Arc Audio X2 1200.6 Six-Channel Amplifier | 150W x 6 | Class D

Power Output

All power ratings are rated continuous RMS at 14.4 volts. Channels 1 through 4 hold 150 watts at both 4 ohms and 2 ohms thanks to the adjustable rail voltage system. Channels 5 and 6 are the high-power pair, designed to run 2 ohms each in stereo or bridge together into a single 4-ohm subwoofer load.

One Amplifier, Four System Architectures

The 1200.6 is built to be the entire amplifier rack in a single chassis. Arc Audio documents four configurations: four-channel stereo high-pass with subwoofer, three-way active with tweeter, midrange and subwoofer, three-way with passive mid and tweeter plus midbass and subwoofer, and bridged three-channel stereo with subwoofer. That range is what makes this amp worth its footprint. A builder who would otherwise install a four-channel plus a monoblock can do the whole system on one amp, one power run, and one ground.

Two Bandpass Sections, Not Just High-Pass and Low-Pass

Channels 1 and 2 and channels 5 and 6 each have a full bandpass crossover section: high-pass, low-pass, and both together. Channels 3 and 4 have a high-pass with full-range bypass. Every low-pass and high-pass section except the fixed 12 dB per octave stages carries an X1 and X10 range multiplier, which moves the adjustment window from 50 to 500 Hz up to 500 Hz to 5 kHz. That is what allows a true active midrange band on channels 1 and 2 without an external processor. For DSP-based systems, every crossover switches to full-range and passes the signal untouched.

Load Select: Adjustable Rail Voltage

Channels 1 and 2 and channels 3 and 4 each have a Load Select switch that changes the amplifier's internal rail voltage to match the load. In the Under 4 Ohm position, the amp makes full power at 2 ohms stereo or 4 ohms bridged. In the Over 4 Ohm position, it makes full power at 4 ohms stereo or 8 ohms bridged. This is why the amp holds 150 watts per channel across both impedances instead of dropping output on higher-impedance loads the way a fixed-rail design would.

Input Select: Fewer Cables, Cleaner Installs

Two Input Select switches let channels 3 and 4 and channels 5 and 6 pull their signal from the channel 1 and 2 inputs, which removes the need for RCA Y-cables when the source unit only has one or two pairs of outputs. A separate master switch selects between four-channel stereo and bridged two-channel operation. In bridged two-channel mode, input 1 feeds the output of channels 1 and 2 and input 2 feeds channels 3 and 4, with the channel 1 and 2 crossover and gain controls governing the signal.

Balanced Differential Inputs and OEM Integration

The X2 1200.6 uses a balanced differential input stage compatible with unbalanced RCA, balanced DSP outputs, common-ground speaker-level outputs, and the bridged tied load outputs common on factory head units. Included speaker-level RCA pigtails carry a resistive divider network molded into the RCA end, which drops a high-power factory signal to a usable level without an external line output converter. DC Detect and Signal Detect auto turn-on modes monitor the channel 1 input and remove the need for a dedicated remote wire.

Level 2 Cosmetics

The 1200.6 carries Arc Audio's Level 2 cosmetic package: a silver brushed-aluminum hairline extruded shroud and an acrylic center badge that illuminates blue in normal operation and flashes diagnostic fault codes when something is wrong. The badge rotates in 90-degree increments to read correctly in any mounting orientation. All tuning controls sit under the removable shroud, so the finished install shows no exposed adjustment pots.

Front-Panel Diagnostics

The illuminated badge doubles as a diagnostic display. Distinct flash patterns identify heatsink thermal, transformer thermal, under voltage, over voltage, DC output protection, and shorted speaker faults, with separate codes for the low-power channels 1 through 4 and the high-power channels 5 and 6. On a six-channel amp driving a full active system, being able to tell which side of the amp faulted without pulling panels saves real diagnostic time.

Built and Backed

The Arc Audio X2 1200.6 carries a 1-year warranty through authorized Arc Audio dealers. Audio Intensity is an authorized Arc Audio dealer. Every unit we sell is brand new current production with full warranty coverage and lifetime tech support.