Genuine Elektri Phono ico (MM) built-in model. A hybrid premain amplifier using a vacuum tube for voltage amplification. The elegant form that is typical of Italian made, and the softness and warm tone create a comfortable space to listen to. The appearance has dullness and rust floats. Serial 300207 (Satoshi Yonejima)
Maintenance information: 2022.3.10 operation confirmed
Accessories: remote control, instruction manual, power cord
Main specifications: Vacuum tube used ECC82 × 1 Frequency characteristics 2 ~ 100 kHz W435 × H95 × D340 mm 12.0 kg
The price has been drastically reduced! 2022/5/27 selling price 398,000 yen A tubular premain amplifier from a long-established Italian manufacturer UNISON RESEARCH. The sound is thick, and the glossy tone makes you listen to vocals etc. comfortably. While it has the fineness of the high range, it also has the power to play rhythm, so you can fully enjoy the charm unique to an excellent vacuum tube amplifier. * It does not have a built-in phono equalizer. The appearance is dull. Serial 390736 (Satoshi Yonejima)
Maintenance Information: 2022.5.27 Operation confirmed
Accessories: remote control, instruction manual, power cord, original box
Main specifications: Pure A class tube spherical premain amplifier input terminal/CD, AV, Tuner, AUX output 27W+27W impedance 4Ω/8Ω (bi-wiring compatible) 1 subwoofer output terminal ( (For Active) Frequency Characteristics 20-30kHz Specifications Vacuum Tube 6550 × 4 12AU7A × 2 12AX7A × 2 W440 × D415 × H205mm (Including Protrusion) Weight 25.0kg
The price has been reduced. 2024/5/12 sales price 128,000 yen Maintained! Line-only pre-main amplifier. The output stage is a single-ended, ultra-linear connection that makes the most simple use of the EL34. It has a gentle sound unique to vacuum tubes, and it can be said that it is an attractive product as an interior decoration. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.5.12 maintenance completed (main volume replacement, monitor switch replacement, cathode resistor replacement, solder correction, vacuum tube pin cleaning, bias check, each input and output check)
Accessories: instruction manual, cloth cover
Main specifications: output 12W+12W A grade single W275 x H165 x D375 mm 14.0 kg
I cut the price. 2021/10/21 Sales price 108,000 yen maintained! A premain amplifier dedicated to the line. The output stage is a single-end, ultra linear connection that makes the most simple use of the EL34. The gentle tone unique to vacuum tubes and the attractive look of the interior are also attractive. The appearance has Kusumi and Slight Scratch. Serial 03609506 (Satoshi Yonejima)
Maintenance information: 2021.10.21 Maintained (replace each output tube and condenser. Cathode resistor, fuse replacement. Replace monitor input switch bias check. (Check output 12W)
Accessories: No accessories
Main specifications: output 12W+12W A class single W275 × H165 × D375mm 14.0kg
Phonoico (MM) built-in model. A hybrid premain amplifier that uses vacuum tubes for voltage amplification. The elegant form that seems to be made in Italy and the softness and warm tone create a comfortable space. The appearance is dull. Serial 300741 (Satoshi Yoneshima)
Maintenance information: 2021.11.27 Operation confirmed
Accessories: remote control, instruction manual, original box, power cable
Main specifications: Used vacuum tube ECC82 × 1 frequency characteristics 2 ~ 100 kHz W435 × H95 × D340mm 12.0 kg
Disposal price has been reduced. Member discounts are out of application. 2021/7/13 Sales price 198,000 yen*Unison pure class A vacuum tube amplifier that uses a single line amplifier KT88. Sound sources such as chamber music and acoustic guitars are recommended for smooth sound. Because it is a line-only amplifier, the PHONO input terminal is line input. *Only the volume up and down buttons can be operated by the remote control of this unit (Yosuke Kojima)
Maintenance information: 2021.7.13 Maintained (replacement of first tube 12AU7, remote control battery terminal repair, functional test)
Accessories: remote control, instruction manual, power cable, original box
Main specifications: Dual mono configuration single-ended ultra linear pure A-class tubular primain amplifier 14W+14W 6Ω Vacuum tube: KT88 × 2/ECC82 ( 12AU7A) ×2 W374 × H170 × D350mm Weight 17.0kg
We have drastically reduced the price! 2021/10/4 Selling price 348,000 yen A tube premain amplifier from the long-established Italian manufacturer UNISON RESEARCH. The sound is thick, and the glossy tone makes you listen to vocals etc especially well. There is also the power to play rhythm while having the fineness of the high range, and you can enjoy a bold and delicate sound. * Does not have a built-in phono equalizer. The appearance is dull. Serial 390736 (Kimiya Miura)
