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Soundstream ST4.1000DB

4-channel marine/powersports amplifier with Bluetooth® — 90 watts RMS x 4

Item # 530ST410DB

Pack a lot of power into a small space with Soundstream's ST4.1000DB 4-channel marine amplifier.

Pack a lot of power into a small space with Soundstream's ST4.1000DB 4-channel marine amplifier.

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Item # 530ST410DB

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$179.99
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About the Soundstream ST4.1000DB

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.

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

This amp works with both factory and aftermarket radios, and quick-disconnect harnesses make the ST4.1000DB easy to install and remove. 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 having fun.

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

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Product highlights:

  • 4-channel marine/powersports amplifier
  • 90 watts RMS x 4 at 4 ohms (125 watts RMS x 4 at 2 ohms)
  • 250 watts x 2 bridged at 4 ohms
  • ideal for boats, ATVs, side-by-sides, golf carts, and more
  • silver chassis with switchable black or white top plates
  • built-in Bluetooth for audio streaming
  • variable high-pass filters (35-250 Hz, 12 dB/octave)
  • subsonic filter
  • Class D amp technology
  • MOSFET power supply
  • preamp and speaker-level inputs
  • fuse rating: 30A x 1
  • 10-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • dimensions: 8-11/16"W x 1-1/2"H x 3-1/8"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # ST4.1000DB

What's in the box:

  • 4-Channel Class D amplifier with a 30A ATM fuse installed
  • Two 8.5" Speaker-level input harnesses (with 5-pin Molex connectors on one end)
  • Two 5.5" Line-level input harnesses (Stereo female RCAs on one end and 5-pin Molex plug on other end)
  • 6" Thru-pass harness (with 5-pin Molex plugs on both ends)
  • 6" Speaker output harness (with 8-pin Molex connector on one end)
  • 6" Power harness (with 6-pin Molex connector)
  • Right-angled Bluetooth antenna (MCX male connector)
  • 40" Bluetooth antenna extension (male and female MCX connectors)
  • 4 Self-tapping screws (Length=5/8")
  • Owner's manual
  • Self-adhesive faceplate (white)
  • Self-adhesive faceplate (black)

Customer reviews

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Soundstream ST4.1000DB reviews

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Soundstream ST4.1000DB

Crutchfield customer from Liverpool, PA on 7/3/2019

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Used this as a stereo substitute - bluetooth my phone and music is right there. This little amp is compact; fits easily behind the batwing fairing of my HD. Plenty powerful. Easy to install.

Pros: Super small and compact. Very easy to wire.

Cons:

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0 of 0 found this helpful

Soundstream ST4.1000DB

Crutchfield customer from Chalfont, PA on 4/14/2019

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The wiring was a challenge both for I and tech support. Thought the amp was bad but a note from tech support after the third call was to hook up the orange wire instead of the blue remote wire. So their instructions are off a tad.

Pros:

Cons:

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0 of 0 found this helpful

Soundstream ST4.1000DB

Crutchfield customer from Emeigh, PA on 2/28/2019

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Put it in my goldwing sounds great and Bluetooth works great and costumer service is great . thanks

Pros:

Cons:

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0 of 1 found this helpful

Lots of Power in a Small Space!

Crutchfield customer from Winter Garden, FL on 1/30/2019

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I hooked up 4 Kicker 6 1/2 speakers and it totally rocks. Lots of power in a small space. My Golf cart has never sounded better! Easy BT connection and great sound clarity with power! Overall great value!

Pros: Small Powerful Easy BT connection Clarity of sound

Cons: None yet

Crutchfield response on

0 of 0 found this helpful

Perfect

Shana from Sidney, MT on 12/25/2018

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My husband was ecstatic when I got this for him for Christmas!

