Maintained! A tube preamp incorporating a full-scale phono equalizer circuit with an emphasis on analog playback. Since the Marantz 7 circuit was used as the phono circuit, the sound is sharp and firm. The exterior has dullness and small scratches (Murakoshi Yoichi)
Maintenance information: 2025.10.10 maintenance completed (main and balance volume replacement, rotary SW and lever SW disassembly, polishing and cleaning protective agent application, solder correction, ground tightening, vacuum tube pin cleaning, screw replacement, seal removal, input/output voice check, interior and exterior cleaning)
Accessories: instruction manual (copy)
Main specifications: tubular preamp phono equalizer part: Marantz 7-type 3-stage K-KNF system 12AX7 (ECC83) x 5 W430 x H90 x D325 mm 7 kg