Maintenance has been completed, including replacement of 6 film capacitors and 7 electrolytic capacitors! This is Macintosh's first transistor control amplifier. It has a crisp and comfortable sound, and it makes me hear a unique McKinn sound reminiscent of a vacuum tube. There are scuffs and line marks on the exterior. Serial 33D80 (Murakoshi Yoichi)
Maintenance information: 2026.3.25 Maintained (block capacitors (2 pieces), electrolytic capacitors (7 pieces), some film capacitors (6 pieces), transistors (10 pieces), and zener diodes (1 piece) replaced. Refine the disassembly contacts for each SW/VR class. Exterior cleaning, characteristic confirmation, waveform confirmation, sound output test) 2024.7.1 maintained (coupling capacitor replacement. Selector switch contact cleaning. Mode switch disassembly contact polishing contact grease application. Volume contact cleaning. Rubber foot mounting. Check the operation of each input/output)
Accessories: instruction manual (copy)
Main specifications: PHONO2 system equalizer curve switching (LP, RIAA) W407 x H135 x D275 mm 7.7 kg
Maintained. Late wide panels. Macintosh's first power amplifier with a balanced circuit configuration. Resolution and transparency have been increased while keeping the traditional rich tone of McKinn intact. The blue meter, which can be said to be synonymous, is alive and well, and it's visually pleasing. Externally, there is peeling on the front panel. Serial JGP 2021 (Fujisawa Yukishi)
Maintenance information: 2026.2.6 maintained (panel disassembly meter part acrylic removal cleaning, replacement due to AC cord damage, lamp replacement
, switch disassembly, polishing, and application of protective agents, repair damaged screw holes and screw replacement, foam rubber material replacement, volume and switch checks, and peeling correction around the letters are not possible. Bias and offset check, output audio check)
Accessories: No accessories
Main specifications: 300W+300W (2/4/8Ω), 600W during MONO (2/4/8Ω) W445 x H196 x D420 mm 35 kg
Maintained including replacing 14 capacitors and 2 relays! It is an attractive premain amplifier with delicate expressive power unique to modern Macintosh. Even vintage JBL and recent tall boys can be played in a well-balanced manner. The sound is thick, and the feeling of extrusion in the mid and low frequencies is excellent. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2026.3.24 maintenance completed (each SW/VOL cleaning, panel dismantling, meter illumination lamp replacement, in-board relay, capacitor replacement, pin jack cleaning, operation check)
Accessories: remote control, instruction manual, power cable
Main specifications: 120W+120W (8Ω) frequency characteristics 20Hz to 20kHz SNR 110dB W445 x H179 x D460 mm 18.6 kg
Maintenance has been completed, such as replacing the block capacitor and repairing poor main volume contact. A tubular mono power amplifier that makes you hear a profound, Macintosh sound. The sound has an air feel that is a bit different from the company's MC275. You can enjoy the relaxed and calm sound unique to vintage McKinn. This is a power amplifier I would like to try combining songs from yesteryear when I want to enjoy them with speakers from yesteryear. There are small scratches, dullness, etc. appropriate for the model year. (Oikawa Tetsuji)
Maintenance Information: 2026.2.18 Maintained (◎ No. 5290, 80/40/30/20 μF Defect Replacement ◎ Main Volume Gari and Pair Replacement, 1 x 2, Additional Volume Knob x 2)
2024.8.8 Maintained (◎ Common Rectifier Tube 5U 4GB Light Emission Defect Replacement 1 x 2, Vacuum Tube Socket and RCA Jack Re-Caulking Repair*Other Operation Checked Including Aging with AC 100 to 117 V)
Accessories: none
Main specifications: KT88 push-pull 60W mono vacuum tube KT88 x 2, ECC83 x 2, ECC82 x 1, 12BH7 x 1, 5U4GB x 2 load 4Ω/8Ω/16Ω frequency characteristics 20 to 30,000 Hz W356 x H203 x D254 mm 20.7 kg/unit
