Pro-Ject Stereo Box S3 BT Integrated Amplifier with Bluetooth

Can Compete with Integrated Amps Four Times its Size

Audiophiles who are short on space or who just plain love compact components are in for a treat with the Pro-Ject Stereo Box DS S3 BT. This overachieving desktop integrated amp combines a very small, just over 4"-wide footprint with big power delivery plus wired and wireless connectivity.

How on earth do they do it? Pro-Ject's engineers must be wizards. They have somehow managed to squeeze even more power output into the compact S Series chassis. More power means less distortion, more headroom, and higher volume for streamed music and more.

Built-in Bluetooth Streaming

The Bluetooth input allows you to choose your music from the comfort of your favorite listening chair. It can store up to eight Bluetooth devices, giving you plenty of flexibility with your sources. And speaking of flexibility – not to mention capability – the tiny Stereo Box S3 BT also features two analog RCA inputs that can be selected via the front panel. Or use the convenient wireless remote control that's included.

Connect up to two devices to the rear RCA jacks or send your favorite tunes from your computer, phone, or tablet via the Bluetooth input, which supports Bluetooth 5.0 with aptX HD capability (24-bit, up to 48 kHz).

A Tiny Integrated Amp with Huge Sound

Despite its tiny footprint, this integrated amp can compete with amps four times the size. Plug in and power your favorite pair of bookshelf speakers and use the remote to adjust volume and input from your listening chair. It’s that simple. Nothing complicated to set up.

Need more bass? The 3.5mm variable output jack at the rear can be used with a powered subwoofer for more low-end excitement, or use the jack to hook up an external power amp such as the Pro-Ject Amp Box S3.

Designed and Handmade in Europe

As with other Pro-Ject Box Series components, the Stereo Box S3 BT is designed and handmade in Europe. Choose either a black or silver aluminum chassis. Both finishes look as great as they sound.

Product Features

2 x 40 watts @ 4 ohms output power
Bluetooth 5.0 with aptX HD capability (24bit, up to 48kHz)
Ultra-compact integrated amplifier
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 (4mm bananas, spades or bare wire)
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 @ 4 ohms
SNR: 96dB @ 4 ohms (100dB 'A‘ weighted)
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 outputs: 4mm bananas, spades or bare 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): 1x CR2032 / 3V or CR2025 / 3V
Dimensions (WxHxD): 4.06" x 1.5" x 4.5" (5.4" with jacks)
Weight: 1 lb. (without power supply)

Product Manual

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

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
5500 Executive Parkway SE
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.