The disposal price has been reduced. Member discounts are not applicable. 2025/5/4 sales price 248,000 yen This is a finished model assembled by the manufacturer, the latest version 3. A LINE exclusive preamp with a style that looks just like a power amplifier. Uses ELROG ER274B rectifier tube and 310A driver tube. The rich tone has a strong personality, reminiscent of foreign products, and is attractive. The range is relatively wide and is fully compatible with modern speakers. The appearance is fine, with no noticeable scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.5.4 operation confirmed
Accessories: copy of instruction manual, power cord
Main specifications: PSVANE WE310A x 2 ELROG ER274B x 1 W330 x H215 x D250 mm 12.74 kg (actual measurement)
The price has been reduced. 2025/5/5 sales price 178,000 yen Vacuum tube type line control amplifier limited production of 300 units. Thorough and precise construction is reflected in the sound. A joint transformer between Uesugi and Tamura is used for the power supply unit and balance input part, and analog-like sound is reproduced. There are no legs attached to the exterior, and the fixing bracket protrudes on the bottom, and a feeling of use such as dullness, scratches, etc. can be seen (Kobayashi Hitoshi)
Maintenance information: 2025.5.4 operation confirmed
Accessories: none
Main specifications: Vacuum tube using a dedicated preamp ECC83/12AX7 x 2 balanced input systems, 4 systems, unbalanced inputs, 4 systems, tape system, 1 system, pre-out 2 systems (RCA), W435 x H146 x D360 mm, approx. 14 kg
The price has been drastically reduced. 2025/4/27 sales price 283,000 yen LUXMAN tubular preamp. Adopts a 32-point ultimate contact volume. You can enjoy a clear, glossy vacuum tube sound while retaining the soft texture of lax. The simple, easy to operate, and sophisticated design is attractive. There are no noticeable scratches (Sasaki Shota)
Maintenance information: 2025.4.27 operation confirmed
Accessories: none
Main specifications: input impedance 170mV/40kΩ output impedance 1V (maximum 10V) /2 kΩ input terminal 6 systems output terminal systems (1 system is a TAPE output terminal) SNR 98dB W438 x H155 x D428 mm weight 18 kg
Refreshed and maintained with attention to detail, such as replacing deteriorated parts! An original C22, a famous machine admired by enthusiasts. The thick, soft, and strongly extruded tone is a pleasant tone that can only be experienced with an old McKinn. It has a rich tone centered around the middle range with a high concentration, and it sounds with plenty of realism. Conditions include dullness over time and small wounds. Serial 26A17 (Yamato Yuki)
Maintenance Information: 2025.5.3 Maintained (V1 Vacuum Tube ECC83 Defect Replacement*Operation Checked Including Other Aging)
2025.4.18 Maintained (2 RCA jack retightening repairs, main volume replacement. Switching noise reduction measures → additional 6 1/4 W resistors and 4 additional short pins. Block capacitor 20/40/1000 μF defective replacement. Replace 3 40 μF electrolytic capacitors and others for defects and deterioration. Replace 0.22 μF noise oil capacitors and replace 4 with BLACKCAT. Replace 4 oil capacitors with 0.01 μF BlackBeauty. 2 1/2W resistor deterioration replacements Vacuum tube socket and RCA jack caulk repair
(Operation has also been checked with AC 100 to 117 V)
Accessories: Copy of instruction manual (English)
Main specifications: 117 V specification, 4 input systems, 2 phono systems, frequency characteristics, 20 Hz to 20 kHz (± 0.5 dB), signal-to-noise ratio, 85 dB (high level), 62.5 dB (low level), distortion ratio 0.2%, W406 x H138 x D330 mm, 7.3 kg
The disposal price has been reduced! (Member prices are not applicable) 2025/4/27 sales price 998,000 yen First arrival at Hi-Fi Hall! Vacuum tube control amplifier incorporating Macton's latest technology. A parallel SEPP circuit is used. This model was developed in search of the best sound quality in the world. 12AU7 x 2 and 12BH7 x 8 are used for the vacuum tubes used. Equipped with a high-capacity high-voltage electrolytic capacitor, you can enjoy sound quality without deteriorating even when running for a long time. The sound is strong and firm even though it is a vacuum tube. There are scratches and scratches on the exterior. Serial 16J02 (Fujisawa Yukishi)
Maintenance information: 2025.4.27 operation confirmed
Accessories: power cord
Main specifications: vacuum tube 12 AU7 x 2 and 12 BH7 x 8 using 7 line inputs, frequency characteristics, 10 Hz to 100 kHz, W465 x H170 x D370 mm, weight 19 kg
The price has been drastically reduced. 2025/4/26 sales price 258,000 yen Maintenance has been completed for the main volume, balance volume, replacement of 4 coupling capacitors, rotary switch polishing and cleaning, etc. This is Yoshiro Uesugi's first control amplifier. The beautiful and delicate tone also expresses the nuances that drift through each song. Furthermore, it has a reputation for phonos, and the overhang is exquisite, and it is a gem that I can recommend to analog fans. There are noticeable stains on the exterior and top plate, and a feeling of use such as dullness and abrasions can be seen (Kobayashi Hitoshi)
