The price has been reduced! 2025/12/10 sales price 198,000 yen Maintained! Currently, 211 is mounted. The transmitter tube makes an aesthetically pleasing sound. It creates a smooth high range of quality and transparency, and allows you to listen to the beautiful sound unique to the company. There are small scratches on the exterior. (YONEJIMA Satoshi)
Maintenance information: 2025.12.10 Maintained (volume replacement, solder correction, vacuum tube pin cleaning, condenser position misalignment correction, ham balance adjustment. Bias check output audio check. (Check output approx. 8W) Turn on the right side of the power switch first, then turn on the left side after about 30 seconds.)
Accessories: instruction manual, power cord
Main specifications: rated output 8W+8W (8Ω) size approx. W374 x H240 x D303 mm weight approx. 22 kg
Fully maintained in July 2025! We have carried out detailed refreshment maintenance, such as replacing vacuum tubes and block capacitors, so that they can be used for a long time! The fresh, glossy tone in the mid to high range is an appeal not found in the MC275. There is little rust on the body, and it remains in good condition. There are some tape marks on the front panel (Daiki Goto)
Maintenance information: 2025.7.18 maintained (12BH7 x 2, 12AU7 replacement block capacitors, 5 oil capacitors, 1 electrolytic capacitor, 4 resistors, 1 diode, selector knob, AC cord replacement vacuum tube socket, and RCA jack caulking repair operation checked)
Accessories: none
Main specifications: 40W+40W vacuum tube GE 6L6GC x 4, 12AX7 x 3, 12AU7x2, 12BH7 x 2 frequency characteristics 16 to 40,000 Hz dimensions W400 x D265 x H195 mm weight 25 kg
Maintained! TVA-1 is a famous British vacuum tube power amplifier. Equipped with a sturdy, heavy transformer, this is reflected in sound quality. The sound quality is thick and has good extrusion, and the driving power is off par. You can enjoy the attractive vacuum tube sound with the tenacity of the mid-range and the bright mid-high range. Serial 002170 (Fujisawa Yukishi)
Maintenance information: 2025.12.4 maintained (RCA jack, 5 electrolytic capacitors, AC cord, rubber feet, each replaced due to defects and deterioration. Solder correction. Vacuum tube pin cleaning. Bias adjustment. Output sound checked (approx. 65W at 8Ω load)
Accessories: No accessories
Main specifications: 70W+70W W457 x H191 x D279 mm 38.1 kg
Sun Valley vacuum tube push-pull power amplifier. It is a model that has been refined over 3 generations since the first model. The sound quality is smooth, and the texture unique to vacuum tubes, which are moist and glossy, is attractive. The exterior is dull, and some lettering is missing (Yonejima Satoshi)
Maintenance information: 2025.12.2 operation confirmed
Accessories: instruction manual, power cord
Main specifications: Vacuum tubes used PCL86 (Ei) x 4 tubes 7.0 W+7.0 W (8 ohms, THD 10%) W130 x D230 x H150 mm 5.0 kg
Maintained by Triode! Triode 300B mono tube power amplifier. It is an A class para single using the 300B, which the company excels at, and is also compatible with floor-type speakers. The sound is clear, modern, yet subtly warm. There is also a balanced input, which demonstrates its ability even with modern systems. There is a small scratch on the top plate. Serial 07090337 07090338 (Kanai Hidetsugu)
Maintenance information: 2025.12.2 maintenance completed (12AU7 and coupling capacitors deteriorated on the 337 side. Deterioration was seen in 12AU7, coupling capacitors, and electrolytic capacitors on the 338 side. (Deteriorated parts were replaced, and each part was adjusted, auditioned, and aged.)
