This is a public addressing amplifier from Pyle, model PT730U. We tested it the PA amplifier to take audio input from all the mic and aux channels, even the aux port in the front. The audio was tested to be output through LINE and REC while also outputting audio through the speaker connectors.
Two of the screw sets from the speaker connectors are missing. The volume control for MIC-4 and AUX-2 are semi-working. MIC-4 produces crackling sounds when turned. AUX-2 seems to be at a much lower volume range than the other inputs. All other volume knobs are in full working condition.
I was unable to fully test the USB and microSD slot readers. When I inserted a USB drive containing music, it seemed to be loading, but the message displayed seemed to be in Chinese characters. No further testing could be done.
The exterior of the amplifier shows some wear from previous use. It comes with rack mount ears and will also include a standard power cable, but no other outside accessories are included.