Maintenance information: 2025.4.25 maintained (main volume, balance volume, 4 coupling capacitors, AC outlet replacement missing screws added, rotary switch polishing and cleaning protective agent application, cleaning, audio check for each input/output)
Accessories: power cord, connection cord
Main specifications: Vacuum tube used ECC83/12AX7 AUX input 3 systems phono input 3 systems line input 2 systems output 2 systems [main unit] W532 x H146 x D360 mm 10.7 kg [power supply unit] W127 x H146 x D314 mm 4.3 kg
Refreshment maintenance completed, including 14 capacitor replacements! Early 11100th original Model 7. You can enjoy a glossy mid to high range sound with a high sense of transparency and a thick, exquisite balance. It's a model that has been over half a century since it went on sale for analog fans, but it's still one they admire. The lustrous, indescribable tone is an appeal that cannot be enjoyed on modern devices. Appearance, dullness, small scratches, and a feeling of use can be seen ※ Since this model is in the No. 11000 series, tone switching noise is slightly larger due to the switch structure. Also, if you are concerned about sound leakage when the volume is reduced, use the OUT LEVEL on the back. Serial 11104 (Kobayashi Hitoshi)
Maintenance information: 2025.4.25 maintenance completed (replacement of 10 oil capacitors 0.01 μF and others, replacement of 4 electrolytic capacitors, replacement of 200 μF and others, selenium deterioration countermeasures → 2 diodes added, 2 short pins added, side pads replaced, vacuum tube sockets and RCA jack caulking repairs, operation check with AC 100 to 117 V)
Accessories: none
Main specifications: tubular control amplifier, vacuum tube, ECC83/12AX7, 3-stage NF equalizer, NF type step switching control, W453 x H185 x D267 mm, 7.5 kg
The disposal price has been reduced. Member discounts are not applicable. 2025/3/2 sales price 178,000 yen Maintained! A rare Fisher tube control amplifier. The 2 phono inputs are attractive. The high range is decent, but the round, rich, and powerful mid-range is unique to FISHER. The sound is light, bright and friendly. *EQUALIZATION's LP and 78 are only valid on CHANNEL A. ※There is a slight gap in the treble, but it cannot be repaired due to the structure of the circuit. There is a feeling of use over time. Serial 33849-D (Murakoshi Yoichi)
Maintenance information: 2025.3.1 Maintained (volume contact failure repair. Operation has been checked with AC 100 to 117 V)
2024.4.17 Maintenance (re-strengthening treatment for all selector knobs (*Please do not remove them as much as possible.) Volume disassembly grease up treatment for BASS, main volume disassembly, cleaning and repair (due to the structure, there are some gang errors and sound leaks when narrowed down to a minimum. (If you are concerned, only RIAA 1 and AUX1 can be adjusted with LEVEL SET on the top surface.) Electrolytic capacitor 1000 μF replacement, vacuum tube socket and RCA jack re-caulking repair. Operation check with AC 100 to 117 V) 2021.5.15 maintained (repair of poor contact with various parts, correction of lever deformation points, replacement of 30/30/10/10 μF defects, vacuum tube socket and RCA jack caulk repair ※ Since the main volume is a special type with a loudness terminal, some gang errors will occur after 12:00. AUX1 and PHONO can be fine-tuned with the LEVEL SET on the top. *Other operation checks have been made (4 vacuum tube shield cases are missing)
Accessories: none
Main specifications: vacuum tube 12AX7, 12AT7, 6V4 using PHONO2 system W390 x H120 x D210 mm 6.6 kg
The disposal price has been reduced. Member prices are not applicable. 2025/4/9 sales price 148,000 yen Maintained! Chris Kit's last tubular preamp. Similar to the Mk5, it is based on the Macintosh C-22 circuit, and features a rich touch of sound. The glossy mid-range actually vividly expresses wind instruments and vocals. *Since the gain is extremely high, a power amplifier with volume is recommended. There are small scratches and dullness on the front panel (Daiki Goto)
Maintenance information: 2025.4.9 Maintained (contact cleaning procedure by removing and detaching the wiring of each switch. Coupling capacitor, LowBoost High CUT capacitor constant adjustment, bypass capacitor replacement procedure. Contact cleaning procedure using Selector SW, Volume SW, Stereo-rev SW, HighCut -LowBoost SW detachment/disassembly. Wiring deterioration and disconnection cable replacement and incorrect wiring correction procedures. Replace the deteriorated vacuum tube (12AX7*4). Other sound output tests are good.)