Maintenance information: 2021.10.4 operation confirmed
Accessories: Remote control, instruction manual, power cable, original box
Main specifications: Pure A tube type premain amplifier input terminal/CD, AV, Tuner, AUX output 27W+27W impedance 4Ω/8Ω (bi-wiring compatible) 1 subwoofer output terminal ( (Active) Frequency Characteristic 20-30kHz Specification Vacuum Tube 6550 × 4 12AU7A × 2 12AX7A × 2 W440 × D415 × H205mm (including protrusions) Weight 25.0 kg
Significantly reduced price! 2021/3/6 Selling price 198,000 yen Maintenance! Primain amplifier that makes you feel the goodness of the design unique made in Italy with an elegant and addictive sound. With the warm sound quality unique to the vacuum tube and the refreshing sound quality that creates the atmosphere of Europe, it is one thing I would like to hear with Sonas by all means. Appearance, there is a thread. Serial 416081 (Eiji Tamura)
Maintenance Information: 2021.3.6 Maintenance (Monitor SW · Main VR Replacement (No Alternate Motor Type), Cathode Bypass Capacitor Replacement. Power supply unit resistor relocated. Bias check, output audio check)
Accessories: Power cable, instruction manual
Main Specifications: Pure A Class Tube Spherical Primain Amplifier 30W+30W (4Ω, 8Ω) W330 × H200 × D450mm 25kg
The disposal price has been reduced! (Member discounts are not applicable) 2021/12/17 selling price 198,000 yen Maintained! Model with PHONO input (MM) This is the premain amplifier of the initial unison research. It is a bulb type premain amplifier that has acquired a high power low distortion rate with an independent constant-voltage power supply of all stages. It is a powerful sound that is strong and crisp. You can enjoy it by switching between 5 poles and 3 poles. The appearance is crusty, and there is rust on the hood. The rubber on the hood is easy to come off. Serial 252342 (Satoshi Yonejima)
Maintenance Information: 2021.12.17 Maintained (primary side fuse replacement. Replace other function switches and volumes. Replace resistors and thermistors. Reseated the condenser Changed the output impedance to 8Ω. Input/output voice check. Interior and exterior cleaning (Switch between 5 poles and 3 poles in the power-off state.)
(*When the power is turned on, the high-voltage circuit starts softly and starts normal operation in about 30 seconds.)
Accessories: No accessories
Main specifications: EL34 push-pull output 30W+30W (8Ω/4Ω pentode) 18W+18W (8Ω/4Ω triode) W500 × H160 × D320mm 17kg
The price has been reduced. 2022/12/17 sales price 158,000 yen manufacturer maintenance completed! Limited edition model of Simply TWO, a popular model. It is a line-only pre-main amplifier that plays a beautiful tone with a unique shape that also looks great as an interior decoration. Although it is small, it has plenty of power and is easy to use. There are some abrasions. Serial 32143 (Murakoshi Yoichi)
Maintenance information: 2022.12.16 manufacturer inspection, maintenance (volume replacement, solder contact correction in various places.)
Accessories: remote control, power cord
Main specifications: vacuum tube/EL34 (6CA7) x 2, ECC82 (12AU7) x 2, rated output 10W x 2 (4ω/8Ω) line input 4 systems, TAPE1 system W275 x H165 x D375 mm 14 kg
The price has been drastically reduced! 2021/11/25 Sales price 118,000 yen Maintained! It is the successor of the famous machine SimplyTwo. Class A tube type integrated amplifier from Unison Research. The sweet and glossy tone unique to vacuum tubes matches well with vocals. It is a product with a high interior design and good size (Fujisawa Yukishi)
Maintenance information: 2021.11.25 Maintained (Replace both ECC82 × 2, just in case, total inspection of soldering of the board, correction of missing through holes
(EL34 bias check, inter-terminal voltage measurement, normal value, maximum output check, noise characteristic confirmation, wood plate oil wax treatment, input/output terminal function check, CA test)
Accessories: power cord
Main specifications: Output 12W+12W Output tube EL34 Impedance 4Ω/8Ω W120 × D465 × H125mm Weight 4.2kg
The price has been drastically reduced! 2022/1/16 selling price 118,000 yen The successor of the name machine SimplyTwo. Class A tube type integrated amplifier from Unison Research. The sweet and glossy tone unique to vacuum tubes matches well with vocals. It is a product with excellent interior design and size. The appearance is dull. Serial 01160008 (Satoshi Yonejima)
