1. 5.1 ch amplifier
2. Real 5.1 channel input/output
3. Highly magnetically -shielded
4. 6 channel separated remote control
5. Tower speaker can be made of plastic or .........aluminum
6. Tower speaker:
....Drive unit: 2 inch X 2
....Frequency:250Hz-20KHz
....Sensitivity:87dB
....Impedance: 8 Ohm
....Power: 20W X 5
7. Subwoofer:
....Drive unit: 8 inch
....Frequency:38Hz-250Hz
....Sensitivity:87dB
....Impedance: 8 Ohm
....Power: 50W (RMS)
....THD: