Fully functional and sound excellent. Iconic Knight Rider VU meters look awesome! Just cleaned and tuned this Yamaha pre and power amp pair up and they sound excellent. Yamaha pre amp has triple tone controls and mm and mc phono cartridge options. Power amp is putting out 135 wpc 8 ohms. Nice synergy with these Boston acoustic A-150's. The Boston's are in good condition with fresh foam on the woofers. One hole in the grill fabric. Real wood veneer is in good condition.