SKU: 61593922136

PRO-JECT STEREO BOX S3 BT INTEGRATED AMPLIFIER WITH BLUETOOTH

Sale price$404.55 Regular price$449.50
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

PRO-JECT STEREO BOX S3 BT INTEGRATED AMPLIFIER WITH BLUETOOTHUltra compact integrated amplifier With high quality AptX HD Bluetooth input! Some setups make the use of big amplifiers impossible, but with the new Stereo Box S3 BT you have a big sound in an ultra compact casing. It features two line level RCA inputs and a AptX HD capable BT input to easily connect all your sources. The Stereo Box S3 BT features enough power to drive your favourite speakers with a fantastic sound quality. The 3. 5mm jack variable

 

Ultra compact integrated amplifier

With high quality AptX HD Bluetooth input!

Some setups make the use of big amplifiers impossible, but with the new Stereo Box S3 BT you have a big sound in an ultra compact casing. It features two line level RCA inputs and a AptX HD capable BT input to easily connect all your sources.

The Stereo Box S3 BT features enough power to drive your favourite speakers with a fantastic sound quality. The 3.5mm jack variable output can be connected to an additional amplifier, active speakers or a subwoofer. With its tiny formfactor it fits into every environment. The full aluminium/metal casing not only looks gorgeous but also protects against vibrations and unwanted interferences. For superior convenience it is also fully remoteable. Simply switch inputs and control the volume with the ease of pushing one button!

The new Stereo Box S3 BT is available in black and silver.

Designed & handmade in Europe

The new Stereo Box S3 BT is carefully designed and handmade in Europe. Our goal is to develop a technically flawless device in a housing that is only as big as necessary to safe raw materials. Due to the timeless design & rigid aluminium casework, the Stereo Box S3 BT is built for eternity. With high-quality materials and components, but also well-thought-out design, we want to be a pioneer in the industry.

 

Features

  • 2 x 40 watts @ 4 ohms output power
  • BT 5.0 with aptX HD capability (24-bit, up to 48kHz)
  • Ultra compact integrated amplifier
  • Analogue volume control with motor driven potentiometer
  • 2 pair RCA line inputs
  • Variable output for subwoofer or second zone amp
  • Gold plated RCA connectors
  • Isolated speaker outputs
  • IR remote control included
  • Rigid aluminium casing protects against interference
  • Available in black or silver
  • Made in Europe
Output power: 2 x 21W/40W at 8/4ohms (1%THD)
Frequency response (20Hz-20kHz): <-1,5dB at 4ohms
SNR: 96dB (100 dB - ‚A‘ weighted) at 4ohm
Channel separation: -67dB @ 10kHz
THD: < 0,12% at 5W / 4 ohms
Gain: 32,5dB
Line level inputs: 2 pair RCA
Input impedance 25k ohms
Variable line output: 3.5mm stereo jack
Speakers output: 4mm banana plugs, spades connectors or naked wire
BT version: 5.0
BT codecs: aptX, aptX HD, A2DP profile
Power supply: 20V/3A DC 100 - 240V, 50/60Hz
Power consumption in standby: <0.5W
Replacement battery remote control 1x CR2032 / 3V or CR2025 / 3V
Dimensions W x H x D with sockets 103 x 37 x 115 (138) mm
Weight 450g without power supply

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 61593922136

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4.4 ★★★★★
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Diane Firehammer
Waukegan, US
★★★★★ 5
LOVE THEM🩷
Love these charges so much and have been using them for years! However, each charger only lasts about 6 months. I think they are worth it though and very good. It comes with two so you only need to buy a new pack once a year. Most chargers nowadays don’t last anyway. These charge fast and are very long. Also love the color options, I have mine in pink🩷
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Reviewed in the United States on April 15, 2026
R
Verified Purchase
Ron N
Waukegan, US
★★★★★ 5
Long Cables and Easy to Spot
Size: 10FT, Color: Blue
So far these have been great chargers. They charge quickly and we have not had any issues with them overheating or causing problems with our iPhones, which is always my main concern with third party chargers. The 10 foot length is a big plus. It gives plenty of flexibility whether you are on the couch, in bed, or working at a desk. The extra length makes a noticeable difference compared to standard cables. I actually bought the blue set for my wife so her chargers would stand out from all the white ones around the house. That has worked perfectly. They are easy to identify and no one else grabs them by mistake. The two pack was ideal for that reason, giving her one for the bedroom and one for another room. If you are looking for a fast charging option with longer cables and want something that is easy to distinguish from the usual white cords, this is a solid choice.
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Reviewed in the United States on February 27, 2026
C
Verified Purchase
Chris Steward
Grantham, US
★★★★★ 5
Great block & cables!
Size: 10FT, Color: White
Chargers work fantastically! Charges iPhone 16 superfast as well as new larger iPads. I’ve also used it to charge my MacBook Pro, which it works well with that as well. Doesn’t seem to get excessively hot and the cables are of high-quality. Have bought a lot of these so far and love them!
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Reviewed in the United States on April 28, 2026
A
Verified Purchase
alyssa
Battle Creek, US
★★★★★ 5
Great value
Size: 10FT, Color: Purple
Great charger. Super fast & super long to reach wherever you need it to
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Reviewed in the United States on May 24, 2026
J
Verified Purchase
Jenjems
Natrona Heights, US
★★★★★ 5
Love this it works so well
Size: 10FT, Color: Purple
The link is good. The color is beautiful, they're very easy to use. The charging speed is amazing. They help keep my battery charged all day long, very versatile. It weighs absolutely nothing. And you wanna talk about durability?My dog chewed it and they're still working.
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Reviewed in the United States on May 10, 2026

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