Accessories: manual, power cable,
Main specifications: use vacuum tubes 12AX7 x 4, 12AU7 x 2 inputs: PHONO (MM) 2 system input: LINE (AUX, TUNER, TAPE) 3 system output: Pre Out 1 system/TAPE Monitor 1 system size: approx. W460 x H160 x D270 mm Weight: approx. 7.6 kg
Maintenance has been completed, such as creating a new DC power cable! This is Yoshiro Uesugi's first control amplifier. The beautiful and delicate tone also expresses the nuances that drift through each song. Furthermore, it has a reputation for phonos, and the overhang is exquisite, and it is a gem that I can recommend to analog fans. As for the exterior, there are threads and small scratches on the cabinet. Serial 107 (Yonejima Satoshi)
Maintenance information: 2025.4.17 Maintained (DC power cable created, DC receptacle replacement, coupling, capacitor, replacement for leaks, main volume, replacement, vacuum tube pin cleaning, mold removal, waxing, AC cord attached, please connect the DC connector securely and be sure to close the lock ring. Check each input/output)
Accessories: power cord
Main specifications: Vacuum tube used ECC83/12AX7 AUX input 3 systems phono input 3 systems line input 2 systems output 2 systems [main unit] W532 x H146 x D360 mm 10.7 kg [power supply unit] W127 x H146 x D314 mm 4.3 kg
Maintenance has been completed, including cleaning each switch and replacing deteriorated vacuum tubes! The tubular preamp that graced the end of the Lux kit. It features a soft, warm sound, and lustrous classical and vocals. What is remarkable is the amplifier block, which has been finished to the highest quality. This is a first-class amplifier that Lux Kit is proud of. There is a small scratch (Daiki Goto)
Maintenance Information: 2025.4.16 Maintained (· Electrolytic Capacitor 2200 μF and Other Deterioration Replacements 3, Resistors 1/2 W Degradation Replacements · External and Internal Simple Cleaning Treatment · Phono Noise Reduction Measures → 2 Additional Shield Cases · Vacuum Tube Socket and RCA Jack Caulking Repairs ※ Other Operation Checked with AC100V)
Accessories: manual, original box
Main Specifications: Tubular Control Amplifier Kit Output Voltage: Rated 2V Input Impedance: Phono mm/50kΩ CD, Line, Tuner/100kΩ W493 x H142 x D403 mm 11.5 kg
The price has been drastically reduced. 2025/3/1 sales price 138,000 yen All switch contact boards have been disassembled and cleaned, and maintenance has been completed, such as converting lamps to LEDs. This is the first Lax thin tube preamp to be in stock in a long time. Although it is a CL34 kit model, it is one where you can feel the good feel unique to vacuum tubes in a relatively clean sound. You can see a feeling of use such as appearance, dullness, small scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.3.1 maintenance completed (all switch contact board detachment/disassembly cleaning (excluding power switches) MUT relay replacement selector lamp LED replacement DC balance adjustment, sound output, residual noise, etc. operation check)
Accessories: none
Main specifications: used vacuum tube 12AX7 × 4 12AU7 × 4 W438 × H77 × D332 mm 6.4 kg
The main volume was replaced with a CLAROSTATT one, and deteriorated parts such as capacitors were renewed for a full refresh! Original Model 7 You can enjoy a glossy mid to high range sound with a high sense of transparency and a thick, exquisite balance. It's a model that has been over half a century since it went on sale for analog fans, but it's still one they admire. The lustrous, indescribable tone is an appeal that cannot be enjoyed on modern devices. You can see the appearance, dullness, small scratches, and a feeling of use. Serial 11873 (Kobayashi Hitoshi)
