Pro-Ject Stereo Box S3 BT Integrated Amplifier with Bluetooth

Ultra Compact Integrated Amplifier with High Quality aptX HD Bluetooth

Sometimes you simply don't have room for a big amplifier in your home. But what if you crave big sound? With the Stereo Box S3 BT integrated amplifier from the wizards at Pro-Ject Audio, you can have a big sound in an ultra-compact, desktop component.

The Stereo Box S3 BT features enough power to drive your favorite speakers with a fantastic sound quality. The 3.5mm jack variable output can be connected to an additional amplifier, active speakers, or a subwoofer. That's a fantastic feature! With its tiny form factor, the Stereo Box S3 BT fits into every environment.

Despite its small size, the Stereo Box S3 BT gives you two line level RCA inputs and an aptX HD capable Bluetooth input to easily connect all your sources.

"Experience the Power of Quality"

"Say goodbye to the limitations of big amplifiers and embrace high-quality sound in a compact size," observes theaudiotailor.com, June 8, 2021.

"User-friendly, this device allows easy alternating between inputs and volume control with a simple button press. Made in Europe and available in stylish black or silver finishes, the Stereo Box S3 BT enhances your sound experience and complements your lifestyle. Upgrade your audio setup today and experience the power of quality."

Bluetooth aptX HD Connectivity

Bluetooth connectivity means you can wirelessly stream music to the Stereo Box S3 BT from your phone, tablet, laptop, or desktop computer in better than CD-quality sound at up to up to 24-bit, 48 kHz. The aptX HD connectivity also reduces the signal-to-noise ratio, which results in less distortion.

Please note that to get all the benefits of aptX HD, your wireless source device must also support aptX HD.

Full Aluminum/Metal Casework

The full aluminum/metal casework not only looks gorgeous, but it also protects against vibrations and unwanted interferences. For superior convenience it is also fully controllable from your favorite armchair using the including IR remote. Switch inputs and control the volume with the ease of pushing one button!

Designed and Handmade in Europe

The Stereo Box S3 BT is carefully designed and handmade in Europe. Pro-Ject's goal is to develop a technically flawless device in a housing that is only as big as necessary in order to take a green approach and save raw materials. Due to the timeless design and rigid aluminum casework, the Stereo Box S3 BT is built for eternity.

With high-quality materials and components, but also well-thought-out design, Pro-Ject is a pioneer in the industry.

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

Product Features

Ultra compact integrated amplifier
2 x 40 watts @ 4 ohms output power
Bluetooth 5.0 receiver with aptX HD capability (up to 24-bit, 48 kHz)
Analog 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 aluminum casing protects against interference
Available in black or silver
Made in Europe

Product Specs

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: 32.5 dB
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
Battery remote control: 1x CR2032 / 3V or CR2025 / 3V
Dimensions: 4.0" wide, 1.5" high, and 4.5" deep (5.4" including jacks)
Weight: 15.9 oz. without power supply

Product Manual

Pro-Ject Stereo Box S3 BT User Manual (PDF Format)

"Say goodbye to the limitations of big amplifiers and embrace high-quality sound in a compact size."

"User-friendly, this device allows easy alternating between inputs and volume control with a simple button press. Made in Europe and available in stylish black or silver finishes, the Stereo Box S3 BT enhances your sound experience and complements your lifestyle. Upgrade your audio setup today and experience the power of quality."

- theaudiotailor.com, June 8, 2021

Audio Advisor occasionally has fantastic deals on clearance items that are in excellent condition and we happen to have just one or two of.

Demo: Photo samples, gear we auditioned, items returned for wrong color/wrong size, etc.

Open Box: Contents briefly examined or inspected for promotional or internal purposes

Factory Refreshed: Original-condition items repackaged by the manufacturer

Cosmetically Blemished: A few dings or scratches, but functionally in original condition

Used: May show some signs of use

All clearance products are carefully inspected by our technicians before we offer the item for sale. All clearance products except Used items come with the original manufacturer warranty and are guaranteed to work and sound like new.

RETURN POLICY & PROCESS

NOTE:
You may only return a product purchased within 60-days of the receipt date.
The product must be in like-new condition and shipped in the original packaging (So SAVE THOSE BOXES!!!)

Call 1-800-942-0220 to request an RMA number.
Print the RMA number on the return shipping label.
Please make sure the return shipping name and address are written in a note on the inside.
Ship package to…

Audio Advisor Returns
4717 Broadmoor Ave SE, Suite G
Grand Rapids, MI 49512
(PRINT YOUR RMA NUMBER HERE)

NOTE: If a coupon was used in the ordering process, then the final value (recorded during payment) will be the price refunded.

Returned products are inspected by our warehouse and refunds are issued within 24 hours of inspection. Please note: it may take 7-10 business days for your bank to show the refunded amount. If you do not see it then, please reach out to our customer service team at 1-800-942-0220.

Audio Advisor will ship products anywhere in the United States, including Alaska, Hawaii, and U.S. Territories.