The A2500 is a tube type power amplifier kit that has been replaced with speaker terminals that are easy to use even for beginners. 6AQ8 for the first stage and 12AU7 for the phase reversal stage both use triodes. Since triodes are used across all stages, the sound is taut and bright, with excellent nude characteristics. The exterior has dullness over time, rust, and small scratches. Serial 560561 (Miura Kimiya)
Maintenance information: 2018.4.28 Maintained (printed circuit board resistor replaced. (Adjustment characteristics check OK) 2014.11.21 maintenance completed (input VR, vacuum tube socket, coupling capacitor, SP terminal, BIAS DC BAL, semi-VR, each deterioration exchange, adjustment, characteristic check OK)
Accessories: instruction manual
Main specifications: 6 RA8 push-pull 6 RA8 x 4/12 AU7 x 2/6AQ8 10W+10W W410 x H145 (with hood) x D190 mm 9.6 kg
Transistors, capacitors, and many other parts have been replaced and refreshed and maintained! It was the highest-grade model at the time and had a vintage sound that overwhelmed the others, and by actively replacing deteriorated parts, the sound, which tends to be cloudy, has become clear, and the original momentum of the sound has been revived. It is particularly compatible with the JBL Lancer series back then. The exterior is dull, but it is in a good category even when viewed from the year it was released (Oikawa Tetsuji)
Maintenance information: 2024.5.15 Maintained (capacitor, transistor, heat dissipation sheet, semi-fixed resistor, fuse replacement. SP terminal created. Various SW/VR internal cleaning. Clean each board contact. Solder again after removing the old solder. Internal and external cleaning, idle DC offset adjustment. (Audio output tested for various inputs and all SP terminals)
Accessories: copy of instruction manual
Main specifications: 80W+80W (8Ω) frequency characteristics 5Hz to 100kHz tone control/bass, midrange, treble 3-stage adjustment W462 x H155 x D316 mm 17.5 kg
Maintained! 15th anniversary model of the 607 series. MOS-FET is used for the power stage, adding a sense of transparency to its characteristic heat, and is compatible with various music genres. It has a configuration that exceeds its class, such as balanced input support, and it is a powerful machine that is still popular today. You can see a feeling of use, such as appearance, dullness, small scratches, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.5.14 maintenance completed (tone and other switches dismantled and polished, coated with grease (loudness, muting, processor, subsonic, input selector, power amplifier direct, source direct switch), output relay replacement, protector part capacitor replacement, solder repair, internal inspection and cleaning, bottom repair, operation confirmation)
Accessories: power cable, copy of manual
Main specifications: 45W+45W (8Ω) PHONO (MM/MC) W460 × H159 × D446mm 18.8 kg
※It is cheap because it is in poor condition due to numerous modifications. Heavyweight horizontal audio rack It's sturdy, so it's fine even if you put a super dreadnought analog player on the top plate. The inside is slightly larger, so even slightly larger full-size equipment can be stored. Since there are many modifications such as the exterior, attaching a copper plate to the upper right shelf, attaching a tile mat to the bottom, and attaching a handle to the tray, etc., the shelf on the right side does not come off, and a feeling of use such as dullness and abrasions can be seen (Kobayashi Hitoshi)
Accessories: none
Main specifications: Overall measurement W1200 x H535 x D572 mm inner dimensions on one side (without shelf board) W530 x H430 x D (top plate 560, medium plate 470, lower stage 560) mm top plate thickness 45 mm shelf board thickness 23 mm weight 69.85 kg
The price has been drastically reduced! 2024/4/27 sales price 79,800 yen Maintained! This is the first AUDIO OF OREGON control amplifier to arrive in a long time. It is compatible with 117V specification American speakers such as ALTEC and JBL, etc., and although it is a transistor, it doesn't become too stiff and makes you enjoy the firm sound. The exterior has dullness and scratches. ※The plug has been changed. Genuine RF Serial 02117 (Tamura Eiji)
Maintenance information: 2024.4.27 Maintained (no running symptoms. The board vibration check connection was checked. (All pattern parts of the flat amplifier module unit have been added and soldered.) 2024.4.13 Maintained (Electrolytic capacitor replacement in amplifier module. Pattern contact defect correction. (Voice operation check)
Accessories: No accessories
Main specifications: All stages use pure class A operation circuit input phono (mm/47 kΩ) tuner, tape, aux dimensions W483 x H89 x D190 mm weight 4.5 kg
The disposal price has been reduced! (Member discounts are not applicable) 2024/1/18 sales price 49,800 yen Maintained! An American-made amplifier from the 1970s that can hardly be seen today. Circuits for self-preservation, such as security, correction, and protection, have been cut off, and I think that handsome atmosphere is well reflected in the sound. It has the same feeling of use as the model year (Daiki Goto)
Maintenance information: 2024.1.18 Maintained (LED installation (original not available) poor power stage transistor deterioration, defective transistor in the board → replacement. Bias adjustment, operation check.)
