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Power up your in-car sound with the XM-S400D stereo amplifier. Each of the amplifier's channels delivers high dynamic audio, while low and high pass filters separate the frequency range to ensure a more accurate sound stage. The speaker-level input makes installation easy, even with integrated head units.
Q: Does this amp need a wiring kit? Direct hookup to the battery or can it be powered off fuse box?
A: Hi Chris, please refer to pg.6 of the link below for more information about the power connections. I hope it helps. Thanks! ^Ron https://docs.sony.com/release//Manual_4581373112.pdf
A: Hi BrianK, Both Low-Pass Crossover and High-Pass Crossover are FIXED in this car stereo. Thanks, >Joffrey

Power up your in-car sound with the XM-S400D stereo amplifier. Each of the amplifier's channels delivers high dynamic audio, while low and high pass filters separate the frequency range to ensure a more accurate sound stage. The speaker-level input makes installation easy, even with integrated head units.

Soundigital 400.4 EVOX2 4 OHM 400 Watt RMS 4 Channel Amplifier

The Pioneer GM-DX874 four-channel amplifier will deliver up to 150 watts RMS to each of your front and rear speakers for powerful music. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a compact chassis that fits in a lot of out of the way spaces. The frequency response of this amplifier stretches up to 50,000 Hz, for Hi-Res Audio Certified playback. Pioneer uses high-grade electronic parts and gold-plated RCA connections to ensure maximum performance. Speaker-level inputs allow you to install this amp in a factory system with no RCA connections. The amplifier switches its input mode automatically when it detects the high-level signal, eliminating the need to run a turn-on lead to your receiver or fuse box. Built-in high- and low-pass filters let you adjust the sound for your vehicle's interior, whether you're driving speakers or subs.

Upgrade your sound system with this compact Kenwood Marine Motorsports 4-channel amplifier. It delivers 400W total power for crisp, clear tones, and the conformal-coated circuit board keeps out moisture and salt for safe use in both land and water vehicles. This compact Kenwood 4-channel amplifier is easy to install in tight spaces for added versatility.
| Pros for Sony - XM 400W Class D Digital Multichannel MOSFET Amplifier with Built-In Crossovers - Black | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | Sound Quality, Power, Size, Installation Ease | Sound Quality, Power, Size, Ease of use, Installation |
| Cons for Sony - XM 400W Class D Digital Multichannel MOSFET Amplifier with Built-In Crossovers - Black | |||
| There were no cons for this product— | There were no cons for this product— | Heat Dissipation | Heat |
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