※There are no operation confirmation issues, but since it is for business use, it will be handed over as is without warranty. It is an attractive amplifier with a maximum output of 100W during 4-channel operation, and the strength unique to commercial use. There is a feeling of use such as scratches and dullness on the exterior as a whole (Ryo Mizusaki)
Maintenance information: 2024.2.3 sound output confirmed
Accessories: none
Main specifications: 80 W x 4 (8 Ω continuous output) 100 W x 4 (4 Ω continuous output) 200 W (BTL 8 Ω continuous output) W480 x H88 x D417 mm weight 12.5 kg
※There are no operation confirmation issues, but since it is for business use, it will be handed over as is without warranty. Excellent heat dissipation performance due to the servo cooling system. It clearly brings out stable sound quality even when used continuously for a long period of time, and the sound source and pre are simply brought out. Overall, there is a feeling of use such as dirt and friction (Ryo Mizusaki)
Maintenance information: 2024.2.3 sound output confirmed
Accessories: none
Main specifications: 80 W+80 W (8 Ω continuous output) 110 W+110 W (4 Ω continuous output) 220 W (BTL 8 Ω continuous output) frequency characteristics 20 Hz to 20 kHz +0 -0.5 dB (at 4 Ω 1 W output) dimensions 480 x 102 x 394 mm
The disposal price has been reduced! (Member discounts are not applicable) 2023/5/13 sales price 69,800 yen ※This is not a DC amplifier, so please connect the speaker cable before turning on the power when making sound. Maintained! 120V specification Dinaco's transistor stereo power amplifier was developed by utilizing technology obtained with tubular amplifiers in semiconductor circuits. You can enjoy intense, dynamic expression without requiring precise sound expression. You can see the exterior, dullness, corrosion, etc. depending on the age (Kobayashi Hitoshi)
Maintenance information: 2023.5.13 Maintained (power SW dismantling contact cleaning) 2022.8.26 Maintained (bypass C replaced. Replace the power stage with a Tr pair. Internal cleaning, operation check. Waveform clip at AC100V. (120V → OK)
Accessories: none
Accessories: none
Main specifications: 60W+60W W330 x H104 x D260 mm 8 kg
Maintained! An attractive power amplifier with rich bass, clear treble, and deep sound. Equipped with Technics's unique New Class A circuit, it enables efficient Class A operation, and you can enjoy powerful sound with plenty of driving power. There are scratches on the exterior and front panel, and there is also dullness and a feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.4.17 maintenance completed (speaker relay replacement, inspection of each board, partial solder repair, DC balance, idling adjustment, sound output confirmation test)
Accessories: none
Main specifications: effective output 150W+150W (8Ω) output bandwidth 5Hz to 100000 Hz SNR 123dB damping factor 100 (8Ω) output meter indication range -60dB to +5dB power consumption 300W dimensions W430 × H178 × D416 mm weight 18.4 kg
The disposal price has been reduced! (Member prices are not applicable) 2024/3/2 sales price 198,000 yen Maintained! This power amplifier was released around the same time as the SG620. It combines 100W+100W driving power with good sharpness. It reproduces thick sounds unique to JBL from a simple design with only a power switch on a black body. It goes well with 70' SJBL speakers and drives exhilarating. The exterior has front scratches, bends on the power switch, scratches, and repair marks on the top plate. Serial 10623 (Yonejima Satoshi)
Maintenance information: 2024.3.2 Maintained (timer relay installed (speaker will be turned on 5 seconds after power is turned on. (Please turn off the VOL when the power is on). Power SW bending correction (deformation of the knob itself is not compatible). Power stage Tr check (Replacement of Tr in the board, level VOL, fuse holder, and C in the power supply board)
Accessories: No accessories
Main specifications: T-type circuit adopted 100W+100W W432 ✕ H132 ✕ D355mm 19kg
※It has a cigarette smell, so it's cheap. Currently sold. 115V specification A power amplifier that is supported by a heavyweight power transformer and reproduces tight low frequency reproduction with good visibility. It shows high cost performance that exceeds size and price. There are scratches on the exterior. Serial 217380XCK00185 (Tamura Eiji)
Maintenance information: 2024.4.16 Operation confirmed
Accessories: none
Main specifications: 45W+45W (8Ω) 75W+75W (4Ω) W483 × H51 × D295mm 7.5 kg
※It has a cigarette smell, so it's cheap. Currently sold. 115V specification A power amplifier that is supported by a heavyweight power transformer and reproduces tight low frequency reproduction with good visibility. It shows high cost performance that exceeds size and price. There are scratches on the exterior. Serial 2172380XCK00186 (Tamura Eiji)
Maintenance information: 2024.4.16 Operation confirmed
Accessories: none
Main specifications: 45W+45W (8Ω) 75W+75W (4Ω) W483 × H51 × D295mm 7.5 kg
※It has a cigarette smell, so it's cheap. Currently sold. 115V specification A German stereo power amplifier with resolution and expressiveness not typical of commercial use. It is proud of its exhilarating sound and outstanding driving power that comes out quickly. The exterior has scratches and paint bald spots. Serial 2172380UGD01107 (Tamura Eiji)
Maintenance information: 2024.4.16 Operation confirmed
Accessories: none
Main specifications: 85W+85W (8Ω) 150W+150W (4Ω) W483 x H88 x D270 mm 11.5 kg