Accessories: none
Main specifications: size (actual measurement) W406 x H155 x D327 mm weight (actual measurement) 12.2 kg
Maintained by the manufacturer. It has an aspect as an entry model, but it is a model where you can fully enjoy the uniqueness of Accuphase. In addition to the wide range, it is supple and has a slight sex appeal, so you can enjoy it for 12 minutes. A powerful unit that sounds regardless of whether it is a large or medium speaker. In addition to conspicuous marks on the exterior and top plate, a feeling of use such as dullness, stains, and threads can be seen (Kobayashi Hitoshi)
Maintenance information: 2024.5.17 manufacturer maintenance (push switch, volume, etc., cleaning, parts replacement, decorative plate installation, inspection of each part, adjustment, safety check, pressure resistance check)
Accessories: power cable, remote control, manual
Main specifications: 100W+100W (8Ω) parallel push-pull output stage current feedback amplifier circuit W475×H170×D424mm 21.4 kg
The price has been reduced! 2024/5/17 sales price 99,800 yen ※The HDD has been changed to an SSD (2TB). This is a black model that has upgraded the DELA N1A/N1Z, which was announced and sold as the industry's first “audio NAS,” and improved commerciality. Equipped with a dedicated USB-DAC connection terminal, the rear design has been renewed. In addition to being equipped with a 60W high-capacity power supply unit, a newly developed high-capacity capacitor bank is mounted on the rear stage of the power supply unit. A newly selected 3.5-inch quiet drive is mounted on a floating silicon bush to improve sound quality. There are scuff marks and dirt marks on the exterior. Serial 40300161000139 (Fujisawa Yukishi)
Maintenance information: 2024.5.17 Operation confirmed
Accessories: power cord
Main specifications: storage capacity 2TB (2TB SSD x 1) input/output terminal USB 3.0 x 3 (import/capacity expansion/backup) USB 2.0 x 1 (for USB-DAC connection) RJ45 x 2 (router connection/network player) compatible file format WAV · AIFF · FLAC · ALAC · DSF · DFF sample frequency 44.1/88.2/176.4/352.8/48/96/192/384 kHz (PCM) 2.8 /5.6/11.3 MHz (DSD) compatible number of bits 16 to 32 bits (PCM) W436 x H70 x D352 mm weight 7 kg
Exclusive audio rack made of wood fiber plywood and metal posts, with casters. The sturdy construction typical of TAOC is attractive. It is a rack where you can aim for stable sound quality without coloring. The effective height is 180 mm for the upper and middle steps and 230 mm for the lower tier. There are wounds, stains, abrasions, etc. (Oikawa Tetsuji)
Accessories: none
Main specifications: load capacity 1 stage 100 kg W600 x H835 x D550 mm 27 kg
The price has been drastically reduced. 2023/4/28 sales price 1,000 yen. ※1 bottle only. Jack Jack Cable 2.0m Studio and Stage Professional Cable There is no habit, and the tone is straightforward (Takasaki Atsushi)
Maintenance information: 2023.4.28 Conductivity confirmed
Accessories: none
※Shipping service. Special Feature = Contemporary Noise Thoughts Vol.2/Overview of American 3-Pole Output Tubes/Mos-FET Single Stage OTL Amplifier/Medium Monitor Speaker Research/New Feedback Circuit Type DC Preamplifier/38 cmW Woofer System Vol.4/Published Circuit Diagram: PIONEER CT-580/S57.5.1 Issued Photographs are samples, so the actual product may be broken or written.
This is a phono equalizer amplifier using FET. Excluding local feedback, the overall CR type circuit configuration is compatible, and MM/MC switching is handled by first-stage FET gain switching. The sound is neutral and unobtrusive. The appearance is fine, with no noticeable scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.5.14 Operation confirmed
Accessories: power cable
Main Specifications: Input Terminal Unbalance (RCA) 1 System Output Terminal Unbalance (RCA) 1 System mm3mV MC0.25mV W102 x H112 x D209 mm 1.0 kg
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
A standard machine that also supports 192 kHz/24 bit digital input. With the theme of improving speaker driving power, the power transistors on the power amplifier driver stage have been made larger, and you can hear sounds with a higher driving power with a sense of stability. There are no particularly noticeable scratches on the exterior (Oikawa Tetsuji)
Maintenance information: 2024.5.3 operation confirmed
Accessories: remote control, power cable
Main specifications: 40W+40W (8Ω) PHONO (MM) optical digital input 2 systems coaxial digital input 1 system W440 × H105 × D370 mm 7.8 kg
The disposal price has been reduced! (Member discounts are not applicable) 2023/5/9 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 (Yamato Yuki)
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: power cable
Main specifications: T-type circuit adopted 100W+100W W432 ✕ H132 ✕ D355mm 19kg
The price has been drastically reduced. 2023/12/11 sales price 15,000 yen*There is no problem with operation, but since it is cheap, it is being delivered as is. Center speaker for the company's STAGE series. Please help build a theater system (Daiki Goto)
Maintenance information: 2023.12.11 operation confirmed
Accessories: instruction manual
Main specifications: 2-way dual 133mm woofer, 25mm aluminum treble unit impedance 6Ω efficiency 88dB W469 x H190 x D220 mm weight 7.95 kg
ADK 4-tier rack. Of course, other rack units can be stacked and used. Depending on the size of the device, you can change the rack to your liking. There is a feeling of use due to appearance, dullness, abrasions, scratches, etc. (Kobayashi Hitoshi)
Accessories: 4 hole caps
Main specifications: upper stage and middle height 170 mm, lower stage height 250 mm W574 x H730 x D497 mm