-Free Technology): Available

• EMC-certified technology: Yes
  
  

Power Supply

• Operating voltage: 10.5–16 V DC

• Temporary voltage drop: Up to 7 V for a maximum of 5 seconds

• Fuse rating: 2 × 40 A

• Total fuse rating: 80 A

• Suitable for vehicles with a 12-volt electrical system and a negative ground
  
  

Dimensions

• Width: 150 mm

• Height: 50 mm

• Length: 273 mm