*Currently sold. Audio Alchemy's compact D/A converter. Compatible with 32, 44.1, and 48 kHz. Since it has a simple design and is easy to use, it is also recommended as a first-time D/A converter. Felt is attached to the bottom (Oikawa Tetsuji)
Maintenance information: 2025.12.16 Operation confirmed
Accessories: power adapter
Main specifications: 32, 44.1, 48 kHz compatible D/A conversion method bitstream SNR of 93 dB or more Digital input light: 1 system, coaxial: 1 system, digital output, coaxial: 1 system, analog output, coaxial: 1 system, W215 x H45 x D136 mm, 850 g
The disposal price has been reduced. Member discounts are not applicable. 2025/11/24 sales price 598,000 yen 2023/1, both exterior and unit have been maintained. The bottom finish is different on the left and right. Mount the 604C green unit to the Altec Consumer No. 1 corner type enclosure! It's a pretty sensible sound that feels like ICONIC! I feel that the balance between the volume and shape of the unit and enclosure, and how to cut the bass reflex is perfect. It's unclear where the enclosure is from, but the finish makes me feel that the hearing test was repeated after actually setting the 604C. In addition to the exterior, peeling of the veneer on one side of the bottom, small scratches, chips, paint deterioration, and lots of cracks on the sides, etc., dullness and a feeling of use can be seen (Kobayashi Hitoshi)
Maintenance information: 2025.11.23 Operation confirmed 2023.1.6 maintenance (exterior cleaning, repair of peeling part on one side of the bottom. Unit high frequency magnetic circuit gap cleaning center adjustment, single-sided woofer edge crack repair.)
Accessories: none
Main specifications: [604C] 15 inch coaxial 2 way 16 ohm frequency band 30-22000 Hz [N1600A] crossover frequency 1600 Hz W910 x H933 x D614 mm
The disposal price has been reduced! (Member prices are not applicable) 2025/12/9 sales price 228,000 yen We are repairing the exterior, but the repair marks are conspicuous, so it's cheap! Comes with a dedicated stand (S143 STAND). Marble top specification. A new-generation JBL equipped with an LE14 woofer and 175 driver improved to a modern version plus a super tweeter. Unlike the JBL sounds of yesteryear, it is a powerful sound with a wide range. The range that extends to the bottom end, which is common to the K2 series, and the high level of transparency are attractive. The exterior has been repaired, but scratches, spike marks, repair marks, etc. remain. The insulator has deteriorated and oxidized. Serial F20950328/F20950295 (Tomoho Asaine)
Maintenance information: 2025.12.9 maintained (exterior cleaning/repair/black part paint peeling, tear repair, cleaning unit cleaning, jumper creation)
Accessories: stand, saran net, spike, spike holder
Main specifications: main body 3 way 6 ohm 100W 92 dB W450 x H664 x D395 mm 41.7 kg stand W450 x H348 x D395 mm 20.8 kg
Unspecified stand. The top plate is small, so I think it's for small satellite speakers. There are small dullness scars (Sasaki Shota)
Accessories: none
Main specifications: top plate W110 x D125 mm bottom diameter 295 mm height 815 mm
Maintained! The Macintosh 7000 series stereo power amplifier was announced to coincide with the advent of the CD era. It seems to be the core model at the time, and it drives a large speaker with unique sweet and sticky sound quality, and the thick and gorgeous sound typical of the company is attractive. The exterior has a feeling of use such as dullness and small scratches. ※Although it is hard to see from the front, there is peeling on the left edge of the front panel (see bottom of the photo). Serial JFA8923 (Tomonori Asaine)
Maintenance information: 2025.11.21 maintained (power SW replacement, power stage Tr check, each SW, VOL, connector cleaning, operation check)
Accessories: copy of instruction manual
Main specifications: 270W+270W power guard circuit equipped with frequency characteristics 20 to 20 kHz damping factor 30 W 410 x H195 x D400 mm 37.2 kg
Maintained by the manufacturer with Sun Audio! This model is equipped with CETRON 300B that even enthusiasts will be satisfied with. All other balls are complete models with no complaints about RCA. Equipped with a Tamura Trance which is currently unavailable. The high gain and straight, carefree sound quality is attractive. The heater has safe DC ignition. I can hardly hear any hum. It is a first-class product where you can directly feel the good sound of the 300B linear thermal triode (Sasaki Shota)