Accessories: power cable, original box
Main specifications: used vacuum tube 300B×2 12AX7×1 12AU7A×1 A grade para-single 20W+20W (8Ω) output 6Ω/8Ω/16Ω input RCA1 system balance 1 system (No. 2 HOT) W176 × D440 × H220 mm 15 kg/unit
Luxman slim mono power amplifier. The driving power and tight sound unique to mono are characteristic. The excellent channel separation also stands out, and the resolution is high, so it is suitable for those who listen to sound in an analytical way. There is a slight scratch on the top plate. Serial G01210156, G01210164 (Fujisawa Yukishi)
Maintenance information: 2025.12.1 operation confirmed
Accessories: instruction manual, power cord, connection cord
Main specifications: 100W (8Ω) SNR 118dB 2 line input systems (RCA/XLR) W467 x H86 x D425 mm 10 kg/unit
*Currently sold. ELEKIT tube power amplifier. The compact yet elastic, straight sound quality is so attractive that you wouldn't think it's small, and you can fully enjoy the feel of a vacuum tube. Dullness over time and slight abrasions over time can be seen (Yamato Yuki)
Maintenance information: 2025.11.30 Operation confirmed
Accessories: none
Main specifications: Vacuum tubes used, SOVTEK 12AX7WXT x 1, SOVTEK 5881/6L6WGC x 2
W150×H141×D410mm 5.5 kg
The price has been reduced. 2025/11/26 sales price 348,000 yen ZAIKA's 300B single mono power amplifier. While increasing bandwidth, it has musical distortion characteristics centered around 300B's unique secondary distortion, and can be enjoyed regardless of genre with tuning that maximizes 300B likeness. The vocals are particularly good. The appearance is fine, with no noticeable scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.11.25 Operation confirmed
Accessories: none
Main specifications: 300B x 2 5U3C x 2 310A x 2 W230 x H210 x D400 mm 13.5 kg (actual measurement)
Self-biased KT88 single tube power amplifier The beautiful mid-high range sound unique to single amplifiers is attractive. It's a relatively efficient speaker and it seems to work well together. There are threads and small scratches on the exterior (Yonejima Satoshi)
Maintenance information: 2025.11.26 Maintained (The output vacuum tube KT88 replaced the LRCH minute, and the plate current was set to 60 mA. Output stage cathode resistor and cathode bypass electrolytic capacitor replacement. Output stage grid leak resistor replacement and coupling capacitor replacement. Power supply ripple filter addition procedure. Operation voltage check and output terminal load test performed, overall frequency characteristic check, good sound output test, undistorted output)
Accessories: No accessories
Main specifications: gain 18dB input 350mV/2.8V 1W output (8Ω) W185 × D400 × H185 mm 7 kg
The disposal price has been reduced. Member discounts are not applicable. 2025/11/11 sales price 598,000 yen Maintained! Conrad Johnson's dreadnought power amplifier. Anyway, it has tremendous driving power, and it drives even large speakers well. The braking power is also excellent, and I am overwhelmed by the tight bass and firm mids. There is a feeling of use such as dullness, small scratches, dirt, etc. Serial 5101041 (Takasaki Atsushi)
Maintenance information: 2025.11.11 Maintained (power switch replaced due to burn-in (capacity increased from 10A to 30A in consideration of durability), addition of missing screws, vacuum tube pin cleaning, output sound check, interior and exterior cleaning)
2011.3.5 maintained (bias adjustment, vacuum tube socket contact cleaning, power cord (plug included), input terminal replacement, internal and external cleaning)
Accessories: none
Main specifications: 200W+200W 6550 triple push-pull impedance 4/8/16Ω switching W484 × H273 × D600 mm 61.3 kg
The disposal price has been reduced. Member prices are not applicable. 2025/9/16 sales price 148,000 yen ※The power supply specifications are different between the 2 units, but maintenance is performed according to the 117V specifications. Sufficient output is produced even at 100V. Maintenance includes replacement of 6550A4, 42 5ARs, 2 capacitors, 9 resistors, etc. 117V specification DYNACO's tubular mono power amplifiers are highly popular. The sleek, straight, and energetic sound that comes out of the small body is attractive. Combinations with Altech and JBL are a staple, and they make jazz and rock sounds powerful and full of realism. The color of the transformer is different between the two cars, and there are rust, dullness, small scratches, etc. appropriate for the model year (Oikawa Tetsuji)