Pros:

Cons:

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0 of 0 found this helpful

Soundstream ST4.1000DB

Randy from Ford City, PA on 6/30/2018

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put this on my 08 Ultra Classic Harley awesome clear sound I did have to upgrade my speakers hog Tunes wouldn't handle the power

Pros: Worth the money

Cons:

Crutchfield response on

0 of 0 found this helpful

Soundstream ST4.1000DB

Brian from Corpus Christi, TX on 6/21/2018

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This little guy packs a very large punch. I love it.

Pros:

Cons:

Crutchfield response on

1 of 1 found this helpful

Soundstream ST4.1000DB

Crutchfield customer from Manchester, TN on 4/25/2018

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Awesome

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Soundstream ST4.1000DB

Heath from Mc Queeney, TX on 2/5/2018

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My customer wanted to put in a Bluetooth system, we installed the amp, put a 8" sub on it, and 2 6.5 speakers, the system is impressive considering the amout of money invested it. Customer was extremely pleased.

Pros: Small, compact, required 8 gauge wire. Easy to use, price was awesome.

Cons: I don't really have a con, I feel I we got more than we paid for.

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1 of 1 found this helpful

Soundstream Service Sucks

Russ from West Palm Beach, FL on 7/28/2017

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The st4 1000db amplifier produces sound but my problems are with how Soundstream offers to handle warranty issues or returns. I had an antenna fall off the amp because the mount was not secured correctly internally to the amp. Soundstream offered a new antenna but with out the mount which does no good. Initially, I could not pair to the amplifier which turned out to be the antenna mount. All in all the Bluetooth never worked and still doesn't since Soundstream will not switch out my amplifier. I have a shiny doorstop which looks like a Bluetooth amplifier. I should have bought it through Crutchfield.

Pros: Small and compact

Cons: Issues with amp and customer service at Soundstream

Crutchfield response on

3 of 12 found this helpful

Good Product & Great Customer Support

Richard from Lowell, IN on 5/17/2017

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This amp was paired with four Kicker 4" two-way speakers and installed on a 1998 Goldwing. It provides crisp clean power that allows me to listen to undistorted music at volumes that overcome wind and traffic noise. I disagree with the "Not for motorcycles" review. By properly adjusting the gain, I was able to get plenty of volume using bluetooth and my phone. The small size allowed convenient installation in a saddlebag. The instruction manual was lacking in detail but one call to the Crutchfield support team provided all the information I needed. Great product and outstanding support from Crutchfield.

Pros: Bluetooth capability / Good power in a compact package / Outstanding customer support from Crutchfield team

Cons: None

Crutchfield response on

4 of 4 found this helpful

Be cautious

Robert from Houston, Tx on 5/2/2017

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Be careful, ended up changing to a different amp. Amp is good for the money, Bluetooth works well and very small package. Did not give me the sound and range I needed for full range 6x9 and was limited on control of the channels and crossover.

Pros: Great price small package and Bluetooth built in works great

Cons: Wiring instructions and setup info lacking, not enough control over channels, bridging and crossover, ended up changing to a different one

Crutchfield response on

0 of 0 found this helpful

Soundstream ST4-1000DB

Crutchfield customer from Goodyear, AZ on 10/28/2016

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So I searched for a reasonable priced amp that I could put in my Polaris ranger that was Bluetooth capable and couldn't find one until I came across this one. I can connect my phone directly to the amp to play music with out any wires between. The rms power is exactly what I was looking for. I was looking for an amp that was bridgeable. I have 2 6.5in speakers and a 10 in sub and the amp has absolutely no problems. The sound is perfect even going 50 mph down the road. I recommend this amp to anyone that may be in the same boat. It is a small size which allows it to fit anywhere. I am looking to put this amp in my truck as well with a similar set up to my ranger.

Pros: Small size, big power easy install. Bluetooth

Cons: None yet

Crutchfield response on

5 of 5 found this helpful

Great mini Bluetooth amp

Ken from Georgia on 10/3/2016

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Great small amp for anyone thats using Bluetooth as your source of music. I have a victory cross country 8ball with speakers in the front faring and both bags but no head unit. This amp allows me to connect all my speakers and stream music directly to it. Once you adjust the gain trust me this lil amp have a powerful punch. I just ordered another one so I can put one on the 2 front speakers 6.5 polk audio and one on the 2 rear speakers 8" full range fosgate.

