The Hifonics A800.4D is a compact Class-D four-channel full-range car amplifier from the Alpha series. It is 1-ohm stable and delivers 800 watts of total maximum power. It uses a pulse width modulated MOSFET power supply and a heavy-duty aluminum alloy heat sink.
It can run in four-channel mode or as a bridged two-channel amplifier. Accu-Cross crossovers let you control the signal sent to each speaker. Preamp RCA outputs allow you to daisy chain multiple amps. A wired remote bass level control is included.
Three-way protection circuitry covers thermal, overload and speaker short faults. A green LED shows power and a red LED shows protect status.
- Type
- Class-D 4-channel full-range car amplifier
- Total power
- 800 W max
- Power at 4 ohms
- 100 W x 4 channels
- Power at 2 ohms
- 200 W x 4 channels
- Bridged power
- 400 W x 2 channels at 4 ohms
- Impedance
- 1-ohm stable
- Frequency response
- 10 - 250 Hz
- THD
- <1%
- Signal-to-noise
- >95 dB
- Crossover modes
- 4CH / 2CH: DUPE / FULL / HPF; Bandpass: LPF / FULL / HPF
- High-pass crossover
- Variable, 20 Hz - 4 kHz (DUPE mode: 10 Hz - 4 kHz)
- Low-pass crossover
- Variable (DUPE mode), 50 Hz - 4 kHz, 12 dB/octave
- Bass boost
- 0 - 12 dB at 45 Hz
- Outputs
- Preamp RCA outputs
- Protection
- Thermal, overload and speaker short
- Indicators
- Green LED (power), red LED (protect)
- Power terminal
- 12V/GND: 8 AWG, 24 AWG
- Fusing
- External fuse required
- Included
- Wired remote bass level control
- Dimensions
- 13.62" W x 5.75" D x 2.37" H
- Weight
- 7 lbs