Maintenance information: 2025.9.15 Maintained (all soldering around the vacuum tube socket and block capacitor terminals corrected, wiring to the preamp power socket was implemented, selenium in the bias power supply was changed to silicon diodes for preventive maintenance, electrolytic capacitor replacement on the bias power supply unit (2 pcs/Ch), lead wire soldering correction to the board, bias volume cleaning, soldering correction around the speaker terminal, mica Confirmation of capacitor insulation and capacity (Ch.A specific repair) US socket cleaning, cleaning, exchange resistors with different values from the circuit diagram due to resistors on the board (3 positive: 47k, mounting: 51k), replacing those synthesized with resistors on the board and matching the resistance values with 1 resistor (2 locations 1.5m and 270k), board pattern peeling correction (Ch.B specific repair) power supply and output transformer cover changed to 4 points, operation test)
Accessories: none
Main specifications: tubular mono power amplifier vacuum tube 6550/5AR4/6AN8A output 60 W (measured output: 55.1/55.1 W at 117 V, 40.5/40.1 W at 100 V*1 kHz, 8 ohm) W229 × H190 × D229mm 11.5 kg
Maintenance has been completed, such as replacing 7 capacitors and 2 resistors. 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. There is a chip on the back socket (Daiki Goto)
Maintenance information: 2025.11.21 maintained (· input ground reinforcement treatment · main volume contact failure repair · block capacitor 100/30 μF deterioration replacement 4 pieces · 20 μF other deterioration replacement · bridge diodes → 4 replacement with normal diodes · resistor 2W, 1W 1/2W domestic → 10 replacement with USA-made ones · vacuum tube socket and RCA jack caulking repair. *Other operation checks have been performed (measured at 72 to 91 W SP: 8 Ω with rated output AC 100 to 117 V)
Accessories: manual
Main specifications: 75W+75W (in stereo) 150W (in mono) vacuum tube/12AX7 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
Maintained! 300B single amplifier using all Tamura transformers. It is a configuration that firmly holds the basics of a single amplifier using a rectifier tube. Furthermore, you can use it safely with 300B DC ignition with a regulator. The exterior is dull and has small scratches. Serial PRO-120720 (Yonejima Satoshi)
Maintenance information: 2025.11.19 Maintained (volume and RCA jack replacement, ground wiring, solder defect correction, SP terminal misdirection correction, nameplate deviation correction, bias check output, voice check output, approx. 8W confirmation)
Accessories: No accessories
Main specifications: used vacuum tube 300B x 2 6188 x 2 unknown tube x 1 output 7W x 2 W430 x D215 x H210 mm 19 kg
The disposal price has been reduced. Member discounts are not applicable. 2025/11/13 Sales price 148,000 yen Maintenance completed, including replacement of deteriorated vacuum tubes and capacitors. DYNACO's tube type mono power amplifier is highly popular. The sleek, straight, and energetic sound that comes out of the small body is attractive. Combinations with Altech and JBL are a staple, and they make jazz and rock sounds powerful and full of realism. You can see a feeling of use such as appearance, dullness, scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.11.12 maintenance completed (vacuum tube 6550 replacement x 2, block capacitor 30/20/20 μF replacement x 2, Mylar capacitor 820pF replacement x 2, resistor 1W deterioration replacement x 2, BiAS readjustment · vacuum tube socket and RCA jack caulking repair No. 14050400 resistor 1W replacement ※ other operation checks completed)
Accessories: none
Main specifications: tubular mono power amplifier vacuum tube 6550/5AR4/6AN8A output 60 W (measured output: 55.1/55.1 W at 117 V, 40.5/40.1 W at 100 V*1 kHz, 8 ohm) W229 × H190 × D229mm 11.5 kg
Maintained including 8 capacitors, 2 thermistors, 2 resistors, 1 12BH7 vacuum tube, and fuse replacement. The original MC275 is the pinnacle of Macintosh tube amplifiers. A famous historical machine that intensely entertains music with its velvety luster and strong tone. Instead of resolution or wide range, the rich sound that makes you feel a sense of life is truly the Macintosh sound itself. There are dullness over time, small scars, etc. (Oikawa Tetsuji)
Maintenance Information: 2025.11.15 Maintained (Block Capacitor 100/30 μF Defective and Deterioration Replaced 2, Fuse 5A Slow Blow Defective Replacement, 2 Thermistor Missing Replacement · Vacuum Tube 12BH7 Deterioration Replacement (2025.10.30 Supplied Item Arrived) · Oil Capacitor 0.15 μF Other TRW, Good All Made → 6 Replaced by BlackCat · 1 W Resistance Degradation Replacement · 2 Vacuum Tube Sockets Also, RCA jack caulking repairs* Other operation checks have been performed (measured at 55 to 91 W SP: 8 Ω with rated output AC 100 to 117 V)