Pros: Small compact Bluetooth and can be used hardwired if you do not want to use bluetooth or have a head unit. Able to control everything from my Bluetooth device.

Cons: None that I can think of its been a great addition to my motorcycle.

Crutchfield response on

6 of 6 found this helpful

Not for motorcycles

bryan432 from Midland, TX on 9/21/2016

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I bought this to go on my 2011 Harley Ultra Classic. My head unit did not have blue tooth tech. Did not work out at all. With this amp, you have to choose, amp with blue tooth or no amp & use head unit for radio ect... One other thing, the phone (or whatever is streaming your music via blue tooth) controls volume. The radio with amp was Way louder than when I hooked up this amp to speakers and put my IPhone on max volume.

Pros: ???

Cons: Not made to work With a head unit & volume very very low.

Crutchfield response on 9/26/2016
Whenever you encounter a problem with anything you purchase from Crutchfield, especially a situation like this, please contact our Customer Support team. Purchases from Crutchfield can be returned or exchanged within 60 days of the purchase.

14 of 29 found this helpful

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Pros:

Cons:

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Product Research

Features
Connections
Specifications

Features

Overview: The Soundstream Stealth-series amplifiers pack a powerful punch from a small chassis. This 4-channel, full-range Class D amplifier can drive two pairs of speakers without taking up a lot of space. The ST4.1000DB is equipped with Bluetooth 4.0 that lets you wirelessly play audio from a smartphone or other mobile device. You can also customize the look of your amplifier with exchangeable top plates in black and white.

Note: The amplifier does not have a low-pass filter, and is not recommended for powering subwoofers.

Power Output: The ST4.1000DB micro-mini amp delivers 90 watts x 4 channels at 4 ohms, and 125 watts x 4 at 2 ohms. Bridged output is 250 watts x 2 (4 ohms).

Bluetooth: The amplifier has a built-in Bluetooth receiver that lets you wirelessly connect to your smartphone or other mobile device. You can play digital music files stored on your phone, or stream music from internet radio stations and other music sites. The Bluetooth signal will override the signal being input through the wired connection. When the Bluetooth source is turned off, the wired signal will resume. The amp includes an omnidirectional antenna with a 40" extension for best reception. Bluetooth has a connection range of approximately 30 feet (10 meters).

Marine, Motorcycle, Utility Vehicles: The ST4.1000DB has a conformal coating that protects the printed circuit board from water and salt air. This allows you to install the amp in locations that may be subjected to moisture, such as in an ATV, motorcycle, or on a boat.

Note: Because the controls and connections are not completely sealed, installing the amplifier in a location that is subjected to frequent splashes or submersion is not recommended.

High/Low Level Input: The amp includes plug-in harnesses for both high-level and low-level inputs. Speaker wires from the source unit can be spliced onto the two supplied high-level input harnesses. If you're using the preamp outputs from the source unit, you can plug in your RCA cables into the two low-level input harnesses. Both harnesses have a 5-pin Molex connector that plugs into the amp's Hi/Lo Input.

Note: If you're using the high-level inputs, you do not need to run a remote turn-on lead. The amplifier will automatically turn on when it senses an input signal.

Thru-pass Output: The ST4.1000DB features a thru-pass connection that allows you to daisy-chain multiple amplifiers without having to run additional input signals from the source unit. The 6" thru-pass harness consists of 5-pin Molex connectors on each end that you can connect between amplifiers to output the audio signal to another amplifier.

LEDs: The amp features two LEDs on one end to indicate the status of the amplifier. The green LED will glow when the power to the amplifier is on. When the red LED glows, the amplifier's protection circuitry is engaged, shutting down the amp. On the other side, a blue LED glows with the amp is connected to a mobile device via Bluetooth.