Maintenance information: 2025.4.3 maintained (replacement of 2 vacuum tube shield cases, replacement of 20 μF and 2 others, replacement of 0.01 μF and 2 others, replacement of oil capacitors with 8 BlackBeauty batteries, lamp replacement, 2 short pins added, vacuum tube ECC83 replacement, main volume replacement with CLAROSTATT, vacuum tube socket and RCA jack caulking repair. Operation has also been checked with AC 100 to 117 V (since this model is the No. 11000 series, the switching noise of TREBLE is high due to the structure of the switch. Also, if you are concerned about sound leakage when the volume is minimal, narrow down the OUT LEVEL on the back.)) 2010.10.7 maintained (power supply unit twist lock capacitor replaced and added, coupling capacitor (BB) replaced, equalizer capacitor replaced from volume Alps to Cosmos, switch contact cleaning, vacuum tube socket contact cleaning, spec inspection, and various operation inspections) 2013.11.9 maintained (AUX part: vacuum tube 12AX7 defective replacement (Ampex) 1) Phono part: vacuum tube 12AX7 deterioration replacement 1, shorting plug added, VT socket/RCA jack re-caulked, 1 large knob added)
Accessories: instruction manual (copy)
Main specifications: tubular control amplifier, vacuum tube, ECC83/12AX7, 3-stage NF equalizer, NF type step switching control, W453 x H185 x D267 mm, weight 7.5 kg
The price has been reduced. 2025/3/24 sales price 79,800 yen Maintained in 2023! A tube control amplifier that uses a CR non-feedback type equalizer section by PROFACT, a high-class vacuum tube amplifier manufacturer located in Asahikawa, Hokkaido. You can enjoy straight, realistic sound with a simple circuit configuration that omits tone control. There is a thick line scratch on the bottom of the front panel (Murakoshi Yoichi)
Maintenance information: 2023.4.13 maintenance (selector switch, TAPE monitor switch, disassembly contact polishing grease application. Volume check. (Check the operation of each input/output)
Accessories: power cable
Main specifications: use vacuum tube E88CC x 3 input PHONO2 system, LINE 2 system W480 x H105 x D300 mm 8.0 kg
Vacuum tube control amplifiers. Equipped with a 4-band equalizer that can control the sound in detail. In addition to being equipped with balanced terminals for input/output, it is also equipped with 2 unbalanced outputs. It's easy to use, and I like the high frequency extension typical of a triode and the rounded sound of a vacuum tube. There is a feeling of use such as small scratches and dullness over time. ※The hood is out of stock. Serial 14030093 (Yamato Yuki)
Maintenance information: 2025.3.29 Operation confirmed
Accessories: remote control original box
Main specifications: 5 input terminals (PHONO, LINE1-3, BALANCE) compatible cartridge MM, 3 output terminals (LINE1-2, BALANCE) W345 x D310 x H195 mm 13 kg
※ There is no problem with operation, but since it is made by a garage manufacturer, it will be handed over as is. Although it has a simple structure, it is recommended for those who want to enjoy a vacuum tube casually with a soft, plump sound similar to a vacuum tube. The exterior has slight dullness and a feeling of use (Murakoshi Yoichi)
Maintenance information: 2025.3.24 sound output confirmed
Accessories: instruction manual, power cord
Main specifications: 5 input systems, 2 output systems W395 × H95 × D310 mm 4.5 kg
A fully restored model in which 12 internal deteriorated capacitors have been replaced, levers and switches have been completely disassembled and cleaned, and the cabinet repaired! It's already been over 50 years since it went on sale, but you can comfortably listen to the sounds of that time with a safe 2-year warranty. A classic vacuum tube preamp that is supple and thick. The spacious, high musical sound quality is an original character from an old favorite era. It is a historic amplifier that expresses a wide range of music genres in a rich and soft way (Murakoshi Yoichi)
Maintenance information: 2025.1.29 Maintained (12 capacitors replaced, switch volume complete disassembly contact cleaning, oxidation and sulfidation prevention measures. AUX-1 LEVEL, 12AX7 vacuum tube replacement, internal/external cleaning Check frequency characteristics and distortion ratio.) 2024.12.4 Maintained (cabinet exterior repair/polishing/painting)
