Big power and a Bluetooth® bonus

Pack a lot of power into a small space with Soundstream's ST4.1000DB 4-channel marine amplifier. Its efficient Class-D design combines stable performance, low power draw, and excellent sound quality into a small footprint that's a great match for boats, motorcycles, ATVs, or any application where space is tight. Built-in Bluetooth lets you play your favorite music directly from smartphones and other mobile devices without the need for a receiver or the hassle of cables and plugs. Whether you're out on the water or up on a mountain, that's a big benefit.

Awesome sound, anywhere you go

The amp features high- and low-level inputs so you can hook it up to factory and aftermarket radios, and quick-disconnect harnesses make the ST4.1000DB easy to install and remove. You can use the high- and low-pass filters to tailor the amp to your speaker set up, whether you're running full-range speakers or subs. A subsonic filter eliminates ultra-low frequencies that can muddy your sound, while the conformal-coated circuit board keeps the sound cranking when you're out getting wet or muddy.

The amp includes switchable white and black top plates, so you can choose the look which best matches your vehicle or vessel.

General Features:

• Soundstream Stealth Series ST4.1000DB
• Class-D FullRange 2-Ohm Stable 4-Channel Amplifier
• RMS Power Rating:
• 4 ohms: 90 watts x 4 chan.
• 2 ohms: 125 watts x 4 chan.
• Bridged, 4 ohms: 250 watts x 2 chan.
• Total power output: 1000 watts
• Bluetooth 4.0 for Wireless Mobile Device Playback
• Pulse Width Modulated MOSFET power supply
• LED power (green) and protect (red) indicators
• Soft start turn-on
• 4/3/2 channel operation
• Speaker-level (high-level) inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Input sensitivity: 200mV-12V
• Variable high-pass filter: 35- 250Hz, 12 dB/octave
• Fuse Rating: 30 A x 1
• Dimensions: 3"W x 7.75"L x 1.5"H
• Brand New
• 3 Year Warranty



Comes with 3 year StereoNeeds warranty. For any warranty issues please contact us.



• Our company has been in the stereo business for over 15 years
• We have sold on EBAY since 2000, so please bid with confidence.
• We have a 99% positive feedback rating on EBAY!
• We have very prompt shipping.
• We will gladly answer any technical questions you have.
• If you have any questions, problems, warranty issues, or concerns please contact us.