Protection Circuitry: The protection circuitry will shut down the amplifier for the following conditions:

  • Overheating: Thermal protection can be caused by too low of an impedance or inadequate air flow around the amplifier.
  • Over-/Under-Voltage: The amp will shut down if the voltage to the amp is not within 10 to 16.8 Volts DC range.
  • Short Circuit: When speaker wires become shorted to each other or to the vehicle chassis, the amplifier will shut down.

Controls: The ST4.1000DB's controls are located on the top of the amplifier. There are two sets of controls, one for the front channels (1&2) and one for the rear channels (3&4). The controls include:

  • Gain: The rotary gain controls let you match the amp's input sensitivity to the output of the source unit. The input sensitivity range of the amplifier is continuously variable between 0.5V and 12V. A small screwdriver (not included) is required to set the gain.
  • Crossover: The amp features independent 12 dB/octave high-pass crossovers that can be set between 35Hz and 250Hz using the rotary controls.
Note: The manual incorrectly states that the amplifier also has a low-pass crossover.

Connections

Molex Connections: The Soundstream ST4.1000DB uses compact Molex connectors which plug into the amplifier for the amp's input (RCA), amp input (speaker level), thru-pass, speaker output, and power/ground/remote turn-on connections.

Power: The Power/Ground/Remote harness contains two 16-gauge red +12V power wires. These should both be spliced to your power wire (not included) which runs from the amp to the battery. You should use at least a 10-gauge power wire to the battery, with an in-line 30A fuse no more than 18" from the battery terminal.

Ground: Like the power wires, there are two 16-gauge black ground wires. Both should be spliced to a larger gauge ground wire (not included) and attached to a metal area close to the amplifier. The ground wire should be the same gauge as the power wire.

Remote Turn-On: The blue wire in the harness is for the amplifier's remote turn-on circuit. This should be spliced to a remote wire (18-gauge typically) that runs to the source unit. This connection is not needed if you are connecting the amplifier to the source unit via a high-level input.

High-Level Input: If you're connecting the amplifier to a factory head unit, or a unit that does not have preamp outputs, you should use the amp's high-level input. Splice the source unit's speaker wires to the two High-Level Input harnesses and plug them into the amp's Molex connectors.

Low-Level Input: The amp's two Low-Level input harness each have two female RCA connectors that will accept the plugs of an RCA patch cable from the head unit. The other end plugs into the amp's Molex connector.

Speaker Outputs: The amp features a speaker output harness with connections for 8 speakers. Speaker wires should be spliced onto the speaker output harness.

Specifications

  • Frequency Response: 20Hz - 30kHz
  • Total Harmonic Distortion: <0.05%
  • Signal-to-Noise Ratio: 106dB
  • Input Sensitivity: 0.5V - 12V
  • Dimensions: Width 8.672", Height 1.465, Depth 3.095"

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
I like the bluetooth feature [ Kenneth  Jun 11, 2018 ]
A
it looks compact and will fit in my saddle bags no extra bluetooth recievers i have to buy [ tyrone  Aug 28, 2017 ]

