Custom-made! A fully balanced preamplifier that uses 4 x 300B, is a rare item. Equipped with transformer type contact attenuator, no phono, line only. The freshness and goodness of sound is attractive. There is a slight increase in volume. The appearance is not particularly big noticeable scratches* Because it uses 4 300B, it generates heat, so please make enough space for heat dissipation and use it (Tetsuji Oikawa)
Maintenance information: 2021.9.26 operation confirmed
Accessories: instruction manual, power supply, power cable, connection cable
Main specifications: Used vacuum tubes 300B × 4, 5687 × 2 main body W420 × H180 × D400 mm 16kg Power supply part W230 × H193 × D297mm 10.3 kg (actual measurement)
This is a simplified kit model of ACOUSTIC MASTERPIECE. It is a two-stage chassis structure that separates the power supply part and the amplifier part, but it is designed to prioritize sound quality with the shortest wiring due to compactness. A modern vacuum tube sound where you can feel the vividness, thickness, and dynamism of the sound. It is a product with high cost performance unique to kit. The appearance has line scratches and rubbing scratches. Serial 31662 JP (Satoshi Yoneshima)
Maintenance information: 2022.1.23 operation confirmed
Accessories: schematic, power cord, original box
Main specifications: Frequency characteristics 5Hz to 100Hz Input sensitivity 110mV S/N90dB Output voltage Rating 2V/max 15V Output impedance 200Ω W300×H135×D200mm
It is a simple kit model of ACOUSUCE MASTERPIECE It is a two-stage chassis structure that separates the power supply part and the amplifier part, but the sound quality is prioritized with the shortest wiring due to compactness. Take your hat off for modern tube sound that gives you the roughness, thickness, and dynamism of a sound that is comparable to a high-end amplifier. It is a very cost-effective product unique to kit. The appearance has scratches on the top plate and there is a feeling of use. Serial 20158 (Nobuyuki Takahashi)
Maintenance information: 2021.11.28 Operation confirmed
Accessories: None
Main specifications: Output voltage rating 2V/max 15V Output impedance 200Ω W300 × H135×D200mm Frequency characteristics 5Hz ~ 100Hz Input sensitivity 110mV・S/n90dB Use Vacuum tubes
The price has been drastically reduced. 2023/8/30 sales price 138,000 yen maintenance completed! A rare Acrosound tube control amplifier. The deep, deep, and muscular sound quality is just like a 50's US tune. If you look inside, the large selenium and careful mono structure are quite eye-catching. Jazz is particularly cool! There is a feeling of use due to dullness, scratches, etc. on the exterior. * Immediately after the power is turned on, noise may occur during operation of switches, volume, etc. (Hitoshi Kobayashi)
Maintenance information: 2023.8.29 Operation confirmed
2023.1.17 Maintenance completed (vacuum tube socket replacement, AC cord replacement, AC outlet terminal blocked in one place, rear panel FM MULT volume replacement, tone, main volume contact cleaning)
Accessories: none
Main specifications: Vacuum tube used 7199 x 2, 7247 x 2 input phono x 2 (78, LP, RIAA equalizer switching), AM, FM, AUX, tape, microphone input W350 x H113 x D170 mm, approx. 3.5 kg
Maintained! Rare Acrosound tube control amplifier. The deep, deep, and muscular sound quality is exactly like a 50s US tune. If you look inside, the large selenium and careful mono structure are quite eye-catching. JAZZ is particularly cool! There is a feeling of use such as dullness and scratches on the exterior. *Noise may occur when the switch, volume, etc. are operated immediately after the power is turned on (Kobayashi Hitoshi)
Maintenance information: 2023.1.17 Maintained (vacuum tube socket replacement, AC cord replacement, AC outlet terminal blocked at one place, rear panel FM MULT volume replacement, tone, main volume contact cleaning)
Accessories: none
Main specifications: Vacuum tube used: 7199 x 2, 7247 x 2 input phono x 2 (78, LP, RIAA with equalizer switch), AM, FM, AUX, tape, microphone input W350 x H113 x D170 mm 3.5 kg (actual measurement)
