RAMSA Panasonic WP-9220 2 Channel Power Amplifier This amplifier has some scratches and scuffs, and the fan filter needs to be replaced but is overall in good condition for an older amp. I don't have the components or knowledge needed to properly test this. I tried this out with a microphone and a single speaker which I connected to each channel, and I did hear my voice over the speaker, but it was not loud, even on full volume. I don't know if this is because it is not a powered mic or speaker or if it is something else. If there are any other simple tests that I might be able to do, please let me know. D7-4 fdk 80624258