Maintenance information: 2021.11.25 maintained (both ECC82×2 are replaced. Total inspection of soldering of the board, correction of missing through-holes. (EL34 bias check, inter-terminal voltage measurement, normal value, maximum output check, noise characteristic confirmation, wood plate oil wax treatment, input/output terminal function check, CA test)
Accessories: power cord
Main specifications: Output 12W+12W Output tube EL34 Impedance 4Ω/8Ω W275×D465×H125mm Weight 4.2kg
Disposal prices have been reduced! (Member discounts are not applicable) 2023/7/26 Sales price 248,000 yen Maintenance completed! Vacuum tube premain amplifier with built-in authentic PHONO equalizer. The pleasant sound typical of Uesugi makes vocals and stringed instruments sound lustrous. It has a PP configuration with a triode tube connection with driving power, and the mid to low range is also substantial. As for the exterior, there is a small scratch on the front. Serial 260 (Miura Kimiya)
Maintenance information: 2023.7.26 Maintained (left channel output tube replacement (right channel also replaced at the same time) EQ circuit vacuum tube replacement. Main and balance volume exchange. Switch cleaning. Bias check adjustment. Output sound check (check about 20W) interior and exterior cleaning)
Accessories: instruction manual
Main specifications: 6CA7 specification output 20W+20W PHONO (mm) input W445 × H170 × D432 mm weight 22 kg
Esoteric Company Limited Edition of 400 units! This is a famous pre-main amplifier for Tannoy's reference. It's simple and easy to handle, and you can enjoy the moist sound of a vacuum tube. The exterior has dirt, scratches, and dullness. Serial 029 (Kimiya Miura)
Maintenance information: 2023.6.7 operation confirmed
Accessories: instruction manual, power cable
Main specifications: 6L6GC vacuum tube using line-only model, ECC82/83 output 18W+18W (8Ω) compatible impedance 8-16 ohms W320 x H203 x D328 mm 17.5 kg
The price has been drastically reduced! 2024/3/27 sales price 250,000 yen Esoteric Company limited edition of 400 units! This pre-main amplifier is famous as a reference for Tannoy. It's simple and easy to handle, and you can enjoy the moist sound of the vacuum tube. There are line marks on the side of the exterior (Oikawa Tetsuji)
Maintenance information: 2024.3.27 Operation confirmed
Accessories: power cable, instruction manual, original box
Main specifications: 6L6GC vacuum tube, ECC82/83, output 18W+18W (8Ω), compatible impedance 8 to 16 ohms, W320 x H203 x D328 mm, 17.5 kg
ESOTERIC COMPANY 400 units limited model! It is a famous primaine amplifier for tannoy reference. Simple and easy to handle, you can enjoy the moist sound of the vacuum tube. Appearance has a stain mark on the dullness and logo. Cereal 10101126 (Eiji Tamura)
Maintenance Information: 2021.6.2 Maintenance (6 RCA terminals desorption and strengthening. The output tube 6L6GC is replaced by PhiipSecG 4. Abrasive cleaning of the pins of the first stage vacuum tube to stabilize operation. Detect electrolytic capacitor degradation by power supply circuit ripple voltage measurement, no problem. Output tube cathode ground point improvement treatment. Good with 2Vpp after 40Vpp tuk transformer immediately after rectification. Output tube operating current check etc. Interior and exterior chassis cleaning (Good to carry out residual noise, maximum output operation test and capacitive load test.)
Accessories: Power cable
Main specifications: Line dedicated model use vacuum tube 6L6GC, ECC82/83 output 18W+18W (8Ω) Compatible impedance 8-16 Ω W320 × H203 × D328mm 17.5kg
Line dedicated vacuum tube premain made by Kosakai Electronics “TUBE WORKS”. There are 3 input systems. The details are unknown, but the Hashimoto transformer is used, and the vacuum tube is equipped with the Golden Dragon 6V6GT. How about a vacuum tube introductory machine (Oikawa Tetsuji)
Maintenance info: 2022.3.2 operation confirmed
Accessories: power cable
Main specifications: used vacuum tube 6V6GTA (golden dragon) × 4, 12AX7 (MITSUBISHI) × 2 W392 × H170 × D250mm 10kg (actual measurement)
Here's an affordable power amplifier. Selector and volume are included so you can use it as a primein. The color is calm green. It is a simple and clear feeling, but it is a sound quality that is inaccessible from this price. The appearance is a scratch on the hood and the transformer (Kimiya Miura)
Maintenance Information: 2021.4.11 Operation confirmed
Accessories: instruction manual, power cable
Main Specifications: 6BQ5 Push-Pull Output 12W 100V Use Vacuum Tube: 6BBQ 5×2, 12AX7 × 1, 12AU7 × 2, 5AR4 W 360 × H170 × D260mm Weight 12kg