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 18 - Aug 23

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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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4.3 ★★★★★
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Nena
Carnegie, US
★★★★★ 4
Solid mineral SPF with light coverage effect
Style: SPF 50, Size: 3 Fl Oz (Pack of 1)
I’m used to La Roche-Posay’s chemical sunscreens, so this was my first time trying their mineral version. The texture is actually quite nice for a mineral formula. It spreads evenly and doesn’t feel gritty or chalky. That said, it does take a bit longer to fully absorb compared to chemical SPFs. I’m already very pale, and I still notice a slight white cast. It’s not extreme, but it’s there. To be fair, most mineral sunscreens tend to do this, especially those using zinc oxide and titanium dioxide. Interestingly, on my skin it almost behaves like a very light tinted sunscreen. It slightly blurs and softens the appearance of minor blemishes and redness, which I appreciate on minimal-makeup days. It provides broad-spectrum SPF 50 protection and feels gentle on sensitive skin. I haven’t experienced irritation, pilling, or breakouts. It layers reasonably well over moisturizer but benefits from being applied in thin, well-blended layers, which adds some time to my morning routine so it's a little inconvenient. Overall, it’s a solid mineral option with good protection. Just expect a bit more blending time and a subtle cast.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
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Wiscocojo
Chelsea, US
★★★★★ 5
Great for pregnancy (or regular use)
Style: SPF 50, Size: 4.05 Fl Oz (Pack of 1)
I searched far and wide for a safe mineral-based sunscreen for pregnancy. I settled on this one and I was not disappointed. It saved my skin from a lot of sunburn this summer! As other reviewers mentioned, it is harder to rub into the skin and can leave a whiteish tint, but that’s a small price to pay for a pregnancy-safe option.
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Reviewed in the United States on September 22, 2025
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Roni
Dallas, US
★★★★★ 1
Terrible, look like a ghost
Style: SPF 50, Size: 3 Fl Oz (Pack of 1)
I love La Roche-Posay but unfortunately, I finally came across the first product I truly hate from them. This product is a complete white mask on your face and does not settle in at all. You’ll be walking around looking like a ghost all day and it gave me a mild irritation to my eyes.
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Reviewed in the United States on May 29, 2026
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W.Winters
Carnegie, US
★★★★★ 3
Leaves white cast, works okay under makeup.
Style: SPF 50, Size: 3 Fl Oz (Pack of 1)
First time using this sunscreen. I have very sensitive skin and thought since my skin tolerates their cleansers and moisturizers surely it should tolerate the sunscreen. So far so good. It’s very calming on my skin (maybe because of the zinc), but it leaves a noticeable white cast especially if you have dark skin. I wear mine under makeup and have a separate sunscreen from another brand on days where I don’t want to wear makeup. The white cast actually acts as a blank base and helps my foundation to lay well. A tip I learned from makeup artists years ago. Sunscreens that leave a white cast cancels out your natural color and acts as a corrector, concealer and foundation to lay better and look more like skin. Think of it like painting on a blank canvas. The texture is not lotion like and is actually quite thick. make sure to moisturize well before apply this sunscreen. I’ll write an update if I notice any negative issues, but so far I’m content with it because of the purpose I'm using it for.
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Reviewed in the United States on October 23, 2023
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Idane Vazque Acebo
Louisville, US
★★★★★ 5
Safe for very sensitive skin
Style: SPF 50, Size: 3 Fl Oz (Pack of 1), Style: SPF 50, Size: 3 Fl Oz (Pack of 1)
It is an excellent choice, especially if you have sensitive skin or want to avoid chemical filters. Minerals such as zinc oxide and titanium dioxide act by forming a barrier that reflects UV rays instead of absorbing them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026

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