Features
Controls
Connections

Features

Channel Design: The Focal FPD 600.4 can be configured as a 4-channel, 3-channel, or 2-channel amplifier. The amplifier is stable to 2Ω in stereo and 4Ω when bridged.

CEA-2006 Compliant: CEA-2006 is a system of testing and measurement methods for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured into a 4Ω load, with 1% or less Total Harmonic Distortion plus noise (THD+N), and over a frequency range of 20 Hz to 20 kHz (for full range amplifiers). Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4Ω. CEA-2006 standards allow consumers to compare amplifiers on an equal basis.

Speaker Level Inputs: The RCA inputs will accept either speaker-level or line level signals from your car's head unit. A speaker level signal is connected to the RCA inputs using a speaker wire to RCA adapter (sold separately).

Auto Turn-on: When using a speaker level input, the amp will turn on automatically when it senses the input signal.

Controls

Front-mounted Controls: The amplifier controls are mounted on the front panel.

Level Control (Gain): The input level is independently adjustable for channels 1+2 and 3+4. The input range is 0.2 Volts to 8.0 Volts.

Route Switch: The three position Route switch configures the amps inputs:

• 1+2: all four RCA inputs are used
• 3+4: only inputs 3+4 are used, and are shorted to channels 1+2
• Copy: only inputs 3+4 are used; the input signals and filter settings are copied to channels 1+2

Crossover: The amp has independent crossover controls for channels 1+2 and 3+4:

• CH 1+2:
  • HP/Flat: choose high pass or flat (crossover is bypassed)
  • Frequency: set the crossover point when in high pass mode; rotary dial; 50 Hz-4 kHz
• CH 3+4:
  • Mode: choose flat (crossover is bypassed), high pass, or low pass/band pass
  • LP/BP: when the mode switch is set to low pass/band pass, choose which one with this switch
  • Frequency:
    • HP: set the crossover point when using as a high pass or band pass crossover; rotary dial; 50 Hz-4 kHz
    • LP: set the crossover point when using as a low pass or band pass crossover; rotary dial; 50 Hz-4 kHz
  • Mono/Stereo: set to mono when powering a subwoofer (or subwoofers); this also activates the wired subwoofer remote

Wired Remote: A wired subwoofer level control is included. The wired remote is only activated when the channel 3+4 crossover is set to low pass and mono. The remote has integrated flanges and screws are included to mount the unit under the dash. It includes a 15' cable to connect to the amplifier.

Connections

Front-mounted Terminals: All the connections are on the front of the amplifier for a clean installation.

Power Input: Two set-screw terminals are provided for connecting the power and ground cables. The terminals can accept up to 6-gauge wire (an 8-gauge wiring kit is sufficient for the 40-amp rating of the built-in fuses). The set screws are tightened/loosened with the included 3mm Allen wrench.

Remote Turn-on: The remote turn-on set screw terminal will accept up to 14-gauge wire. The set screw is tightened/loosened with the included 1.5mm Allen wrench.

Speaker Outputs: The four pair of speaker outputs set-screw terminals will accept up to 14-gauge wire. The set screws are tightened/loosened with the included 1.5mm Allen wrench.

Signal Input: The amplifier features two pair of stereo RCA inputs (labeled channel 1+2 and 3+4). If no line level signal is available, you will need two speaker wire to RCA adaptors (sold separately) to connect the amplifier to the source unit via speaker wires.

Remote Control: An RJ-25 jack for connecting the supplied remote bass control.

Fuses: The amp has two internal 20-amp ATO fuses. The bottom panel must be removed to access the fuses.