Phoenix Gold ZQ5004 Amp Class AB High End 4 Channel Amplifier 4x85w RMS

The Phoenix Gold ZQ5004 is a ZQ Series Class A/B 4-channel car amplifier delivering 85W RMS x 4 at 4 ohms. Part of Phoenix Gold's high-end ZQ Series, it features a compact black and gold chassis aimed at sound quality-focused installations.

Key specifications

• Channels: 4 (Class A/B)
• RMS power: 85W x 4 @ 4 ohm / 130W x 4 @ 2 ohm
• Bridged: 250W x 2 @ 4 ohm
• Frequency response: 10Hz – 55kHz
• Signal to noise ratio: >100dB
• Crossover range: 50Hz – 500Hz
• Bass boost: @ 45Hz 0 to +18dB
• Input impedance: 22K Ohm
• Supply voltage: 11 – 15V
• Dimensions (L x W x H): 280 x 200 x 56mm

ZQ5004 Class A/B High End Amplifier

The ZQ5004 is a 4-channel Class A/B amplifier in a compact black and gold chassis measuring 280 x 200 x 56mm. It can be tucked out of sight or displayed as a focal point of the installation.

Key Features

• Pure Class A/B technology
• 85W x 4 @ 4 Ohm (RMS)
• 130W x 4 @ 2 Ohm (RMS)
• 250W x 2 @ 4 Ohm bridged (RMS)
• Frequency response: 10Hz – 55kHz
• Signal to noise ratio: >100dB
• Crossover range: 50Hz – 500Hz
• Bass boost: @ 45Hz 0 to +18dB
• Input impedance: 22K Ohm
• Supply voltage: 11 – 15V
• Dimensions (L x W x H): 280 x 200 x 56mm

The ZQ Series uses award-winning technology designed to deliver a natural, uncompromised sound. Highly regarded by Phoenix Gold enthusiasts and audiophiles, the ZQ Series represents a return to PG's original core values of premium, high-end audio.

The ZQ5004's PCBs feature a two-layer gold immersion treatment, and the terminals are 24K gold plated for superior connectivity. The dual power supply is optimised to feed the amplifier consistently, using Nichicon (Japan) and Wima (Germany) capacitors throughout.

High-end polymer gain potentiometers aid amplification, and the shielded transformer cores — manufactured in Germany — ensure a clean power feed. The dual-colour extruded heatsink with heat transfer optimisation keeps the amplifier cool under sustained heavy use.

The ZQ5004 is engineered for low EMI emissions, minimising interference with the vehicle's electronics and FM signal. If you need a mono or multi-channel option in a smaller form factor, Phoenix Gold also offer the ZXM500.4 ZX Series 4-channel mini amplifier.