※It has a cigarette smell, so it's cheap. Currently sold. 115V specification A German stereo power amplifier with resolution and expressiveness not typical of commercial use. It is proud of its exhilarating sound and outstanding driving power that comes out quickly. The exterior has scratches and bends on the panel. Serial 2172380SCG00375 (Tamura Eiji)
Maintenance information: 2024.4.16 Operation confirmed
Accessories: none
Main specifications: 85W+85W (8Ω) 150W+150W (4Ω) W483 x H88 x D270 mm 11.5 kg
The disposal price has been reduced! (Member prices are not applicable) 2024/3/28 sales price 59,800 yen ※The lower front panel has been changed to a PRA-1003 panel. Maintained! A stereo power amplifier using a DC amplifier system. The power supply unit is equipped with 2 independent power transformers on the left and right sides. The powerful and clear sound emanating from the sturdy body is impressive! The well-designed analog meters are beautiful. You can enjoy all genres with very good extrusion and a sound that is not addictive. There are stains and small scratches throughout the exterior. Serial 110456 (Fujisawa Yukishi)
Maintenance information: 2024.3.7 Maintained (LR output meter relay replacement, LR power amplifier solder repair, differential circuit part FET, transistor replacement, pin jack replacement, interior and exterior inspection cleaning*Since the ceiling panel cannot be obtained from this unit, it will remain as it is)
Accessories: No accessories
Main specifications: rated output 100W+100W (4Ω) 85W+85W (8Ω) transmission frequency characteristics DC to 100kHz W410 × H200 × D285 mm 17 kg
The price has been drastically reduced. 2024/3/12 sales price 69,800 yen Maintained! A slightly unusual Crown consumer power amplifier. It is thin and rack-mountable. A lot of straight sounds are alive and well. It is also suitable as a separate introductory machine. The exterior is dark and has small scratches (Oikawa Tetsuji)
Maintenance information: 2024.3.12 Maintained (volume volume noise was confirmed, so custom-made volume left and right were replaced, (click sound will disappear due to replacement of custom-made product) Running test with other sounds)
Accessories: none
Main specifications: 50W+50W (8Ω) W480 x H40 x D320 mm 7.5 kg
※It has a cigarette smell, so it's cheap. Yamaha commercial power amplifier. This is an easy rim-sized Yamaha commercial amplifier. The overall output is flat with elegant sound quality. There are dirt and scratches on the exterior. Serial 11505 (Tamura Eiji)
Maintenance information: 2024.4.17 operation confirmed
Accessories: none
Main specifications: 45W+45W (8Ω) left and right independent variable volume S/N ratio 110dB W480 x H94 x D338 mm
*The front panel is 20.6L, but it is an upgraded product from 20.5. Maintained! Genuine Harman The excellent separation unique to mono and the excellent sense of shading of the sound give off a unique difference, and even large aperture woofers drive well. Also, the slightly sweet, and comfortable sound similar to ML-2L is attractive. It still makes music fans groan. There are scratches and small scratches on the exterior. *The positions of the SN.689 output terminals are reversed in red and black. *To connect to a speaker, connect the red output terminal to the positive side of the speaker and the black output terminal to the negative side of the speaker. Serial 689 690 (Hiroki Aso)
Maintenance information: 2024.4.4 maintained (replacement of deteriorated parts, solder, deteriorated parts, re-soldering treatment (solder removed/newly soldered after cleaning) DC voltage/DC offset voltage/idling current/other inspection and adjustment short plug replacement The positions of the 689 output terminals are reversed, but they cannot be replaced. This is an upgraded product from NO.20.5L (6212/6213))
Accessories: instruction manual copy power cable (general purpose), Remo short pin x 2, balance short pin (in arrangement)
Main specifications: mono power amplifier effective output 100W (8Ω) input/unbalance (RCA) 1 system, balance (XLR) 1 system, 1 SP terminal system W483 ✕ H210 ✕ D560 mm weight 33 kg/unit
The disposal price has been reduced. Member prices are not applicable. 2024/3/7 sales price 128,000 yen Maintained! A crisp, bright, and sharp sound typical of Marantz from the 1970s. Exactly, it's an American sound on the west coast. The design is also a simple design typical of US Marantz. ※The leg is out of stock. The exterior has dullness and small scratches. Serial 4180 (Yonejima Satoshi)
Maintenance information: 2024.3.7 Maintained (single CH power stage transistor replacement. Screwdriver transistor resistor replacement. Drive Tr Capacitor Replacement Contact polishing, aging test)
Accessories: No accessories
Main specifications: 125W+125W (8Ω) W445 × H170 × D265 mm 14.8 kg
The price has been drastically reduced! 2024/4/10 sales price 159,000 yen Maintained by Taiyo International! JEFF ROWLAND's compact power amplifier, MODEL 102, has arrived. Although it is small, the driving power is high enough with a 100W output. In combination with CAPRI, it shows maximum tonal appeal, and it is a powerful machine that is compatible with various pri even when used alone. One part of the exterior has disappeared, and there are small scratches and bumps. Serial SD0156 (Yonejima Satoshi)
Maintenance information: 2024.4.10 Maintained by the manufacturer (replaced due to lack of capacity of the electrolytic capacitor. (Left and right level and other characteristic tests and running tests are carried out)
Accessories: power cable
Main specifications: 100W+100W (8Ω) frequency characteristics 54-65kHz damping factor 1000 twin mono configuration machined aluminum block W348 x H68.5 x D190 mm 3.4 kg