Mc Voice AMP-510si HiFi 5.1 amplifier with karaoke function Large display, which displays two large digital level instruments, and all functions. In writing, and with symbols! Colour: silver 5-channel amplifier with DSP processor and 8 impressive surround sound effects. 2 x 140 watts + 3 x 40 watts, 5.1 channel digital speech control amplifier AMP-510HC/B. ESL 5.1 surround. Super I-DCD 24.Bit. DSP mode super theater. Loudness. Music performance: 2 x 140 watts + 2 x 40 watts. Operation modes: Stereo/3 channels/5 channels Karaoke function with echo and sound control. Additionally shielded power supply for undisturbed hi-fi sound. Two large digital performance indication gauges. Controls and connections on the front: 1 Volume control 2. 2x microphone connections 3. Bass control 4. Treble control 5. Balance control 6. Input selector 7. Echo/delay control 8. VFD switch 9. Mode selector 2 channels/3 channels/5 channels 10. Individual volume control 11. DSP switch 12. Power switch 13. Language 14. Auto 15. Mute 16. Microphone volume 17. Large display (250 mm x 70 mm) Connections in the back: AC-3/DTS input (CE/SW, SL/SR, FL/FR) L/R Audio Input (DVD ,CD ,AUX) L/R SW Out (SW Out1 ,SW Out2) L/R Surround speaker connections SR, SL, CEN, +/- Main speaker connections FR, FL +/- w x h x d: 430 mm x 190 mm x 380 mm. Weight: 6 kg The display has a tiny little scratch.