Maintained! In addition to “High Voltage/High Current,” which is a unique amplifier technology, the HK series premain amplifier was created by adding new sound quality improvements. It's not flashy, but the full, astringent mid-range makes you listen to an attractive, stable sound. On the exterior, you can see a feeling of use such as scratches and dullness. Serial S158-04254 (Tomonori Asaine)
Maintenance information: 2026.4.17 maintained (LED light emitting diodes replaced at 6 locations, RCH drive circuit transistors 2SA933, 2SC1740, 2SD2240, 2SC4233 replacement electrolytic capacitors
220u/50v replacement board contact solder repair long-term sound output test) 2024.3.18 maintained (L channel output transistor 2SC3281 2SA1302 2SC3298A short circuit exchange adjustment semi-fixed VR 10KΩ 1KΩ 4 position contact failure exchange output board with solder crack solder repair each input/output connection sound output confirmation ※ This unit does not have a speaker relay, so there is a small pounding sound when the power is turned off (There are times when it comes out, but since adjustments have already been made, there is no problem)
Accessories: copy of instruction manual
Main specifications: output 120W+120W phono input/MM only with video input terminal W443xH160xD405mm weight 15.5 kg