Accessories: power cord, instruction manual (copy)
Main specifications: Lux method, NF type, tone control frequency band 10 to 30,000 Hz, using a signal-to-noise ratio of 60 dB or more, vacuum tubes, 12 AX7 x 5, ECC83 x 2, W476 x H190 x D275 mm, 12 kg
The price has been reduced! 2025/3/10 sales price 598,000 yen Refreshed and maintained in 2016, including 11 capacitors, main volume, and front panel replacement! An original C22, a famous machine admired by enthusiasts. The thick, soft, and strongly extruded tone is a pleasant tone that can only be experienced with an old McKinn. It has a rich tone centered around the middle range with a high concentration, and it sounds with plenty of realism. There is fine dust, peeling, and rust inside the panel. Serial 49A95 (Fujisawa Yukishi)
Maintenance information: 2023.12.23 maintained (main volume disassembly, cleaning repair, 6 additional 1/4 W resistors due to TREBLE crack reduction measures, input ground reinforcement repair, 9 1W and 1/2 W resistance replacement, balance volume interruption replacement)
2016.7.11 Maintained (11 deteriorated capacitors replaced. Main volume replacement. 2 side lamp replacements lamp switch repair Front panel replacement Each Switich and Volume repair. RCA jack caulking and polish repair Check other parts)
Accessories: No accessories
Main specifications: 117 V specification, 4 input systems, 2 phono systems, frequency characteristics, 20 Hz to 20 kHz (± 0.5 dB), signal-to-noise ratio, 85 dB (high level), 62.5 dB (low level), distortion ratio 0.2%, W406 x H138 x D330 mm, 7.3 kg
The price has been drastically reduced. 2025/3/15 sales price 178,000 yen Maintenance completed in 2023! A hybrid audio research control amplifier. It's not flashy, and it feels like you can listen to a steady, tasteful sound. How about playing an ALTEC speaker together with a power amplifier using a 300B or the like. You can see a feeling of use such as appearance, dullness, scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2023.7.23 Maintenance completed (correction due to disconnection due to wire corrosion in the high voltage circuit, replacement of an electrolytic capacitor near the heat source, replacement due to broken rubber feet, additional replacement due to broken screws or missing parts, switch cleaning, etc., sound check for each input/output, interior and exterior cleaning)
Accessories: copy of instruction manual
Main specifications: hybrid control amplifier with PHONO (MM), using 6DJ8 (phono section and high level stage), 7 input systems (PHONO 1 system), 3 output systems (1 pre-out system, 2 REC out systems) W480 x H134 x D260 mm 5.9 kg
Audio Tekne's premium vacuum tube preamp is in stock for the first time at Hi-Fi! A preamp similar to the ultimate flat amplifier TFA-9501. An ultra-large super permalloy core, and a wire-ratio ATT is built into the input/output side. There is no habit, and there is also a sense of scale. You can enjoy the warm sound quality unique to vacuum tubes. The exterior is dull. Serial 12021512 (Yonejima Satoshi)
Maintenance information: 2025.3.9 Maintained (rotary switch and vacuum tube pin cleaning, audio check for each input and output. The PHONO input requires an EQ amplifier. PHONO input switching also switches the ground, so pop noise appears when the input is open, but this is a specification. The XLR connector is ③ HOT)
Accessories: power cable
Main specifications: vacuum tube stereo line amplifier W420 x H170 x D335 mm weight 23.5 kg
Maintained! A full-stage vacuum tube preamplifier for signal systems with a built-in phono equalizer amplifier. It is a finished product assembled to a high quality with the Amtrans parts set. The vacuum tube is also equipped with Westinghouse and RCA, so you can hear a much more tasteful sound compared to regular products. There are small scratches on the exterior (Hiura Katsuji)
Maintenance information: 2025.2.28 Maintained (power switch, cleaned and greased. Vacuum tube pin cleaning cable clamp disconnection correction comprehensive test.)