Main specifications: 75W+75W (in stereo) 150W (in mono) vacuum tube/12AX7 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
Maintained! Kit model of Old Marantz's greatest masterpiece power amplifier 8B. The exquisite bandwidth balance and good output set it apart from common old amplifiers. The information necessary for music is perfectly incorporated into the narrow range, and the high level of freshness is also exceptional. The exterior has a feeling of use such as dullness and small scratches. Serial T030064 (Takahashi Nobuyuki)
Maintenance information: 2025.11.9 maintained (vacuum tube 6BH6 replacement, block capacitor 60 μF replacement, 22 μF x 2 others replacement, SP terminal replacement, BIAS re-adjustment, vacuum tube socket and RCA jack caulking repair, operation check with AC 100V (measured with rated output 36W SP: 8Ω))
Accessories: none
Main specifications: 35W+35W 20Hz-40kHz W348 × H191 × D273 mm 22.5 kg
The price has been reduced. 2025/11/10 sales price 69,800 yen A rare ZAIKA stereo power amplifier. Simple, handmade wiring. The output is unknown, and the impression is that a small, high-efficiency speaker sounds simply and straight. Rust, dirt, small scratches, etc. are scattered on the interior and exterior (Murakoshi Yoichi)
Maintenance information: 2025.11.6 sound output confirmed
Accessories: none
Main specifications: used vacuum tube 6BM8 x 4 W402 x H186 x D231 mm 7.8 kg
Maintenance completed, including replacement of deteriorated capacitors! The initial lot of serial 1772, the original model 8, has arrived! This is a famous gem that has both thickness and sex appeal while making a quick sound. There is no boomy sound, which is a drawback of vacuum tube amplifiers, and it is a vintage sound that is still popular today due to its good tone and good balance. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.11.12 maintenance completed (AC cord exchange/vacuum tube EL34 noise exchange/2 vacuum tube 6BH6 deterioration replacements/2 electrolytic capacitors 25μF deterioration replacement/selenium deterioration countermeasures → diode addition/vacuum tube socket and RCA jack caulking repair*Other operation checks completed)
Accessories: bonnet
Main specifications: vacuum tube EL34, 6CG7 x 2, 6BH6 x 2 output 35W+35W W346 x H192 x D250 mm 21.9 kg
The price has been drastically reduced. 2025/10/30 sales price 398,000 yen Maintenance completed. A mono power amplifier with a switchable 5-pole connection (Tetrode) and a 3-pole connection (Triode). It also has power, and you can use a 5-pole connection that has a heavy core in the mid-range to enjoy wild American sounds, or you can enjoy an elegant 3-electrode connection that is inferior in power to a 5-electrode tube but has low distortion. It's a fun car to use depending on the sauce and mood. You can see a feeling of use, such as appearance, dullness, scratches, etc. *Never test sound output or output operation without load. Be sure to turn off the power before operating the SW (TRIODE and TETRODE) on the back (Kobayashi Hitoshi)
Maintenance information: 2025.10.28 maintenance completed (5 output vacuum tubes replaced and all vacuum tube sockets replaced, screen resistors and plate resistors replaced, drive stage cathode resistance exchanged, drive waveform balance adjustment and terminal vacuum tube bias adjustment (due to fixed bias system) and output tube run-in operation, voltage check of each part, residual noise check and overall frequency characteristic check, good load test, gain check)
Accessories: power cord
Main specifications: Rated output: Tetrode Mode: 175W/Triode Mode: 75W, vacuum tube used: 807 x 6/12 AT7 x 1, 6350 x 1, input impedance: 137 kΩ, impedance: 3 to 8 ohms, W480 x H260 x D230 mm 25 kg
The price has been reduced. 2025/11/5 sales price 198,000 yen Maintained at Sun Valley. The flagship model of Sun Valley's multipole power amplifier. This model is KT88 specification. An output transformer with a bifiler-wound custom-made by Hashimoto Electric is used. It achieves both a wide range of sound that is pleasant to listen to. This is a powerful power amplifier that can make even vintage speakers sound with modern speakers. There are small scratches and dullness overall (Oikawa Tetsuji)
Maintenance information: 2025.11.5 manufacturer maintained (bias adjusted to specified value with KT88, driver stage cathode resistor replacement, driver stage carbonized lead wire replacement. B2 coupling resistor replacement. (Confirm that each part is abnormal, such as soldering, etc., implement driver stage heating countermeasures, and measure output, gain, frequency characteristics, residual noise, and voltage of each part to confirm that it is abnormal)
