StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai › Soundstream › Monoblock Car Amplifiers
Soundstream
SOUNDSTREAM ST1.1000D 500W RMS STEALTH SERIES CLASS-D MICRO MONOBLOCK AMPLIFIER

SOUNDSTREAM ST1.1000D 500W RMS STEALTH SERIES CLASS-D MICRO MONOBLOCK AMPLIFIER

5(1 rating)

Best price now

$105.52at AmazonChecked 2 h ago

27% under what the other stores charge

Compared across 10 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

Visit Amazon

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Lowest price today: $105.52 at Amazon (checked Nov 12, 2026).
  • Checked at 10 stores.

Our take on the SOUNDSTREAM ST1.1000D 500W RMS STEALTH SERIES CLASS-D MICRO MONOBLOCK AMPLIFIER

The Soundstream ST1.1000D is a tiny Class-D monoblock car amplifier rated at 350W RMS into 4 ohms and 500W RMS into 2 ohms, with a 1,000W max rating. Its footprint of roughly 7.75 by 3 by 1.5 inches lets it hide behind a seat or in a small cavity where full-size amps won't fit. It includes a dash-mount remote gain knob, high-level inputs with automatic turn-on, and variable high-pass, low-pass and subsonic crossovers. It suits drivers who want clean subwoofer power without giving up trunk space, though its power output is modest next to larger monoblocks.

Best forSpace-limited installs behind a seat or in a small cavityPowering a single subwoofer at 2 ohmsFactory-radio upgrades using high-level inputsBudget-minded builds that want a remote bass knob
Pros
  • Very small chassis for a monoblock amp
  • Rated 500W RMS at 2 ohms
  • Includes dash-mount remote gain control
  • High-level inputs with automatic signal-sensing turn-on
  • Variable low-pass, high-pass and subsonic crossovers plus bass boost
  • Hybrid aluminum heatsink and protection circuitry
Cons
  • 350W RMS at 4 ohms is modest for power-hungry subs
  • 2-ohm minimum impedance limits very low-load setups
  • No digital signal processing or smartphone control
  • Bass boost can muddy sound if overused

SOUNDSTREAM ST1.1000D 500W RMS STEALTH SERIES CLASS-D MICRO MONOBLOCK AMPLIFIER prices at every store

  • WalmartNew

    In stockSold by epsilonelectronicsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $108.16Free shippingChecked 2 h ago
    Visit Walmart
  • eBayNew

    In stockSold by stereo-needs

    $128.90Free shippingChecked 2 h ago
    Visit eBay
  • SoundstreamNew

    In stock

    $179.99Free shippingChecked 2 h ago
    Visit Soundstream
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $105.52Free shippingChecked 2 h ago
    Visit Amazon
  • Online Car StereoNew

    Availability unknown

    $132.53Checked 2 h ago
    Visit Online Car Stereo
  • Qualitymobilevideo.comNew

    Availability unknown

    $139.99Checked 2 h ago
    Visit Qualitymobilevideo.com
  • SearsNew

    Availability unknownSold by Mac Marvel's

    $143.75Checked 2 h ago
    Visit Sears
  • KARTiTNew

    Availability unknown

    $144.64Checked 2 h ago
    Visit KARTiT
  • eBayNew

    Availability unknownShips from Canada · duties may apply

    $189.00Checked 2 h ago
    Visit eBay
  • LifeAfterBassNew

    Availability unknown

    $199.95Checked 2 h ago
    Visit LifeAfterBass

Also available at

  • WalmartCheck price at Walmart

Store links may earn us a commission.

SOUNDSTREAM ST1.1000D 500W RMS STEALTH SERIES CLASS-D MICRO MONOBLOCK AMPLIFIER price history

Lowest price we've seen: $105.52 on Nov 13 at Amazon. Tracked across 10 stores since Nov 13.

About the SOUNDSTREAM ST1.1000D 500W RMS STEALTH SERIES CLASS-D MICRO MONOBLOCK AMPLIFIER

The Soundstream ST1.1000D is a Class-D micro monoblock car amplifier from the Stealth Series. It is a full-range amplifier with a 1,000-watt maximum power rating. It delivers 350 watts RMS x 1 at 4 ohms and 500 watts RMS x 1 at 2 ohms. The minimum impedance is 2 ohms.

The amplifier has a hybrid aluminum alloy heatsink for heat dissipation. Its MOSFET power supply uses IRTM transistors, and the circuit board is military-grade SMT. Direct short, thermal and overload circuits protect the amplifier.

It accepts high-level or low-level RCA input from 200mV to 12V. It turns on automatically when it senses a high-level signal. The variable 12dB high-pass, low-pass and subsonic crossovers and a 12dB bass boost are built in. A dash-mount gain control module is included. The RCA/high-level wire harness and the power and speaker output harness are quick-disconnect.

