HiFonics MERCURY IV V2

The HiFonics MERCURY IV V2 is a powerful, compact 4-channel amplifier featuring analog Class A/B technology. The MERCURY series combines high output power with a space-saving design and impresses with its balanced sound characteristics as well as its versatile connection and adjustment options.

The revised V2 version features an enhanced crossover section with adjustable filters up to 4,000 Hz. This makes the amplifier ideal for driving high-quality front and rear speakers, as well as for custom car audio setups. It also supports 3-channel mixed operation with two speakers and a bridged subwoofer.

Thanks to its built-in high-level inputs with EPS® (Error Protection System), the MERCURY IV V2 can also be integrated into vehicles equipped with factory-installed car stereos. The automatic power-on function via the high-level signal simplifies installation without the need for a separate remote wire.

An included bass-level remote control allows you to conveniently adjust the subwoofer level from the driver's seat. The solid aluminum heat sink ensures efficient heat dissipation, while the rugged cast end caps with concealed mounting channels allow for a clean installation.

Technical Specifications

General Characteristics

• Manufacturer: HiFonics

• Model: MERCURY IV V2

• Amplifier Type: 4-channel amplifier

• Amplifier Technology: Analog Class A/B

• Number of channels: 4

• Operating voltage: 12 V vehicle electrical system

• Speaker impedance: 2–8 ohms

• Bridge mode: Yes, at 4 ohms

• 3-channel mixing mode: Yes

• Start-stop capability: Yes
  
  

RMS Output Power at 14.4 V

• 4 ohms: 4 × 85 watts RMS

• 2 ohms: 4 × 125 watts RMS

• 4 ohms bridged: 2 × 250 watts RMS
  
  

Audio Characteristics

• Frequency response (−3 dB): 3–40,000 Hz

• Signal-to-noise ratio: 92 dB

• Damping factor: greater than 220

• Total harmonic distortion at 1 watt RMS: less than 0.01%
  
  

Crossover Filters, Channels 1/2

• Crossover Modes: DUPE / HPF / FULL

• High-pass filter (HPF): 10–4,000 Hz

• DUPE Function: Copy filter settings from channel 3/4
  
  

Crossover Channels 3/4

• Crossover Modes: LPF/BPF / HPF / FULL

• High-pass filter (HPF): 10–4,000 Hz

• Low-pass filter (LPF): 50–4,000 Hz

• Bandpass function: Yes

• Bass Boost: 0–12 dB at 45 Hz
  
  

Connections and Features

• RCA low-level inputs: Yes

• High-level inputs: Yes

• EPS® Error Protection System: Yes

• Automatic power-on function: Yes, via high-level inputs using DC offset

• Input selector switch: 2CH / 4CH

• Low-level input sensitivity: 0.15–6 V

• High-level input sensitivity: 0.5–12 V

• High-level connection: 10-pin cable connector

• Bass Level Remote Control: Yes

• Power and speaker connections: Sealed

• Heat Sink: Solid Aluminum

• Installation: Cast end caps with concealed mounting channels
  
  

Dimensions and Fuse Protection

• Width: 205 mm

• Height: 46 mm

• Length: 278 mm

• Required fuse: 1 × 60 A (external)
  
  

What's Included

• 1 × HiFonics MERCURY IV V2 4-Channel Amplifier

• 1 × Bass Level Remote Control

• 1 × Connection cable for bass level remote control

• 1 × 10-pin high-level connector harness

• 1 × User's Manual