Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere.
That's because we have our own in-house Product Research team — they open the box,
verify contents, check the owner's manual, and record dimensions, features and specs.
We stay on top of new products and technologies to help people make informed choices.
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).