EPICFOUR

Overview: The EPICFOUR 4-channel amplifier is part of AudioControl's EPIC Series amplifiers, offering robust power and exceptional sound quality in a compact and thermally-efficient design. The Class-D amplifier is stable down to 2-ohms, and can be bridged.

Power: The AudioControl EPICFOUR can provide the following RMS output power (@ 14.4 V, < 1% THD):

• 100W x 4 @ 4-ohms
• 200W x 4 @ 2-ohms
• 400W x 2 @ 4-ohms (bridged)

Controls & Indicators: All of the EPICFOUR controls and indicators are located on one end of the amplifier and include:

• Gain (x2): A rotary gain control for channels 1/2 and 3/4 adjusts the overall level of the input signals.
• High-Pass Crossover (x2): A rotary HPF dial for channels 1/2 and 3/4 lets you set the cutoff frequency of the Linkwitz-Riley High-Pass Crossover; 50-500 Hz range with a 12 dB/octave slope; each filter includes an Off setting on the frequency cutoff dial.
• Input Mode: A 2-way switch determines which inputs will be feeding the four amp channels; options for 2Ch and 4Ch.
• Power/Protect LED: Illuminates Blue when the amplifier is powered on and working nominally, and will change to Red if the amp detects a fault.
• Max. Indicator: An LED next to the Gain dials will glow briefly during loud bursts of music when the gain has been set for optimum performance. If the Max. Indicator is frequently lit, the Gain may need to be lowered.

Connections: The EPICFOUR features set-screw wiring terminals that use the included 3mm, 2.5mm, and 2mm Allen (hex) keys for loosening/tightening. Connections include:

• Power & Ground: Power and Ground terminals will accept up to 2-gauge wire (4-gauge recommended); Remote In terminal accepts up to 8-gauge wire (18-gauge is usually sufficient). The EPICFOUR amplifier does not include any fuses; an 80A fuse (sold separately) should be placed in-line on the power wire, no more than 18" from the battery.
• Low-Level Inputs: Two pairs of RCA jacks are provided for connecting the amp to the source unit via RCA connections. The low-level inputs can accept audio signals from 500 mV to 6 V.
• Speaker Output: Four pairs of set-screw terminals, accepting wire up to 10-gauge, are provided for the four speaker output connections.

Protection: The EPICFOUR features AudioControl's Smart Auto Reset Protection Circuit that can automatically activate if the amplifier detects a problem, protecting it from Over-Current, Over/Under-Voltage, DC-Offset, and Over-Temperature. When the amp detects a fault, it will go into Protect mode, switching the power indicator from Blue to Red and shutting down.

• 4-channel car amplifier
  • 100 watts RMS x 4 at 4 ohms
  • 200 watts RMS x 4 at 2 ohms
  • 400 watts RMS x 2 bridged at 4 ohms
• Class D amp technology
  • frequency response: 10-22,000 Hz
• variable high-pass filters (Off/50-500 Hz, 12 dB/octave)
• preamp inputs only
• wiring, fuse, and hardware not included with amplifier:
  • 4-gauge power and ground leads and an 80A fuse recommended
• dimensions: 9.42"W x 2.01"H x 6.09"D

USER MANUAL