The price has been drastically reduced. 2026/2/14 sales price 198,000 yen Lamp, rubber bushing replacement, various volumes, switch dismantling, cleaning, etc. have been maintained. Genuine Electri, short panel type The Macintosh sound of yesteryear has receded, and it is characterized by a smooth mid-high range. It is compatible with power amplifiers from other manufacturers, and you can enjoy the heavy thickness and sharp sound. There is peeling on the front panel (Oikawa Tetsuji)
Maintenance information: 2026.2.14 maintained (each SW, VOL cleaning, input selector SW dismantling correction, RCA pin jack cleaning, switched pin jack poor contact cleaning, lamp replacement, panel peeling correction, overall peeling cannot be corrected, operation check, backup transformer, relay pattern correction, re-soldering)
Accessories: copy of instruction manual
Main specifications: input terminals PHONO (MM), CD1, 2, TUNER, AUX, TAPE-1, 2, 3, VIDEO, output terminal 2 system dimensions W410 x H138 x D330 mm weight 8.2 kg
The disposal price has been reduced! (Member discounts are not applicable) 2026/2/22 sales price 898,000 yen Maintenance has been completed, such as replacing 4 block capacitors and replacing 7 other capacitors! Comes with a hood. The original MC275 is the pinnacle of Macintosh tube amplifiers. A powerful sound with a velvety luster and full of vitality. Please enjoy the rich Macintosh sound. The exterior has hood oxidation, rust, etc. (Satoshi Yonejima)
Maintenance information: 2026.2.22 Maintained (internal fuse replaced. 5W resistor replacement Vacuum tube KT88 strain and deterioration replacement 2 pieces. Replace 4 35/80/15 μF deterioration block capacitors. Replace 6 oil capacitors with 0.22 μF and other deterioration. Replace 3 20 μF electrolytic capacitors and other deterioration. Thermistor deterioration replacement and 2 additional thermistors. Diodes added. 2 SP terminal deterioration replacements. 2 1W resistor deterioration replacements. Simple lettering procedure. Vacuum tube socket and RCA jack caulk repair
. Other operation checked (measured at 66 to 91 W SP: 8 Ω with rated output AC 100 to 117 V)
Accessories: bonnet
Main specifications: 5W+75W (in stereo) 150W (when mono) vacuum tube/12BH7 x 2, 12AX7 x 1, KT88 x 4, 12AU7 x 2, 12AT7 x 2 frequency band 16 Hz to 60 kHz input sensitivity 0.5 V input impedance 250 kΩ dimensions W311 x H203 x D438 mm weight 30.4 kg
The price has been reduced. 2026/2/8 sales price 5,000 yen Macintosh exclusive panlock mount adapter. Compatible with 10-inch and 12-inch pan-lock compatible models. There is a feeling of use on the exterior such as scratches and dullness (Asaine Tomoho)
Accessories: none
The price has been reduced. 2026/2/8 sales price 5,000 yen Macintosh exclusive panlock mount adapter. Compatible with 10-inch and 12-inch pan-lock compatible models. There is a feeling of use on the exterior such as scratches and dullness (Asaine Tomoho)
Accessories: none
Maintained in 2025. Macintosh early solid state power amplifier. Comes with a precious wood case. The rich and powerful sound unique to vintage MacKins is full of appeal that is different from current models. When combined with the company's C28 and C26 preamps, you can enjoy the flavor unique to vintages that are even thicker and darker. Concurrent models. Serial AH8476 (Murakoshi Yoichi)
Maintenance information: 2025.5.10 Maintained (input terminal replacement, input capacitor deterioration defect replacement, operation check, lamp OK. *The color of the input RCA terminal is gold. Internal capacitors, transistors, etc. have been replaced) 2025.1.9 maintained (lamp replacement, speaker switch replacement, pin jack cleaning, speaker terminal replacement, glass panel side rail screw correction installation) 2019.11.20 maintained (meter illumination lamp replacement, power stage Tr check, output board Tr, input board C replacement, speaker SW replacement, each SW · VOL cleaning, operation check) 2025.1.9 maintained (lamp replacement, speaker switch replacement, pin jack cleaning, speaker terminal replacement, glass panel side rail screw correction installation)