Maintenance information: 2025.5.7 manufacturer maintained (each part inspected, 7 electrolytic capacitors replaced, 2 vacuum tube sockets replaced, 4 1L4P lug terminals replaced, 1 block metallized film capacitor replaced, bottom plate replaced, 2 bridge diodes installed, 1 resistor installed, 1 film capacitor installed, spark killer installed)
Accessories: repair statement, power cable, manual
Main specifications: 300B single 8W+8W vacuum tube used: 300B x 2 (CETRON) 6SL7 x 2 (RCA) 5U4G x 1 (RCA) W360 x H210 x D270 mm 16 kg
The disposal price has been reduced! (Member price not applicable) 2025/12/6 sales price 59,800 yen ※Grill net is out of stock. It is cheap because it is in poor condition. The TD510 has an impressive sleek design. The expansive sound field unique to a baffle-less body, and the sense of pinpoint localization are truly a few words. The low range is also sufficient, making it an attractive car. There is a feeling of use on the exterior due to blows, small scratches, and dullness. ※One bottom screw on one side is missing. Serial ZE700009/ZE700009 (Jun Tamai)
Maintenance information: 2025.12.6 sound output confirmed
Accessories: none
Main specifications: 10cm aperture full range speaker system bass reflex box rated 20W maximum 40W 6Ω W286 x D363 x H373 mm approx. 8.5 kg/book
The price has been drastically reduced. 2025/11/30 sales price 2,000 yen. A cylindrical magnesium insulator with unknown details. It has an unobtrusive sound and is effective under an amplifier or CD player. A rubber sheet is attached to the bottom, and a feeling of use can be seen on the exterior, such as dullness, scratches, marks, etc. (Kobayashi Hitoshi)
Accessories: none
Main specifications: W40 x H14 mm 34.7 g (actual measurement)
Premium cartridge keeper for Cartridge Keeper 4 made of rosewood. Holds 4 shell cartridges. There is a crack at the bottom of the acrylic cover (Oikawa Tetsuji)
Accessories: none
Main specifications: W105 x H97 x H105 mm (actual measurement)
On an unspecified stone board. Other than the bottom, it is mirrored and beveled. How about for amplifiers? The exterior is dirty (Tamura Eiji)
Accessories: none
Main specifications: W500×H20×D450mm
Set of 8 Technica hybrid insulators. Special anti-vibration rubber on the top and bottom “Honeynight” uses machined brass as the base material to effectively suppress unnecessary vibrations. The safety design prevents slipping even on light devices. The exterior is dull and oxidized over time, the color fades on the label, and the anti-vibration rubber deteriorates (Asae Satoshi Law)
Accessories: none
Main specifications: 3-layer hybrid structure (hannenite/brass/honeyite) diameter 20 x 11 mm, mass approx. 25 g (per piece), load capacity 5 kg (per piece)
Set of 8 Technica hybrid insulators. Special anti-vibration rubber on the top and bottom “Honeynight” uses machined brass as the base material to effectively suppress unnecessary vibrations. The safety design prevents slipping even on light devices. The exterior is dull and oxidized over time, the color fades on the label, and the anti-vibration rubber deteriorates (Asae Satoshi Law)
Accessories: none
Main specifications: 3-layer hybrid structure (hannenite/brass/honeyite) diameter 20 x 11 mm, mass approx. 25 g (per piece), load capacity 5 kg (per piece)
Set of 8 Technica hybrid insulators. Special anti-vibration rubber on the top and bottom “Honeynight” uses machined brass as the base material to effectively suppress unnecessary vibrations. The safety design prevents slipping even on light devices. The exterior is dull and oxidized over time, the color fades on the label, and the anti-vibration rubber deteriorates (Asae Satoshi Law)
Accessories: none
Main specifications: 3-layer hybrid structure (hannenite/brass/honeyite) diameter 20 x 11 mm, mass approx. 25 g (per piece), load capacity 5 kg (per piece)
Set of 8 Technica hybrid insulators. Special anti-vibration rubber on the top and bottom “Honeynight” uses machined brass as the base material to effectively suppress unnecessary vibrations. The safety design prevents slipping even on light devices. The exterior is dull and oxidized over time, the color fades on the label, and the anti-vibration rubber deteriorates (Asae Satoshi Law)
Accessories: none
Main specifications: 3-layer hybrid structure (hannenite/brass/honeyite) diameter 20 x 11 mm, mass approx. 25 g (per piece), load capacity 5 kg (per piece)
