Amp Box S3 CI
Compact stereo power amplifier in an aluminium housing, built for custom installation. It adds auto power-on, signal sensing, RS232 control and level, bass and treble controls to the Amp Box S3 design, for integrators and small-room hi-fi setups.
- 2 x 20 W at 8 ohms, 34 W at 4 ohms
- RS232 control for custom installation
- Auto power-on and input signal sensing
- Level, bass (±11 dB) and treble (±5 dB) controls
- RCA input, RCA loop output, 12 V trigger in/out
- Aluminium case, 103 x 36 x 112 mm, 380 g
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The Amp Box S3 CI is a small stereo power amplifier that delivers 2 x 20 W into 8 ohms or 34 W into 4 ohms per channel. It builds on the Amp Box S3 with a redesigned circuit board and topology intended to lower distortion and improve signal-to-noise ratio, and it is tuned to resemble the sound of a tube amplifier.
The custom-installation additions are Auto Power, which switches the unit on as soon as the power supply is connected, and signal sensing, which switches between standby and on depending on whether an input signal is present. RS232 control allows automation, smart-home and home-theatre integration. Level, bass (±11 dB) and treble (±5 dB) controls allow the amp to be matched to a given system. Speaker, RS232 and power connections use secure professional-grade sockets so cables cannot be pulled out accidentally.
Inputs are a stereo RCA pair with a stereo RCA loop output, plus a 12 V trigger input and output on 2.5 mm jacks. Speakers connect to a pluggable 4-pin Phoenix block. The full aluminium case shields against vibration and interference, and the unit is powered by an external 20 V / 3 A DC supply. It is made in Europe and comes in black or silver.
Specifikationer
- Mærke
- Pro-Ject
- Model
- Amp Box S3 CI
- Kategori
- Hi-Fi og hjemmelyd › Forstærkere
Inputs
- Input
- 1 pair RCA sockets
- Input impedance
- 10 kohm
- Trigger input
- 12V DC, 2-pole jack socket Ø 2,5mm
Outputs
- Power output
- 2 x 20 W / 34 W at 8 ohms / 4 ohms
- Peak power
- 2 x 50 W at 4 ohms
- Speaker sockets
- Pluggable 4-PIN Phoenix Block
- Loop output
- Stereo (RCA)
- Trigger output
- 12V DC, 2-pole jack socket Ø 2,5mm
Audio
- Frequency response @ 20Hz
- Bass EQ variable ± 11dB
- Frequency response @ 20kHz
- Treble EQ variable ± 5 dB
- Channel separation
- - 68dB at 10kHz
- Signal-to-noise ratio
- 88dBV (95dBV - 'A' weighted)
- THD
- <0,03% at 5W
- Gain
- 37dB (level set to max.)
Connectivity
- Control
- RS232
- Auto features
- Auto Power, signal sensing with standby/on
Power
- Power supply
- 20V/3A DC (universal power supply)
Physical
- Dimensions W x H x D
- 103 x 36 x 112 mm (with sockets)
- Weight
- 380 g without power supply
- Finish
- Black or silver
- Housing
- Full aluminium