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Soundstream SM4.10000D 1000W Max 4 Channel Stealth Series Marine Grade Class D Amplifier - SM4.1000D

  • Based on 284 reviews
Condition: New
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Availability: Only 4 left in stock, order soon!
Fulfilled by D-C-O

Arrives Tuesday, Oct 20
Order within 16 hours and 57 minutes
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Features

  • 90 watts RMS x 4 at 4 ohms (125 watts RMS x 4 at 2 ohms)
  • 250 watts x 2 bridged at 4 ohms
  • Mosfet power supply. Quick Disconnect RCA/High Level Wire Harness
  • Preamp and speaker-level inputs
  • Variable high- and low-pass filters (35-250 Hz, 12 dB/octave)

Description

Preamp and speaker-level inputs. Variable high- and low-pass filters (35-250 Hz, 12 dB/octave). It's a lot of power in a tiny package. At about 3" deep by 7-1/2" wide, the SM4.1000D 4-channel amp will fit just about anywhere, delivering 90 watts per channel to your front and rear speakers, or up to 250 watts per channel in 2-channel mode to your subs. If you're in need of an amplifier that takes up little space but delivers a big sound, Soundstream's Stealth amplifiers can fill the bill.

Item dimensions L x W x H: 7.5 x 3.88 x 1.5 inches


Voltage: 250 volts


Manufacturer: Soundstream


Maximum Supply Voltage: 12 volts_of_direct_current


Minimum Supply Voltage: 12 volts


Voltage: 250 volts


Maximum Supply Voltage: 12 volts_of_direct_current


Minimum Supply Voltage: 12 volts


Mounting Type: Boat Mount


Number of Channels: 4


Output Power: 250 watts


Maximum Output Power: 1000 watts


Item Dimensions: 7.5 x 3.88 x 1.5 inches


Material Type: Marine-Grade Materials


Manufacturer: Soundstream


Model: SM4.1000D


Brand Name: Soundstream


Number of Items: 1


Warranty Description: 1 Year Manufacturer


Unit Count: 1 Count


Global Trade Identification Number: 11


UPC: 709483051027 638353483111


Included Components: Amplifier^Manual


Item Weight: 2.2 pounds


Part Number: SM4.1000D


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • 1000 watt motorcycle amp
This is the perfect amp for your motorcycle boat sxs whatever … super compact and sounds amazing super good quality for the price was easy to install and has plenty of power highly recommend
Reviewed in the United States on June 24, 2026 by Randy gonzales

  • Loud for such a small amp
Used it for my harley stereo system and it works great!!
Reviewed in the United States on March 12, 2026 by Sedro

  • ease of installation
small compact lots of power
Reviewed in the United States on December 29, 2025 by Paul D'Antonio

  • Don’t waste your money
Purchased to use on a motorcycle, worked great for about a month. Now it won’t drive the speakers. Checked connections and power, power led comes on but almost nothing out of the amp. I had it tuned pretty good, gain knobs we’re only about 1/3 from bottom, now 100% and still nothing. Should have stuck with a hood name brand from the beginning. Chinese made garbage. ... show more
Reviewed in the United States on October 10, 2022 by Mitch

  • Perfect
Easy to install and directions were simple
Reviewed in the United States on March 29, 2026 by mack mangrum

  • compact size
small size was perfect to mount behind seat back on Honda talon 1000R plenty of power to handle the job.
Reviewed in the United States on December 5, 2024 by newellwking

  • using on a motorcycle
heat is definitely an issue mounted inside saddle bag, as soon as it heats up it cuts in and out at higher volumes. I knew it would be warm, but Didn't think it would produce that much heat. Cant even put hand on it so hot. looking for other options now
Reviewed in the United States on June 24, 2019 by William Chamberlain

  • Four Stars
has issues running at 2 ohms
Reviewed in the United States on May 31, 2018 by Z

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