KAR 400.4 - ARC Audio 4 Channel 400 Watt Amplifier

Description:

The ARC Audio KAR 400.4 is a Class AB, 4-channel amplifier housed in a sleek, clear anodized aluminum chassis. The understated style looks classy and refined. The front two channels include a 12 dB-per-octave, fully-variable crossover from 55 Hz to 550 Hz. The front channels also include a 45 Hz bass boost that allows up to 18 dB of maximum boost. The rear channels include a 12 dB-per-octave, fully-variable crossover from 55 Hz to 5500 Hz via a “x10” frequency multiplier. The RCA connections and signal adjustments are located on one side of the ARC Audio KAR 400.4, while the power and speaker connections, along with the 40 amp fuse, are located on the other side. The gold-plated power and speaker screw terminal connections can easily accept either bare wire or fork terminals.

This amplifier performs as well as it looks. On the test bench, the ARC Audio KAR 400.4 delivered 70.2 watts x 4 into 4-ohms with less than 1% distortion. Into 2-ohms, the KAR 400.4 delivered 107.5 watts per channel into four channels. This KAR 400.4 exceeded is rated power around 40 percent — very impressive. Into 4-ohms bridged, the KAR 400.4 delivered a respectable 248.5 watts per channel into two channels for a total amplifier power of 497 watts. At peak power, the ARC Audio KAR 400.4 average slightly above 70 percent, efficiency drawing 27.8 amps at 4 ohms stereo and 47.7amps at 4 ohms bridged.

The ARC Audio KAR 400.4 is a solid performer. This amplifier has enough power and is flexible enough to drive your complete system. Or, you could use it as the beginning to a high-power, high end system of sonic goodness. If you’re looking for a great sounding amplifier with the ability to grow, the ARC Audio 400.4 would be an excellent choice.

Specification:

• Rated Output power: 50 watts x 4 @ 4 ohms, 100 watts x 4 @ 2 ohms, and 190 watts x 2 @ 4 ohms bridged
• Transient distortion: less than 0.1% @ 4 ohms
• Frequency response: 20 Hz-20 KHz
• S/N ratio(A wtg): greater than 95 dB
• Bass boost: + 18 dB @45 Hz
• Input sensitivity: 250 mV - 2.5 V
• Crossover: 55 Hz-5.5 KHz variable 12 dB
• Fuse: 40A x1
• Dimensions: 12 inches x 8 1/4 inches x 2 1/8 inches

KAR 400.4 - ARC Audio 4 Channel 400 Watt Amplifier KAR400.4