Maintenance was carried out in 2019. Marantz pre-main amplifier with excellent cost performance. The sturdy, heavy construction is unique to the heyday of audio. Class A operation can be switched, and both design and sound quality are unique to that time. There is a scratch on the lower right side (Kanai Hidetsugu)
Maintenance information: 2019.3.29 Maintained (input selector, REC OUT selector disassembly contact polishing. Output relay replacement. Fix it by injecting cleaning agent into the MM/MC changeover switch. Signal line connector pattern solder correction. (I/O pin jack polish)
Accessories: instruction manual
Main specifications: 20W+20W (when grade A) 100W+100W (when AB grade) W454 x H165 x D380 mm 17.5 kg