Inputs and Outputs Notes
Channel Configuration: The
XM-4600GTX 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
Protection Circuitry: This
amplifier has 3-way protection circuitry which protects the amplifier in the
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-4600GTX amplifier has the following built-in crossovers:
- Front Channels: High-pass
filter, continuously variable from 50-300Hz, with a slope of -12dB/octave.
With the filter switch, you can select high-pass or "off" for
- Rear Channels: Low-pass
or high-pass filter, 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.
Protection Cap: The
XM-4600GTX comes with a plastic protection cap that fits over the
power/ground/remote terminals, helping to prevent accidental short circuiting.
and Outputs Notes
Power/Ground Terminals: The
power and ground screw terminals are 0.54" wide to easily accommodate up to
Speaker-level Input Harness: The
amp comes with a 4-channel speaker-level input harness with an 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.
Bridging the Amplifier: When
bridging the amplifier's rear channels, the subwoofer's speaker wires are
connected to the left positive and right negative speaker terminals.
RMS Power Output (supply voltage at
- 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
Current Drain: at rated output:
31A (at 4 ohms)
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. Some 4-gauge wiring kits also include a 60-amp fuse (Scosche--142AKPA14, Rockford Fosgate--575CP4CKDS).
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).
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