Type
Class-D micro monoblock amplifier
Max power
1,000 watts
RMS power at 4Ω
350 W x 1
RMS power at 2Ω
500 W x 1
Minimum impedance
2 ohms
Input
High-level or low-level RCA, 200mV to 12V
Crossovers
Variable 12dB high-pass, low-pass and subsonic
Bass boost
12dB
Protection
Direct short, thermal and overload
Turn-on
Automatic, by high-level signal sensing
Heatsink
Hybrid aluminum alloy
Connections
Quick-disconnect RCA/high-level harness, power and speaker output harness
Included
Dash-mount gain control module (remote gain control)
Dimensions
7.75" x 3" x 1.5"

Specifications

color
MulticolorSource
size
7.75" x 3" x 1.5"Source

Questions and answers

How much power does the ST1.1000D actually make?
Soundstream rates it at 350W RMS into 4 ohms and 500W RMS into 2 ohms, with a 1,000W max figure. Plan your subwoofer around the RMS numbers, not the max rating.
Will it fit in a tight space?
Yes. The chassis measures about 7.75 inches long, 3 inches wide and 1.5 inches tall, small enough for behind a seat or a shallow cavity.
Can I connect it to a factory radio?
Yes. It has high-level inputs with automatic turn-on signal sensing, so it can take speaker-level signal from a stock head unit without a separate remote wire.
What subwoofer impedance should I use?
It is stable down to 2 ohms, so a single 2-ohm subwoofer or a dual 4-ohm sub wired to 2 ohms gets the full 500W RMS rating.
Does it come with a bass knob?
Yes. A dash-mount remote gain control module is included, so you can adjust subwoofer level from the driver's seat.
What crossovers does it have?
It has variable 12dB high-pass, low-pass and subsonic crossovers, plus a 12dB bass boost for low-octave emphasis.
Where is the SOUNDSTREAM ST1.1000D 500W RMS STEALTH SERIES CLASS-D MICRO MONOBLOCK AMPLIFIER cheapest?
At Amazon, for $105.52, 27% under what the other stores charge, as of our latest check.
What do buyers say about the SOUNDSTREAM ST1.1000D 500W RMS STEALTH SERIES CLASS-D MICRO MONOBLOCK AMPLIFIER?
Rated 5 out of 5 from 1 ratings.
Where can I buy the SOUNDSTREAM ST1.1000D 500W RMS STEALTH SERIES CLASS-D MICRO MONOBLOCK AMPLIFIER?
9 stores we checked sell it, including Walmart, Amazon, eBay, Online Car Stereo, Qualitymobilevideo.com.

Stores we've priced the SOUNDSTREAM ST1.1000D 500W RMS STEALTH SERIES CLASS-D MICRO MONOBLOCK AMPLIFIER at

  • Sears deals and prices
  • Walmart deals and prices

More from Soundstream

  • S
    Soundstream Xtreme 1 Ohm 6000 Watts Monoblock Class D Amplifier TXP1.6000D
    Soundstream Xtreme 1 Ohm 6000 Watts Monoblock Class D Amplifier TXP1.6000D
  • S
    Soundstream VRCPAA-106 10.6” Double-DIN CD/DVD Floating Touch CarPlay Android
    Soundstream VRCPAA-106 10.6” Double-DIN CD/DVD Floating Touch CarPlay Android
S
Soundstream VRCPAA-7DR 7" Double Din Car Stereo w/ Wireless Apple CarPlay & Android Auto
Soundstream VRCPAA-7DR 7" Double Din Car Stereo w/ Wireless Apple CarPlay & Android Auto
  • S
    Soundstream 10.6" Touchscreen 2 DIN Multimedia Car Head Unit with Back up Camera
    Soundstream 10.6" Touchscreen 2 DIN Multimedia Car Head Unit with Back up Camera
  • S
    Soundstream SHAD-9H Universal Headrest Mount DVD Player
    Soundstream SHAD-9H Universal Headrest Mount DVD Player
  • S
    Soundstream VRCPAA-70MW 7" Double DIN Touchscreen Digital Multimedia Receiver
    Soundstream VRCPAA-70MW 7" Double DIN Touchscreen Digital Multimedia Receiver
  • S
    Soundstream Stealth Series ST4.1000D 4-Channel Class D Amplifier
    Soundstream Stealth Series ST4.1000D 4-Channel Class D Amplifier
  • S
    Soundstream Xtreme 3500 Watts Monoblock Class D Amplifier TXP1.3500D
    Soundstream Xtreme 3500 Watts Monoblock Class D Amplifier TXP1.3500D
  • All Soundstream deals and products →

    More car amplifiers

    • P
      Power Acoustik OD1-7500D 7500 W Max 1-CH Monoblock Class-D Car Audio Amplifier
      Power Acoustik OD1-7500D 7500 W Max 1-CH Monoblock Class-D Car Audio Amplifier
    • M
      Monoblock Car Amplifier
      Monoblock Car Amplifier
    • R
      Rainbow Dream 0.5K Mono 500W Class D Amplifier
      Rainbow Dream 0.5K Mono 500W Class D Amplifier
    • G
      Genius Audio PX1500.1D Compact 1-Channel Class D Amplifier
      Genius Audio PX1500.1D Compact 1-Channel Class D Amplifier
    • G
      Genius Audio ZR800.1D Mini Compact Class D Amplifier
      Genius Audio ZR800.1D Mini Compact Class D Amplifier
    • M
      Monoprice SWA-400 400-Watt Subwoofer Amplifier with DSP and Presets
      Monoprice SWA-400 400-Watt Subwoofer Amplifier with DSP and Presets
    • M
      Marts Digital MXD Series Monoblock Full Range 700W Amplifier
      Marts Digital MXD Series Monoblock Full Range 700W Amplifier
    • P
      Powerbass XMA-800D 800W 1-Ohm Class D Amplifier
      Powerbass XMA-800D 800W 1-Ohm Class D Amplifier