*Due to poor LOW volume, the specification has been changed so that only the low frequencies come out at full throttle. Other volumes can be used as normal. A pretty rare Yamaha channel divider. An electronic crossover network equipped with continuously variable crossover frequency, a 3-stage slope selector, and a Q control circuit. For 2 to 3 ways. The exterior has small scratches and dullness (Oikawa Tetsuji)
Maintenance information: 2024.4.24 Maintained (switches and volume contact repairs, LOW volume has passed circuitwise because parts cannot be obtained)
Accessories: none
Main specifications: crossover frequency Low-Mid: 50 Hz, 100 Hz, 200 Hz, 400 Hz, 800 Hz Mid-High: 800 Hz, 1.6 kHz, 3.2 kHz, 6.4 kHz, 12.8 kHz Low-Mid: 35 Hz to 1.13 kHz continuously adjustable by crossover fine adjustment knob, Mid-High: 565 Hz to 18.1 kHz continuously variable W435 × H72 × D349 mm 7.5 kg
The disposal price has been reduced! (Member prices are not applicable) 2023/4/15 sales price 148,000 yen Overhauled by the manufacturer! The maniacal 300B power amplifier is now in stock in kit type. This is a product that Sun Valley/Kit stores were fully satisfied at the time and took on a new challenge. You can enjoy the sound unique to Sun Valley, which is plump and has a good tone. The exterior is dull, but there are no noticeable scratches. (FUJISAWA KOSHI)
Maintenance information: 2024.4.15 Maintained by the manufacturer (after fixing production issues, measurement and aging (5H) were completely reworked, and the 300B1 was replaced due to poor output (insufficient output). Since this product is a circuit with a transformer arranged at the input part, the input impedance is designed to be lower than a normal vacuum tube amplifier. Therefore, we recommend using the input volume at the maximum position unless there are special circumstances)
Accessories: power cord, manufacturer measurement table
Main specifications: 300B single power amplifier vacuum tube configuration: first stage 6C6 x 2, output stage 300B with adjustable ham balance only wiring method: all manual wiring bonnet: none Rated output: 8W+8W/8Ω, THD 10% frequency characteristics: 25Hz to 40kHz (1W, -3dB) gain: 25dB power consumption: rated 90W output impedance: 4,8,16Ω (select any system during production) ) Size (including vacuum tube and protrusions) W330 x D280 x H210 mm, weight approx. 12.5 kg
A new-generation integrated upgrade that brings out the appeal of unique speakers as much as possible by raising the damping factor to 600 and bringing out the appeal of unique speakers as much as possible. The power amplification stage with 3 parallel push-pull power MOSFETs allows you to hear more powerful sound than before. There are no noticeable scratches on the exterior. Serial B0X159 (Fujisawa Yukishi)
Maintenance information: 2024.4.20 Operation confirmed
Accessories: remote control, instruction manual, power cord, original box
Main specifications: rated output 180W+180W (8Ω) input RCA5 systems, XLR2 system, tape input/output 1 system, pre-out RCA1 system, XLR1 system main in RCA1 system, XLR1 system damping factor 600 size W465 ✕ H181 ✕ D428mm weight 24.6 kg
Air-tight KT88 push-pull The modern sound, which combines the soft texture unique to vacuum tubes and the high resolution, is attractive. There are 2 inputs at the front and rear, and the front input can be directly connected to the first stage tube without going through a shielded wire. The front panel is equipped with a meter that can check the optimal operating point of the output tube. There are many scratches on the bottom plate, and there are paint chips, threads, and bumps on the transformer (Oikawa Tetsuji)
Maintenance information: 2024.4.22 operation confirmed
Main specifications: used vacuum tube KT88 x 4, ECC83 x 2, 5814A x 2, 12BH7A x 2, 12BH7A x 2, 80W+80W 8Ω, W415 x H223 x D380 mm, 32 kg
The first stage is all 4 PASVANE WE310A! This is Sun Valley's Western 91 300B single amp. Anyway, it's an amplifier that clearly expresses even the afterglow, and it has enough power. Although it has an output of 8W+8W, this model is extremely practical and of high quality. It is a power amplifier with a balanced, glossy tone with no excesses or deficiencies from low to high frequencies. There is a scratch on the back of the exterior. Serial 63113 (Yonejima Satoshi)
Maintenance information: 2021.6.13 manufacturer maintained (all metal fittings on the 310A socket have been increased and tightened, looseness of vacuum tube pins and socket fittings fixed) 2020.8.7 manufacturer maintained (as preventive maintenance, hot bond treatment to prevent disconnection is performed on the 310 grid cap solder part, and residual noise, gain, frequency characteristics, and voltage of each part are measured to confirm that there are no abnormalities)
Accessories: power cable
Main specifications: output 8W+8W vacuum tube 300B ✕ 2 (Elehamo) 310A x 4 (PSVANE) 5R4GY ✕ 1 (RCA) W400 x H210 x D300 mm weight 23 kg
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
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
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
Refreshed during interior and exterior maintenance in July 2022! It is an S8R composed of late stage famous units representing JBL. The 075 tweeter is full of realism, with the sound of a driver blowing fire into the thick, dry low frequencies, and a sense of realism that leaves graininess. You can enjoy the real thrill of vintage audio. It is in good condition (Oikawa Tetsuji)
Maintenance information: 2022.7.13 maintained (exterior repair/polishing/oil finish, front and rear baffle/hakama repair/paint, lattice repair/polishing/painting, backing fabric replacement, woofer maintenance (edge replacement, cone paper coating), passive cone paper coating, driver maintenance (magnetic circuit rust removal/gap cleaning/center adjustment, sound absorbing material replacement, terminal cleaning), tweeter maintenance (horn polishing, magnetic circuit rust removal, etc.) Gap cleaning, terminal cleaning), network maintenance LX5 (terminal rust removal, acid washing, insulation bush & mounting screw replacement. ATT (SW type) disassembly contact polishing and cleaning. 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) N7000 (terminal and screw rust removal, acid cleaning, insulation bush replacement. ATT contact cleaning and contact grease application. 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 diffuser repair)
Accessories: none
Main specifications: 3 way 3 speakers 1 passive radiator system low range unit 38cm cone type LE15A, medium range unit horn type 375, high range unit 075, passive radiator 38cm cone type PR15, network LX5/N7000 sound pressure level 95dB allowable input 125W W1020 x H670 x D510 mm 82 kg/book
The disposal price has been reduced! (Member prices are not applicable) 2024/3/27 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. On the exterior, there are scuffs scattered on the top surface, and many other small scratches can be seen. Serial 22063 (Yonejima Satoshi)
Maintenance information: 2024.3.27 Maintained (INPUT DIN connector replaced, DW4P-RCA female cable created. All internal checks. Lch power stage Tr x 3, DC cut C, gain setting C exchange. AC line fuse installation. Operation check)
Accessories: power cord, connection cord
Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 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
※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.
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
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