Pro-Ject Amp Box S3 CI Color:Black as they have a plastic

as they have a plastic cap that overlaps the depth covered by the black felt strips

100W x 2 | 80W x 3 (8 Ohms)

Power Output

Analog Output: Line out: 1 x RCA

"After spending several weeks with the Pro-Ject X1

Pro-Ject Amp Box S3 CI Color:Black as they have a plasticAmp Box S3 CI Audiophile micro stereo power amplifier for custom installation Custom Integration amp with Amp Box S3 technology inside! The new Amp Box S3 CI enhances our Amp Box S3 design with new custom integration features. Auto Power: powers on the unit automatically as soon as power supply is connected Signal Sensing: monitors the input and turns the unit on off depending on whether there is an input signal or not RS232: control protocol widely