Accessories: hood, power cable, instruction manual
Main specifications: used vacuum tube KT88 push pull 45W+45W KT88 x 4 (SVETLANA), 12BH7A x 4, CV4003 x 2 W400 x H380 x D220 mm 32 kg
The disposal price has been reduced! (Member prices are not applicable) 2025/10/18 sales price 798,000 yen Maintenance completed product including capacitor replacement! A single amplifier equipped with a vacuum tube “211,” which features brightly shining filaments. It's easier to drive and easier to handle than the 845, which is often compared. It features a slightly round, energetic, and powerful sound. Excellent compatibility with large ALTEC speakers, etc. There are some dullness and scratches due to aging (Yamato Yuki)
Maintenance Information: 2025.10.18 Maintained (22 μF Electrolytic Capacitors and 3 Additions; 3 Resistors; 1 W and 1/2 W Deterioration Replacement; 3 Resistors; 40 μF × 2 Deterioration Exchange; Vacuum Tube 211 Noise Exchange; HUM ADJ. Readjustment; Output Transformer Rewinding Repairs; Vacuum Tube Sockets and RCA Jack Caulking Repairs ※ Other operation checked with AC100V (rated output measured at 8W SP: 8Ω)
*The grid cap of the vacuum tube 310A has been repaired by adhesive. (Please refrain from extracting and inserting as much as possible)
Accessories: none
Main specifications: used vacuum tube GE 211 x 1, GE VT-4C x 1, WE 310A x 2, RCA 7-29A x 2
Dimensions and weight W500 x H273 x D364 mm 38.1 kg (all measurements are actual measurements, dimensions include protrusions)
*This is a self-made amplifier and will be sold as is without warranty. This PP power amplifier uses Toshiba's 6GA4 as the output tube, and it lets you listen to any genre with strong low frequencies and transparent high frequencies. The exterior has a feeling of use over time, such as dullness and small scratches (Asaine Tomoho)
Maintenance information: 2025.11.1 sound output confirmed
Accessories: power cable
Main specifications: Vacuum tubes used Toshiba, 6GA4 GE/4 unknown tubes, transformer using SANSUI/W-15-6 SANSUI/C-10-200 size weight
Maintained including output tube replacement! Arrived for the first time in about 10 years! Genuine Electri Pure Class A single power amplifier with a mono configuration using an 845. The sound is visually overwhelming, but the extrusion isn't as strong as it looks; rather, it has a sense of realism and is suitable for listening in a relaxed manner. There are small wounds and dullness (Oikawa Tetsuji)
Maintenance information: 2025.10.30 maintenance completed (output tube replacement, replacement rubber leg, missing installation due to wire corrosion, solder correction, vacuum tube pin cleaning, socket edge deformation correction, condenser fixed, foreign matter removal, rust removal, bias check, output voice check)
Accessories: power cable
Main specifications: 16W x 2 direct heat triode for audio, use size W310 x H240 x D610 mm, weight 21.5 kg
The disposal price has been reduced. Member prices are not applicable. 2025/10/22 sales price 148,000 yen Maintenance completed! DYNACO's tube type mono power amplifier is highly popular. The sleek, straight, and energetic sound that comes out of the small body is attractive. Combinations with Altech and JBL are a staple, and they make jazz and rock sounds powerful and full of realism. The exterior has noticeable paint peeling on one side and there is rust (Mizusaki Ryo)
Maintenance information: 2025.10.22 maintained (AC cord replacement, power transformer replacement, block capacitor replacement, bias circuit electrolytic capacitor replacement, preamplifier power socket wiring, power switch disassembly and cleaning, deteriorated resistor replacement (11 pieces), 6550A replacement)
Accessories: none
Main specifications: tubular mono power amplifier using vacuum tube 6550/5AR4/6AN8A output 60W/140W W229 × H190 × D229 mm 11.5 kg
The price has been drastically reduced. 2025/10/18 sales price 598,000 yen Maintained including main volume replacement! ALTEC811A push-pull mono vacuum tube power amplifier. Equipped with a Peerless transformer, it was developed for professional use. It creates a stubborn core and makes a good, overhanging sound. The atmosphere and warmth of the low frequencies make you feel comfortable. It is a mono amplifier where you can feel luxurious. There are paint spots, rust, and line marks (Sasaki Shota)