Set of 8 Technica hybrid insulators. Special anti-vibration rubber on the top and bottom “Honeynight” uses machined brass as the base material to effectively suppress unnecessary vibrations. The safety design prevents slipping even on light devices. The exterior is dull and oxidized over time, the color fades on the label, and the anti-vibration rubber deteriorates (Asae Satoshi Law)
Accessories: none
Main specifications: 3-layer hybrid structure (hannenite/brass/honeyite) diameter 20 x 11 mm, mass approx. 25 g (per piece), load capacity 5 kg (per piece)
Set of 8 Technica hybrid insulators. Special anti-vibration rubber on the top and bottom “Honeynight” uses machined brass as the base material to effectively suppress unnecessary vibrations. The safety design prevents slipping even on light devices. The exterior is dull and oxidized over time, the color fades on the label, and the anti-vibration rubber deteriorates (Asae Satoshi Law)
Accessories: none
Main specifications: 3-layer hybrid structure (hannenite/brass/honeyite) diameter 20 x 11 mm, mass approx. 25 g (per piece), load capacity 5 kg (per piece)
Set of 8 Technica hybrid insulators. Special anti-vibration rubber on the top and bottom “Honeynight” uses machined brass as the base material to effectively suppress unnecessary vibrations. The safety design prevents slipping even on light devices. The exterior is dull and oxidized over time, the color fades on the label, and the anti-vibration rubber deteriorates (Asae Satoshi Law)
Accessories: none
Main specifications: 3-layer hybrid structure (hannenite/brass/honeyite) diameter 20 x 11 mm, mass approx. 25 g (per piece), load capacity 5 kg (per piece)
Set of 8 Technica hybrid insulators. Special anti-vibration rubber on the top and bottom “Honeynight” uses machined brass as the base material to effectively suppress unnecessary vibrations. The safety design prevents slipping even on light devices. The exterior is dull and oxidized over time, the color fades on the label, and the anti-vibration rubber deteriorates (Asae Satoshi Law)
Accessories: none
Main specifications: 3-layer hybrid structure (hannenite/brass/honeyite) diameter 20 x 11 mm, mass approx. 25 g (per piece), load capacity 5 kg (per piece)
Set of 8 Technica hybrid insulators. Special anti-vibration rubber on the top and bottom “Honeynight” uses machined brass as the base material to effectively suppress unnecessary vibrations. The safety design prevents slipping even on light devices. The exterior is dull and oxidized over time, the color fades on the label, and the anti-vibration rubber deteriorates (Asae Satoshi Law)
Accessories: none
Main specifications: 3-layer hybrid structure (hannenite/brass/honeyite) diameter 20 x 11 mm, mass approx. 25 g (per piece), load capacity 5 kg (per piece)
Set of 8 Technica hybrid insulators. Special anti-vibration rubber on the top and bottom “Honeynight” uses machined brass as the base material to effectively suppress unnecessary vibrations. The safety design prevents slipping even on light devices. The exterior is dull and oxidized over time, the color fades on the label, and the anti-vibration rubber deteriorates (Asae Satoshi Law)
Accessories: none
Main specifications: 3-layer hybrid structure (hannenite/brass/honeyite) diameter 20 x 11 mm, mass approx. 25 g (per piece), load capacity 5 kg (per piece)
Set of 8 Technica hybrid insulators. Special anti-vibration rubber on the top and bottom “Honeynight” uses machined brass as the base material to effectively suppress unnecessary vibrations. The safety design prevents slipping even on light devices. The exterior is dull and oxidized over time, the color fades on the label, and the anti-vibration rubber deteriorates (Asae Satoshi Law)
Accessories: none
Main specifications: 3-layer hybrid structure (hannenite/brass/honeyite) diameter 20 x 11 mm, mass approx. 25 g (per piece), load capacity 5 kg (per piece)
The price has been reduced. 2025/11/16 sales price 39,800 yen with 4 shelves ADK's large audio rack. Height can be adjusted with 3 levels at the top and 5 levels at the bottom (30mm pitch). There are dents on the lower front corner, linear stains on each shelf board, and other small scratches. Shipping costs will be estimated separately. In addition to the exterior and attachment of towing equipment with unknown details on the side, you can see a feeling of use such as dullness, abrasions, etc. (Kobayashi Hitoshi)