Accessories: power cable
Main specifications: line 4 systems PHONO (MM) pre-out 2 system vacuum tubes 12AU7 x 2, 12AX7 x 4, body dimensions W352 x H66 x D298 mm (including protrusions), body weight approx. 3.9 kg
Maintained! A tubular preamplifier composed of a vacuum tube and a solid state hybrid circuit. The freshness is high, and the sound that makes you feel the intensity of analog colors and the thickness of the lines is attractive. In addition to the exterior and disappearing characters, you can also see a feeling of use such as dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.2.11 maintained (2 electrolytic capacitors replaced, running check) 2024.10.28 maintained (2 phono circuit resistors replaced, vacuum tube socket replaced, terminal check switch, circuit, TAPE1.2 other level, TAPE terminal, tuner terminal, input/output level check for all terminals, running check) 2024.7.12 maintained (balance volume, input select) The terswitch contacts have been cleaned. Electrolytic capacitors and rubber feet replaced. (I/O terminal cleaning, each input/output operation check)
Accessories: copy of instruction manual
Main specifications: 1 phono input system, 3 line input systems W483 x H58 x D300 mm 8.1 kg
The disposal price has been reduced! (Member prices are not applicable) 2025/2/15 sales price 198,000 yen 2024/12 maintenance completed! Vacuum tube preamp. A preamp where you can enjoy the bright sound unique to vacuum tubes. It is an amplifier with a high mid-range texture that reproduces music naturally, with supple sound quality with a nice feel. There are abrasions and bumps on the exterior (Tomoho Asaine)
Maintenance information: 2024.12.20 Maintained (PHONO EQ circuit first stage tube replacement. Main volume and rotary switch disassembly cleaning protective agent applied. Vacuum tube pin cleaning. (Voice check for each input/output)
Accessories: power cord
Main specifications: 12AX7 x 3 12AU7 x 3 PHONO 3 system, LINE 4 system (PHONO is for MM only) body size W500 x H186 x D326 mm weight 14.6 kg (actual measurement)
Maintained! kit model It is a high-quality, natural tone that is both warm and clean. In particular, you can hear sounds that make you feel comfortable and warm with phono. It is a preamp that is combined with U-BROS-1/KIT, and when used together, you can hear the expressive power of the sound even better. The exterior is slightly dull and has small scratches. Serial 111 (Murakoshi Yoichi)
Maintenance information: 2025.2.20 maintained (main volume, RCA jack replacement, vacuum tube pin cleaning, switch check and looseness, audio check for each input/output)
Accessories: none
Main Specifications: Tubular Preamp Kit Input Phono x 1/Line1 to 3/Tape Play Output/Recording Out/Preamp Out Rated Output/Phono Equalizer 200mV Line Amp 1V Line Amp Max Output 25V Input Impedance Phono 1 to 3, Tape 86 kΩ Output Impedance/Phono Equalizer 800Ω Line Amp 1000Ω Playback Frequency band 20 Hz to 20 kHz vacuum tube ECC83/12AX7 x 3 power consumption approx. 12 W size W337 x H133 x D314 mm weight approx. 6 kg
Maintained! Comes with an optional USB module. The world's first control amplifier compatible with different vacuum tube replacements. It's a compact size that you can play with. It is round and has a rich sound. 12AU7 x 3 line configuration featuring the rich overtones of the SV-310 series (Murakoshi Yoichi)
Maintenance information: 2025.2.11 maintenance (balance and main VR replacement, solder scum removal, screw loosening and tightening vacuum tube pin cleaning, operation check)
Accessories: power cord
Main specifications: 3 input systems, 1 LINE/USB1.1 switching output 2 systems ECC82 x 3, Sunvalley 5AR4 x 1 USB input compatible OS Win XP or later, Mac OS X or later, sampling rate 32 kHz to 48 kHz size W250 ✕ H135 ✕ D225 mm weight 3.6 kg
The disposal price has been reduced! (Member prices are not applicable) 2025/2/9 sales price 188,000 yen Maintained! Uesugi's preamplifier for vacuum tube lines. It is not a printed circuit board, but an old-fashioned lug board wiring, and manual wiring by veteran craftsmen is truly beautiful. You can enjoy clear and neat wasugi sounds. There is a slight scratch on the wood cab. Serial 291 (Tomoho Asaine)
Maintenance information: 2025.2.9 maintained (first stage tube replacement, main volume, balance volume, switch cleaning, vacuum tube pin cleaning, and input/output were checked)
Accessories: none
Main specifications: 5 input systems, 2 output systems W435 x H146 x D360 mm 13 kg