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Sony XM-S400D

400W Peak (180W RMS) Class D S Series 4 Channel Car Amplifier

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• 45 watts x 4 channel @ 4 ohm
• Total RMS Power: 180 watts
• Class D 4 ohm Stable 4-Channel Amplifier

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Product Highlights


• 45 watts x 4 channel @ 4 ohm
• Total RMS Power: 180 watts
• Class D 4 ohm Stable 4-Channel Amplifier

Description


Sony brand icon

Authorized dealer


Sony XM-S400D

Power up your in-car sound with the XM-S400D stereo amplifier. Each of the amplifier’s 4 channels deliver 100W of 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.


Product Details:

  • S Series Class D 4 ohm Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohm: 45 watts x 4 channel
    • 2 ohm: 45 watts x 4 channel
  • Total power output: 180 watts
  • LED Power/Protect Light
  • Speaker-level (high-level) inputs
  • Signal sensing remote turn-on
  • Low and high pass filters for accurate sound
  • Overload protection circuit and speaker level input
  • Input sensitivity: 1 - 8 volts
  • Frequency Response: 20 - 20000 Hz
  • Total Harmonic Distortion (THD): 0.08%
  • Signal to Noise Ratio: 100 dB
  • Fixed high-pass filter: 120 Hz @ 12 dB/oct
  • Fixed low-pass filter: 120 Hz @ 12 dB/oct
  • Fuse Rating: 15A
  • 12 AWG gauge amplifier wiring kit is recommended for installation
  • Dimensions: 7-1/4" L x 2-1/2" W x 1-1/2" H
  • Authorized Internet Dealer
  • 3 Year Manufacturer's Warranty
  • MFR #: XM-S400D


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Specifications & Details


Key Features
Amplifier Key Features
Compact Design
Speaker Level Inputs
Power Specifications - Full Range Channels
RMS Power @ 4 ohms
45 watts x 4 channel
RMS Power @ 2 ohms
45 watts x 4 channel
Power Specifications - Full Range Channels
Peak Power @ 4 ohms
100 watts x 4 channel
Amplifier Specifications
Series
S Series
Amplifier Class
D
Number of Channels
4-Channel
Total Peak Power Output
400 watts
Total RMS Power Output
180 watts
Maximum Input Gauge Size
12 AWG
Minimum Impedance Unbridged
4 ohm
Minimum Impedance Bridged
Not Bridgeable
Frequency Response
20 - 20000 Hz
THD at Rated RMS Power
0.08%
Speaker Level Inputs
Yes
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
0 - 120 Hz
Low-Pass Crossover Frequency
0 - 120 Hz
Signal-to-Noise Ratio
100 dB
Remote bass/level controller
No
Fuse Rating
15A x 1 
Total Fuse Rating
15
Strappable
No
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
1 - 8 volts
High-Level Input Sensitivity
1 - 8 volts
What is in the box?
Paperwork
User manual
Warranty/Registration card
WITB: Amplifiers
Amplifier
Mounting screws (4)
High-level input wiring harness w/ molex connector
Warranty and Return Policy
Parts Warranty Duration
3 years
Labor Warranty Duration
3 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

XM-S400D

Weight:

0.90lbs

Internal SKU:

xms400d

Internal Product ID:

113553

Product and How-to Videos


Customer Ratings & Reviews


Sony XM-S400D thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
3
Design
5
Usability
5

Customer Reviews

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Powerful little brick!

My desktop setup is: Pioneer mvh-x580bs, this amp and a 30amp power supply. It's a home audio setup using car audio equipment.
I made bookshelves using 6.5" Silver Flute and NVX xsptw tweeters. The Pioneer deck has active crossovers (2 way plus sub).
It all sounds absolutely amazing! The bookshelves are .46 cubic feet each with a port. I do have an 8" powered sub to fill in the lows.
This little amp is so clean. Only gets very warm, but not too hot to touch. I don't worry about it as it has thermal protection included. There is no Gain control. I don't care, the amp sounds great.
I plan on putting a video demonstration on youtube soon.

Cons: Crossover is not useful at 120hz.It's not bridgeable either.

By Norb on April 5, 2017

30 found this helpful


By Austin on April 26, 2025 Checkmark Icon Verified purchase

2 found this helpful




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