Accessories: instruction manual (copy)
Main specifications: output 105 W+105 W (4/6/8 ohms) LR volume control speaker switch with headphone terminal W440 x H225 x D390 mm approx. 35 kg
Maintenance has been completed, such as replacing 8 capacitors and 4 lamps, disassembling and cleaning each switch and volume. Macintosh's 2nd generation solid state preamp. Although it is a transistor, it inherits the atmosphere of a Macintosh vacuum tube sound. The rich and vivid sound unique to McKinn from this era is attractive. Overall there is dullness, small scratches, rust spots, etc. (Oikawa Tetsuji)
Maintenance information: 2026.2.26 operation confirmed (each SW, vol cleaning, lamp deterioration replacement, pin jack cleaning, in-board capacitor deterioration replacement, pin jack earth plating treatment, operation check, block C status OK)
Accessories: copy of instruction manual
Main specifications: input/LINE2 system TAPE2 system PHONO (MM) 2 system output/PRE OUT2 system W445 x H180 x D350 mm (including pan lock) approx. 11 kg
Maintained, including volume replacement. Late wide panels. Macintosh's first power amplifier with a balanced circuit configuration. Resolution and transparency have been increased while keeping the traditional rich tone of McKinn intact. The blue meter, which can be said to be synonymous, is alive and well, and it's visually pleasing. There is peeling on the front panel, small scratches on the side, and dullness on the top plate (Oikawa Tetsuji)
Maintenance information: 2025.12.28 maintained (VOL characteristics poor in both L and RCH, → replacement meter with original vol, illumination lamp burned → replacement capacitor deterioration replacement power, meter SW internal warpage → reinforcement correction)
Accessories: instruction manual
Main specifications: 300W+300W (2/4/8Ω), 600W during MONO (2/4/8Ω) W445 x H196 x D420 mm 35 kg
Maintenance such as disassembly of all switches and contact cleaning etc. was completed in 2025/5! Macintosh's classic preamp. It reproduces clear mid-range and glossy tones. This model should be used by music fans who enjoy all kinds of sources. The full range of functions, such as a 5-band equalizer and a 7-source input selector, is also attractive. There are small scratches and partial peeling on the exterior. Serial JEB8721 (Tomonori Asaine)
Maintenance information: 2025.5.14 maintained (RCA terminal solder fixed push switch, rotary switch, all switches disassembly contact cleaning contact grease coating main volume disassembly contact polishing cleaning conversion board creation replacement electrolytic capacitor replacement panel lamp replacement panel peeling correction each input/output operation check)
Accessories: copy of instruction manual
Main specifications: Equalizer up and down 12dB (center frequency/30Hz/150Hz/500Hz/1.5kHz/10kHz) rated output 20W+20W (8Ω) W445 x H192 x D395 mm 11.8 kg
※Shipping service. Special Feature = All of the Latest Bookshelf Speakers (top) /Thinking about Audio Criticism (Sugano Okihiko) /Audio Life (Gomi Kensuke)/Published Models: PIONEER/SC-3000, SM-3000 LAX/L308 TEAC/TN-400 MICRO/MR-422, MR-622 PIONEER/CS330, CS-550 ELECTRO VOICE/SENTRY3 BOZAK/B-410 CLASSIC DUAL/DUAL701 MACINTOSH/MAC1900 JORDAN WATTS/JODRELL, JUPITER TLS GOLDRING/G820 SUPER E STANTON/60EE PICKERING/UV-15 2400Q LAX/L504, L-507 NIKKO/R-5000 JIMTEC/M-100, V-3 NAPOLEX/SS-3, ES- 100 KLIPSCH/CORNWALL GOODMANS/DIMENSION8 FISHER/ST-500, ST-530, ST-550 AIWA/AP-2050 TECHNICS/AP-2050, SL-120 ROTEL/RP-1000 GARRARD/ZERO100 THORENS/TD125MK2B MICRO/VF-6000, M-8000 TECHNICS/RS- 745U, RS-728U AIWA/AD-5500 INPERIAL/MK-1 Since the photograph is a sample, the actual product may be broken or there may be markings etc.