Internal and external maintenance has been applied and brushed up. The vivid sense of dynamism and the sharpness of the high frequencies typical of YAMAHA have been revived. It has a low frequency thickness that 1000 monitors don't have. It is a timeless masterpiece with a clear sense of transparency, upper and lower driving force, and the smooth connection, and the heavy exterior with an ebony finish that stands out at a glance even today. It is in good condition due to maintenance. Serial 11478L 11478R (Yamato Yuki)
Maintenance information: 2024.4.1 operation confirmed
2023.9.4 Maintained (exterior repair/polishing/clear finish. Rear baffle repair/painting. Saran net replacement. Unit frame painting. Network maintenance (Since the terminals have already been replaced with external products, adjust the direction and tighten, apply a screw fastener, and replace the mounting screws. ATT contact status check (check that there are no gaps). A frequency characteristic measurement check (~ 42 kHz) was performed, and the original capacitor was continuously used because the results were good. Input/output waveform and balance check, sound output check) Unit detachable)
Accessories: saran net
Main specifications: 3-way sealed playback frequency band 40Hz to 20kH sound pressure level 90dB rated input 50W maximum allowable input 100W impedance 8Ω crossover frequency 500Hz/6kHz dimensions W395 x H710 x D349 mm 39 kg
※The sound output operation has been confirmed, but there is a slight band gap, and since it is cheap, it will be handed over as is. Trio quadruple varicon-type FM/AM tuner. The high range is moderate, but the fresh, thick sound that is difficult to obtain with a synthesizer tuner is attractive. The exterior has spots, small scratches, and rust spots (Mizusaki Ryo)
Maintenance information: 2015.3.4 manufacturer maintenance (The detection circuit offset has been adjusted. Other adjustments have been made to RF, detection, VCO, separation, meter, etc. (There is a contact problem with the switch and volume, but since parts are not available, the contacts have been cleaned)
Main specifications: W430 x H149 x D376 mm 8 kg
It smells like an air freshener, and since ATT has cracks, it is cheap, and is currently discontinued. A bookshelf type speaker that uses a uniquely developed hard dome unit. It is a speaker characterized by a well-balanced, clear, and bright sound. There are small scratches, dents, and net holes (Daiki Goto)
Maintenance information: 2024.3.12 operation confirmed (with ATT gaps)
Accessories: none
Main specifications: 3 way 3 speaker bass reflex system frequency band 30Hz to 30kHz impedance 6Ω sound pressure level 94 dB dimensions W390 x H710 x D350 mm weight 27.5 kg/book