10 questions already asked

Q
What size power wire should be used for this amp? I am taking out a head unit in my boat and replacing with this and a bluetooth controller. Can i Just use the existing wire that went to the head unit?
[ David  May 09, 2019 ]
1 answer
A
whatever gauge is recommended for that power source I personally got a 16 gauge and I installed my speakers on my motorcycle. Sounds powerful!Enter
[ JAMIE  May 25, 2019 ]
Q
good mornig. I couldn´t find Low Pass Crossover, I only saw 2 High Pass Crossover. It´s rear High Pass Crossover really Low Pass???
[ Ezequiel  Dec 06, 2017 ]
1 answer
A
Filters on the soundstream st4.1000db filter out lower frequencies that are ment for a subwoofer. I don't know if they are labeled right.
[ Milan  Dec 08, 2017 ]
Q
What are the actual dimensions of the amp? In the Overview it says dimensions: 6-1/2"W x 1-1/2"H x 3"D and in the Details tab it says its 8-11/16" wide. One will work for my application, the 8-11/16" will not.
[ David  Oct 03, 2017 ]
2 answers
A
It's 61/2
[ WALTER  Oct 04, 2017 ]
A
Its actualy pretty small think the 6 1/2 i fit it in a zx 14 sport bike under seat and a tail faring of 06 gsxr 1000
[ ricco  Oct 04, 2017 ]
Q
Does this amp come with the connectors needed to plug everything in? I see that theyre not the 'insert wire and tighten down' type of connectors on most automotive style amps.
[ Matthew  May 30, 2017 ]
4 answers
A
No. You provide your own connectors. There are wired plugs provided with bare wire at the other end to attach your connectors.
[ Luis  Jun 09, 2017 ]
A
This amplifier is supplied with multi-pin connectors for low-level input (RCA connectors), high-level input, speaker output, and power. Each connector is equipped with approx. 6" of wiring, allowing connection using butt connectors or similar. The Crutchfield technical support team answered all of my questions.
[ Richard  Jun 01, 2017 ]
A
It comes with all required plugs for installation
[ James  May 30, 2017 ]
A
Yes it comes with all wires. All you have to buy separate are amp power wires 10 guage recommended.
[ kenneth  May 30, 2017 ]
Q
I roll a Road Glide...I would prefer to not need to handle my phone while riding. If I leave my phone volume up can I still manipulate the volume with my deck controller? I would think so. ????
[ SL117  Oct 09, 2016 ]
3 answers
A
Please let me know how you like the purchase.
[ BRYAN  Oct 10, 2016 ]
A
Ok, auto correct on iPhone took over. Buy it if you like it. I spent 700$ trying to get the amp to work and the factory amp was louder and worked.
[ BRYAN  Oct 10, 2016 ]
A
The answer is NO. I bought thinkers no the same thing and it turned it that 700$ later that it was better and LOUDER to Keep the Harley amp that was already on my. Don't buy this thinking it will take the place of your radio.
[ BRYAN  Oct 10, 2016 ]
Q
Is there a dyno for this amp? And can 2 channels be brigded and the other 2 channels run as normal? If it can work this way would i need 2 or 4 ohm speakers when running 2 channels brigded?
[ Goober  Sep 15, 2016 ]
1 answer
A
The Soundstream ST4.1000DB's rear channels can be bridged for 3-channel operation; it produces 250 watts RMS and is only stable at 4 ohms bridged. If you have any further questions about the Soundstream amp, feel free to contact an Advisor directly by phone (1-800-324-9695) or online chat. I hope that helps!
[ Larry  Sep 20, 2016 ]  Staff
Q
I know a phone provides the sound but as far as volume goes is it better to have a bluetooth controller with this amp ( would it allow you to play music louder than the volume control on the smart phone)?
[ Goober  Sep 15, 2016 ]
1 answer
A
There's no separate remote control available for the Soundstream ST4.1000DB amplifier. You can adjust the gain settings on the amp, but the volume would be controlled from your smartphone/Bluetooth device. I hope that helps! My bio: http://www.crutchfield.com/Support/Bio.aspx?bio=159
[ Larry  Sep 20, 2016 ]  Staff
Q
How does it allow you to play from your smart phone? don't you have to connect to the deck someway?
[ gary  Sep 10, 2016 ]
3 answers
A
I have no problem hooking up to bluetooth
[ WALTER  Oct 04, 2017 ]
A
I had a lot of trouble getting it to Bluetooth to my smart phone. Would work one time but not the next. I returned it & bought a JLAudio amp & superate blue tooth device. Works beautifully!
[ greg  Sep 16, 2016 ]
A
Nope you just hook up amp too speakers and sync amp to phone and its that easy
[ WALTER  Sep 10, 2016 ]
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