Accessories: 4 shelves
Main specifications: load capacity 100 kg W1209 x H726 x D520 mm 62 kg
If you are looking for a tweeter stand of unknown details in this size, please take this opportunity. You can see a feeling of use on the exterior, velcro on the top, adhesive marks on the bottom, dullness, scratches, etc. (Kobayashi Hitoshi)
Accessories: none
Main specifications: W90 x H30 x D90 mm 103 g (actual measurement)
The disposal price has been reduced. Member discounts are not applicable. 2025/5/24 sales price 4,000 yen. ※Inexpensive because it is in poor condition. Currently sold. For those looking for AV speakers! The compact size, which can be used in both front and surround, is attractive, and opens up a natural sound space unique to Yamaha. In addition to the exterior, there are many screw holes, and a feeling of use can be seen, such as peeling, dullness, scratches, stains, etc. on the bottom plate (Kobayashi Hitoshi)
Maintenance information: 2025.5.11 Operation confirmed
Accessories: saran net
Main specifications: 2 way 3 speakers 6Ω 86dB W107 × H360 × D133.7 mm 2.4 kg
Disposal price has been reduced (member price not applicable) 2024/9/16 sales price 10,000 yen A large self-made audio board with a sturdy wooden board sandwiched between a floor mat and felt. It was created by the previous owner for TANNOY Westminster. As for the exterior, there is a feeling of use such as scratches on the bottom (Tamai Jun)
Accessories: none
Main specifications: size W1040 x D700 x H23 mm, weight 8.0 kg/sheet
The remaining amount is about 70% for head cleaning and 90% for pinch rollers. A special cleaning set for cassette decks and recorders. It is an essential maintenance item for the maintenance of important equipment. *Time has passed since the release and quality cannot be guaranteed (Takahashi Nobuyuki)
Accessories: cotton swab instruction manual
*Currently sold. The center speaker of the Silver Series is the core of monitor audio. The sound doesn't make you feel thin even though the range is wide, making you feel that the cost performance is high. There is dullness, dirt, and dents throughout, and tape marks on the bottom (Oikawa Tetsuji)
Main specifications: 2 way 3 units anti-magnetic type 6 ohm 91 db W500 x H185 x D 240 mm 8.5 kg
The disposal price has been reduced. Member discounts are not applicable. 2024/4/11 sales price 5,000 yen. Wood cabinet with unknown compatible models. The internal dimensions of the cabinet are W432 x H123 mm, there are 4 rubber feet on the bottom, and there is a hole (203 x 93 mm) with a metal grill in the center. There is a feeling of use and dullness (Kanai Hidetsugu)
Accessories: none
Main specifications: external dimensions W450 x H162 (including legs) x D267 mm 1.8 kg
※Felt is attached to the bottom, and the spikes are missing. A stand designed for the company's 705 and CM1 bookshelf speakers. It also fits similar sized third-party speakers. Overall, there are dullness, small wounds, etc. (Oikawa Tetsuji)
Accessories: 8 fixing screws
Main specifications: top plate size 160 x 220 mm W278 x H595 x D368 mm weight 10 kg/bottle
The disposal price has been reduced. Member prices are not applicable. 2025/7/12 sales price 128,000 yen Maintained! Quad power amplifier Despite its compact body, you can enjoy a smooth, thick sound. It really goes well with speakers made in England, and makes you listen to 70s analog sound with a sense of dynamism. There is dullness and small scratches (Sasaki Shota)
Maintenance information: 2025.7.12 Maintained (drive transistor (BD244 x 4), power transistor (MJ15024G x 1), and original differential op amp (TL071 x 2) parts were replaced. The connection cord and power cord have been attached.
Input/output waveform confirmation, left and right sound pressure level checks, load tests, and comprehensive operation tests were performed to confirm normal operation) 2025.6.9 maintained (there is a pattern short in the board, poor output board mounting, capacitor deterioration, block C lead wire soldering, driver transistor deterioration, operation check)
2024.8.6 Maintained (all internal parts checked, LCH power stage TR x 1 half short NG replacement, DC cut C replacement within the board, replacement of bottom cover rubber foot defects, operation check)
Accessories: copy of manual, power cable, connection cable
Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg