Sonance Sonamp A800 Subwoofer Amplifier Home Audio System 90W 4-Ohms - Black

Sonance A800 90W RMS Subwoofer Amplifier

Sonance Virtuoso A-800 Subwoofer Amplifier Powers up not tested further

Sherbourn TST-4 8 Channel Power Amplifier

Sonance A800 Subwoofer Amplifier in Excellent Condition

Sonance Virtuoso A800 90W RMS Subwoofer Amplifier

Sonance Virtuoso A-800 Subwoofer Amplifier Tested Working Missing Knob