Features
Inputs and Outputs
Specifications
Wiring Recommendation

Features

Channel Configuration: The XM-460GTX amplifier can operate in a 4-channel mode, or, by bridging the rear channels, operate in a 3-channel mode. You cannot bridge the front channels on this amplifier.

Protection Circuitry: This amplifier has 3-way protection circuitry which protects the amplifier in the following cases:

• Thermal: shuts off the amp when the operating temperature is too high
• Short circuit: shuts off the amp when the speaker outputs are short-circuited
• DC Offset: shuts off the amp when the speaker wires or ground lead is not securely connected, generating direct current

Power/Protector LED: The amplifier has an LED on the top panel which glows green when operating normally, and changes to red when the protection circuit is activated.

Built-in Crossovers: The XM-460GTX amplifier has the following built-in crossovers:

• Front Channels: High-pass crossover, continuously variable from 50-300Hz, with a slope of 12dB/octave. With the filter switch, you can select high-pass or "off" for full-range operation.
• Rear Channels: Low-pass or high-pass crossover, continuously variable from 50-300Hz, with a slope of 12dB/octave. With the filter switch, you can select low-pass, high-pass or "off" for full-range operation.

Low Boost: The front and rear channels have independent bass boost controls, allowing you to add up to 10dB of boost centered at 40Hz.

Level Control: This amp has independent level controls for the front and rear channels.

Speaker-level Input Harness: The amp comes with a 4-channel speaker-level input harness with a color-coded 8-pin Molex plug on one end. This allows you to more easily connect this amplifier to a factory deck or a receiver without preamp outputs.

Protection Cap: The XM-460GTX comes with a rubber protection cap that fits over the power/ground/remote terminals, helping to prevent accidental short circuiting.

Inputs and Outputs

Front of Amplifier:

• Front Line-In: RCA stereo jacks
• Rear Line-In: RCA stereo jacks
• High Level Input: an 8-pin input for use with the included 4-channel speaker-level input harness
• +12V (power): screw terminal (terminal is 0.57" wide)
• GND (ground): screw terminal (terminal is 0.57" wide)
• REM (remote turn-on): screw terminal (terminal is 0.34" wide)
• Speaker Outputs: screw terminals (each terminal is 0.34" wide)

Specifications

RMS Power Output:

• Four speakers:
  • 60 watts x 4 into 4 ohms (20Hz to 20kHz, 0.08% THD)
  • 75 watts x 2 into 2 ohms (20Hz to 20kHz, 0.1% THD)
• Three speakers:
  • 60 watts x 2 + 150 watts x 1 into 4 ohms (20Hz to 20kHz, 0.1% THD)

Maximum Power Output:

• Four speakers:
  • 120 watts x 4 into 4 ohms
  • 150 watts x 2 into 2 ohms
• Three speakers:
  • 120 watts x 2 + 300 watts x 1 into 4 ohms

Wiring Recommendation

Amplifier Wiring: This amplifier uses two 25-amp fuses, so its total fuse rating is 50 amps. The Streetwires 8-gauge amp wiring kits (item #s 211PS8B, 211PS8R, 211PS8BI, 211PS8RI) include a 60-amp fuse, which will accommodate the amp's fuse rating. Other 8-gauge amp wiring kits carried by Crutchfield include a 40-amp fuse. If you are using an 8-gauge amp wiring kit with a fuse rated less than 50 amps, the fuse should be replaced with a 50-amp AGU fuse (item #s 211AGU50, 142P50F4I, 575RP7590).