The driver and how to use it are unknown. It's an item I bought with WE555 before, but I don't know if it fits 555. Please judge from the dimensions. Made of metal (Yasuhito Koshihama)
Main specifications: outer diameter 40mm inner diameter screw part approx. 35mm height 25mm upper outer diameter 24mm inner diameter 20mm
※It smells like air freshener, so it's cheap. 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 (Yasuhito Koshihama)
Maintenance Information: 2020.4.4 Maintained (Confirmation Symptom: The power does not turn on. Action: Power supply board repair correction. Fixed due to soldering deterioration in the main amplifier circuit and other circuit boards. Remote wire switch disassembly contact polishing. Bad output relay contact replacement. (I/O pin jack polish)
Accessories: none
Main specifications: 20W+20W (when grade A) 100W+100W (when AB grade) W454 x H165 x D380 mm 17.5 kg
Maintained! The successor to the PM-80. MOS-FET is used to create a unique world view with gloss in the mid-range. The plump, thick sound during Class A operation is unrivaled, and you can relax and immerse yourself in the music. On the exterior, there is a feeling of use such as seal marks, dullness, and small scratches on the top plate. Serial MZ009432260139 (Yasuhito Koshihama)
Maintenance information: 2024.2.17 Maintained (all main amplifier board soldering deterioration fixed. Bad output relay contact replacement. Disassemble and sharpen the input switch and apply contact cleaner. (Long time sound check)
Accessories: none
Main specifications: MOS-FET use, AB class switchable, Class A (20W+20W), Class AB (100W+100W) PHONO input (MC/MM switching), W454 x H165 x D380 mm 17.5 kg
Disposal prices have been reduced. Member prices are not applicable. 2013/7/23 sales price 298,000 yen ※ longitudinal vibration SP special gramophone. serial 6083. The Thomas Edison Sound is now being revived after 100 years. I am impressed by the well-conceived metal horn system, rotation adjustment mechanism, volume adjustment mechanism, etc. in the old fashioned way. There are scratches etc. on the cabinet that make it feel old. It has been repaired to a level where there is no anxiety about playback. Can be used normally (Yasuhito Koshihama)
Maintenance information: 2013.2.17 Maintained (sound box repair, spring repair, rotation adjustment mechanism repair, brake repair) 2013.7.23 operation checked
Accessories: handle, snail
Key Specifications: The needle tip of the sound box is a diamond. Horn opening W345 x H230 mm body dimensions W455 x D515 x H1055 mm