Disposal prices have been reduced! (Member discounts do not apply) 2023/5/19 Sales price 128,000 yen Maintenance completed! Rare Acrosound tube control amplifier. The deep, deep, and muscular sound quality is exactly like a 50s US tune. If you look inside, the large selenium and careful mono structure are quite eye-catching. JAZZ is particularly cool! There is a feeling of use such as dullness and scratches on the exterior. *Noise may occur when operating the switch, volume, etc. immediately after the power is turned on (Asaine Tomonori)
Maintenance information: 2023.5.19 operation confirmed 2023.1.17 maintained (vacuum tube socket replacement, AC cord replacement, AC outlet terminal blocked at one place, rear panel FM MULT volume replacement, tone, main volume contact cleaning)
Accessories: none
Main specifications: Vacuum tube used: 7199 x 2, 7247 x 2 input phono x 2 (78, LP, RIAA with equalizer switch), AM, FM, AUX, tape, microphone input W350 x H113 x D170 mm 3.5 kg (actual measurement)
It is a preamplifier dedicated to vacuum tube lines with strict sound quality. Based on the combination of high performance power amplifiers of each company, we aim to build an attractive separate system. In order to not affect sound quality, microprocessor circuitry works only during operation, and is usually not working at all. This is a Zephane regular import of Aesthetix line stage preamp calypso. Use 2 channels as well as multi-channel systems such as home theaters, or use phono stage amplifiers to enjoy analog players. Appearance is scratched on a part of the top plate. (Sasaki Shota)
Maintenance information: 2012.7.14 Manufacturer maintenance (fix for each connector contact defect, vacuum tube relocation, inspection adjustment of each part)
Accessories: Remote control, explanation, power cable
Main Specifications: 6 inputs Fully balanced circuit with RCA input and XLR input Sphere: 12AX7LP, 6DJ8 W455 × H108 × D460mm 17.5kg
The price has been reduced. 2024/3/6 Dutch Ah stereo control amplifier with sales price 89,800 yen. Although it is a tube preamp, it has a unique configuration typical of the company, equipped with 2 power transformers. The good sense of sense shines through the use of rectifier tubes and designs that are aligned with power amplifiers. You can enjoy the sound quality unique to a spacious, warm vacuum tube. The exterior is dull. Serial 05100563 (Yonejima Satoshi)
Maintenance information: 2024.3.6 operation confirmed
Accessories: power cord
Main specifications: 4 input lines, 1 output TAPE system, 12 AX7 x 2 vacuum tube using PRE OUT x 2 system, 12 AU7 x 2, 5 AR4 x 1 W280 x H190 x D395 mm 13 kg
The price has been reduced! 2022/8/26 Selling price 99,800 yen A stereo control amplifier from Ah in the Netherlands. Although it is a tube preamplifier, it has a unique configuration typical of the company, equipped with two power transformers. The good sense of taste shines, such as the adoption of a rectifier tube and a design that aligns the design with the power amplifier. The appearance is dull, and there are small scratches. Serial 06090073 (Satoshi Yonejima)
Maintenance info: 2022.8.26 Operation confirmed
Accessories: instruction manual, power cord
Main specifications: 4 input lines, output TAPE × 1 system, PRE OUT × 2 system used vacuum tube 12AX7 × 2, 12AU7 × 2, 5AR4 × 1 W280 × H190 × D395mm 13kg
A stereo control amplifier from the Netherlands · Ah. Although it is a tube preamplifier, it has a unique configuration typical of the company, equipped with two power transformers. Good sense, such as the adoption of a rectifier tube and a design that aligns the design with the power amplifier, shines (Yoichi Murakoshi)
Maintenance information: 2022.3.30 sound output confirmed
Accessories: Instruction manual (copy), power cord
Main specifications: Input line 4 systems, output TAPE × 1 system, PRE OUT × 2 systems used vacuum tube 12AX7 × 2, 12AU7 × 2, 5AR4 × 1 W280 × H190 × D395mm 13kg
Air Tight line dedicated tube ball preamp that feels particular attention in the thin body. The distinctive sound of the delicacy and transparency of the sound image is attractive. Small but good-looking volume and heavy, the inside is finished by hand wiring and the goodness of building comes out. Cereal 17107 (Hiroshi Kondo)
Maintenance Information: 2021.5.16 Operation Check
Accessories: Instruction manual and power cord
Main Specifications: Vacuum tube 12AX7 × 1 /12AU7 × 2 polypropylene condenser Adopts 99.9999% pure copper wire and BELDEN wiring material W430 × H85 × D335mm 8kg