Stereo Box S3 BT
Ultra-compact stereo integrated amplifier with two RCA line inputs, an aptX HD Bluetooth 5.0 input and a variable 3.5 mm line output. Aimed at small desktop or bookshelf setups that need a compact amp driving passive speakers.
- 2 x 40 W at 4 ohms, 2 x 21 W at 8 ohms (1% THD)
- Bluetooth 5.0 with aptX and aptX HD
- Two RCA line inputs, gold-plated
- Variable 3.5 mm line output for subwoofer or second amp
- Motor-driven analogue volume, IR remote included
- 103 x 37 x 115 mm, 450 g, black or silver
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The Stereo Box S3 BT is a small integrated amplifier in a full aluminium case, designed and handmade in Europe. It delivers 2 x 21 W into 8 ohms or 2 x 40 W into 4 ohms (1% THD) and uses an analogue volume control with a motor-driven potentiometer, so volume and input selection can be operated from the supplied IR remote.
Inputs are two pairs of gold-plated RCA line inputs plus a Bluetooth 5.0 receiver supporting aptX, aptX HD and the A2DP profile. A 3.5 mm stereo jack provides a variable line output for feeding a subwoofer, active speakers or a second-zone amplifier. Speaker terminals are isolated and accept 4 mm banana plugs, spades or bare wire.
The case measures 103 x 37 x 115 mm and weighs 450 g without the power supply. The rigid metal housing is intended to reduce vibration and interference. It is available in black or silver and runs from an external 20 V / 3 A DC supply.
Video
Tekniset tiedot
- Merkki
- Pro-Ject
- Malli
- Stereo Box S3 BT
- Luokka
- Hi-Fi ja kodin audio › Vahvistimet
Inputs
- Line level inputs
- 2 pair RCA
- Input impedance
- 25k ohms
- Bluetooth input
- BT 5.0 with aptX HD capability (24-bit, up to 48kHz)
Outputs
- Output power
- 2 x 21W/40W at 8/4ohms (1%THD)
- Variable line output
- 3.5mm stereo jack
- Speakers output
- 4mm banana plugs, spades connectors or naked wire
Audio
- 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
- Volume control
- Analogue, motor driven potentiometer
Connectivity
- BT version
- 5.0
- BT codecs
- aptX, aptX HD, A2DP profile
Power
- Power supply
- 20V/3A DC 100 - 240V, 50/60Hz
- Power consumption in standby
- <0.5W
- Remote control battery
- 2x AAA 1,5V
Physical
- Dimensions W x H x D with sockets
- 103 x 37 x 115 (138) mm
- Weight
- 450g without power supply
- Casing
- Aluminium/metal
- Colours
- Black, silver
In the box
- Remote control
- IR remote control included