Maintenance information: 2025.10.18 Maintained (main volume deterioration replacement 1 x 2, AC cord 3P → 2P connector added, 1 x 2, vacuum tube socket and RCA jack re-caulking repair* Other operation checks completed. Rated output AC 100 to 117 V measured at 85 to 113 W SP: 8 ohms) 2015.2.16 maintained (common VT811A distortion large and deterioration exchange 2 x 2 block.c40 μf x 2 deterioration exchange 1 x 2 block.c120μf specification difference replacement 2 x 2 RCA jack defective replacement 1 x 2 R1/2W82K addition 1 x 2 bottom screw and back screw missing parts added 5 x 2 7305 side AC cord damage repair 4506 side AC socket 3P ⇒ 2P connector missing addition SP is set to 8 ohms. (There is a smooth noise when Volume is moved, but this is not a defect due to structural problems with this model)
Accessories: none
Main specifications: VT811A (Electoric Enterprises) x 4, 5R4GY x 8, 6W6GTB x 4, 6SN7GTB x 2, 12AX7 x 2 165W+165W W482 x H272 x D310 mm 40 kg
Maintained! First Airtight power amplifier. A versatile unit with hidden potential that sounds leisurely from floor type to bookshelf. The firm tone, which stands up well and is highly transparent, gives an exhilarating feeling in a good sense that makes you forget about tube amplifiers. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.10.19 Maintenance completed (input volume and smooth capacitor exchange, input switch disassembly, cleaning, vacuum tube pin cleaning, DC voltage and bias check output sound 8Ω 36W confirmation, interior and exterior cleaning)
Accessories: none
Main specifications: 36W+36W (8Ω) EL34/6ca7PP frequency characteristics 20Hz to 20kHz load impedance 4Ω/8Ω W368 x D231 x H293 mm 22 kg
Maintained! Lux Monopower With a push-pull operation, you can enjoy a powerful sound with plenty of room. Furthermore, due to monaural driving, it is a pair with excellent localization that fits perfectly on the left and right. The well-built 1.6 mm chassis etc. are also attractive. There are small scratches and scratches on the exterior. Serial W313210397/W31210398 (Yonejima Satoshi)
Maintenance information: 2025.9.20 Maintained (ATT decomposition polishing cleaning protective agent applied. Vacuum tube pin cleaning. Remove the resin cover and clean the steel chassis. Increase and tighten the screws. Bias adjustment. Output check. (Confirm 35W output at 8Ω load)
Accessories: No accessories
Main specifications: Vacuum tubes used (for 2 units) KT88 x 4 6CG7 x 2 12BH7A x 2 5U4GB x 2 6X4WA x 2 output 40 W x 2 power consumption 340 W frequency characteristics 5 Hz to 30 kHz SNR 90 dB or more dimensions W220 x H172 x D455 mm weight 17 kg/unit
The disposal price has been reduced (member prices are not applicable) 2025/10/2 sales price 598,000 yen Maintenance has been completed! Details are unknown, but this is a single amplifier equipped with Heinz & Kaufman's 300B. There was no overhanging feeling when it was dry in the mid to mid to high range, and I felt an elegant luster and richness in the mid to high range. If you combine it with Altech's coaxial 2-way system, you can enjoy extremely glossy vocals. As for the condition, there are many signs of use such as dullness over time and small scratches (Yamato Yuki)
Maintenance information: 2025.10.2 maintained (4 missing screws for transformer covers, 4 electrolytic capacitors, 47 μF, etc.) deterioration replacements, 3 block capacitors with 100 μF and other deterioration replacements, BIAS readjusted (error approx. 10%), HUM ADJ. readjusted, vacuum tube socket and RCA jack caulk repair
*Operation has also been checked with AC 100V (rated output measured at 8W SP: 8Ω)
*Due to the circuit design of this model, the high frequency range is slightly suppressed. (Also, the hum when not entering is slightly loud)
Accessories: none
Main specifications: W435 x H259 x D335 21.5 kg (both measured) * used vacuum tubes (300B x 2, HEINTZ & KAUFMAN) (ECC33 x 2, MULLARD)
The disposal price has been reduced. Member prices are not applicable. 2025/10/11 sales price 278,000 yen This is a tweeter system that includes a power amplifier and an electronic crossover network. You can hear sharp high frequencies with a 6L6 push-pull power amplifier equipped with a Tamura transformer and a Dynaudio tweeter. There are fine scratches on the exterior. ※The power cable is attached as an external product (Wang Zhan)
Maintenance information: 2025.10.10 Operation confirmed
Accessories: none
Main specifications: tweeter part: 3 cm dome type (made by Dinaudio) frequency characteristics 2.5 kHz to 45 kHz 8 Ω output sound pressure level: 90 dB W305 x H196 x D175 mm approx. 4 kg amplifier part: 25 W+25 W (4 · 8 · 16 Ω) vacuum tube 6 L6GC x 4 ECC83 x 2 6189 W x 2 self-bias method ultra linear connection push pull method W320 x H195 x D340 mm 17.15 kg