Phoenix Gold ZT6004R

The Phoenix Gold ZT6004R is a compact 4-channel Class D amplifier designed specifically for use in 24-volt vehicle electrical systems. This makes it particularly well-suited for audio upgrades in trucks, commercial vehicles, RVs, and other vehicles with a 24-volt power supply.

With an RMS power output of 4 × 175 watts at 2 ohms, the ZT6004R offers ample power reserves for high-performance front and rear speakers. Alternatively, the channels can be operated in bridge mode. In this configuration, 2 × 350 watts RMS at 4 ohms are available, allowing the amplifier to be used with higher-power speakers or subwoofer applications.

Thanks to modern Class D technology, the ZT6004R combines high output power with a compact enclosure and an efficiency of up to 88%. With dimensions of just 254 × 160 × 48.3 mm, the power amplifier can be installed even in locations where installation space is limited.

Adjustable high-pass and low-pass filters ranging from 50 to 400 Hz are available for matching the unit to the connected speaker system. In addition, the bass boost at 45 Hz allows for a boost of up to +18 dB. Thanks to high-level inputs via the RCA connectors and the automatic power-on function, the amplifier can also be integrated into many vehicles equipped with factory-installed radios.

A wired remote control is included and allows for convenient volume control of channels 3 and 4 from the driver's seat.

Technical Specifications

• Manufacturer: Phoenix Gold
• Model: ZT6004R
• Series: ZT Series
• Amplifier Type: 4-Channel Power Amplifier
• Amplifier Technology: Class D
• Number of channels: 4
• Designed for: 24-volt vehicle electrical systems
• Operating voltage: 20–32 V
• RMS power at 2 ohms: 4 × 175 watts
• RMS power at 4 ohms: 4 × 105 watts
• RMS power (bridged at 4 ohms): 2 × 350 watts
• 1-ohm operation: not supported
• Frequency response: 12 Hz – 22 kHz
• Signal-to-noise ratio at full power: -90 dB
• Total Harmonic Distortion (THD): < 1%
• Low-pass filter (LPF): 50–400 Hz
• Low-pass filter slope: 12 dB/octave
• High-pass filter (HPF): 50–400 Hz
• High-pass filter slope: 12 dB/octave
• Bass Boost: 0 to +18 dB
• Bass boost frequency: 45 Hz
• Channel Separation / Crosstalk: -60 dB
• Input sensitivity: 0.25 – 9.8 V
• High-level input: yes, via RCA
• Automatic activation via high-level signal: yes
• Remote volume control: Yes, included
• Remote control: Channels 3 and 4
• Quiescent current: 0.55 A
• Maximum current draw: 34 A
• Efficiency at 4 ohms: 88%
• Fuse rating: 2 × 20 A
• Power connection: up to 20 mm²
• Speaker connection: up to 4 mm²
• Subsonic filter: no
• Phase controller: no
• Protection circuitry: Protection against, among other things, overheating, incorrect power supply/polarity, speaker polarity reversal, and undervoltage
• Dimensions (L × W × H): 254 × 160 × 48.3 mm
• Weight: 1.76 kg
  
  

Features and Highlights

• Designed specifically for vehicles with a 24-volt electrical system
• High-Performance 4-Channel Class D Technology
• Up to 4 × 175 watts RMS for multichannel speaker systems
• Bridgeable operation with up to 2 × 350 watts RMS
• Compact design for flexible installation options
• Adjustable High-Pass Filter
• Adjustable Low-Pass Filter
• Adjustable Bass Boost
• High- and Low-Level Signal Connectivity
• High-level input via RCA
• Automatic power-on when a high-level audio signal is present
• Suitable for integration with factory-installed and retrofitted signal sources
• Rugged terminal blocks for a reliable power supply
• Multi-stage protection circuit
• Wired volume control included
  
  

What's Included

• 1 × Phoenix Gold ZT6004R 4-Channel Class-D Amplifier
• 1 × Wired Remote Level Control