The price has been reduced! 2025/5/19 sales price 59,800 yen Maintained! Introducing affordable power amplifiers. Since it comes with a selector and volume, it can also be used as a pre-main. The color is calm green. It feels a bit clear, but the sound quality is hard to get at this price. Paint peeling can be seen on the transformer cover. Serial 02120241 (Fujisawa Yukishi)
Maintenance information: 2025.5.19 Maintained (volume, SP terminals, LED replacement. Vacuum tube pin cleaning. Bias check. Output audio check)
Accessories: power cord
Main specifications: EL84 push-pull output 12W 100V vacuum tube used: 6BQ5 x 2, 12AX7 x 1, 12AU7 x 2, 5AR4 W360 x H170 x D260 mm weight 12 kg
The price has been reduced. 2025/5/28 sales price 448,000 yen Vacuum tubes, electrolytic capacitors, and oil capacitors were replaced and fully maintained! 220V step-up transformer included! A separate amplifier that is still popular even now, 70 years after its release. The thickness, luster, and tension of the sound are all emotionally composed, and perfectly express the sound of the instrument. Anyway, it's thick, chewy mid-bass, and the tasteful sound unique to vacuum tubes is impressive (Murakoshi Yoichi)
Maintenance information: 2025.5.27 maintenance completed ◎ QUAD2 (common) · vacuum tube EF86 defective and deterioration replacement 1 x 2 (2025.4.26 · 0.1 μF deterioration replacement 2 x 2 · electrolytic capacitor 25 μF deterioration replacement 1 x 2 · resistor 3W deterioration replacement 1 x 2 · chassis back screw missing added 1 x 2 ※ SP OUT: 15 Ω wiring
◎ QUAD 22 · Balance Volume Defect Replacement · Spark Killer Defect Replacement 2 pieces · AC Code Assy added with our product · Block Capacitor Deterioration → 22 μF Additional Electrolytic Capacitors 3 · Electrolytic Capacitors 25 μF Degradation Exchange 4 · Film Capacitors 0.01 μF Other Deterioration Replacement 12 · Resistance 1W and 1/2W Deterioration Replacement · 8 Resistors Only · Gang Error Reduction Measures → 1/2 W Resistance Added 4 Vacuum Tube Sockets and RCA jack caulk repair
*Operation has also been checked with AC 220V (rated output measured at 15W SP: 16Ω)
Accessories: power cable, 100V-220V step up transformer (Swallow Electric AG-1000D)
Main specifications: 13W (16Ω) with rated output AC220V [QUAD22] EF86 × 2 ECC83 × 2 input PHONO, RADIO, TAPE W267 × H89 × D148 mm 3.2 kg [QUAD2] KT66 × 4 EF86 × 2 GZ32 15W+15W W321 × H162 × D119 mm 8.2 kg/unit
The price has been reduced! 2025/5/22 sales price 448,000 yen Electrolytic capacitors and oil capacitors were replaced and fully maintained! A separate amplifier that is still popular even now, 70 years after its release. The thickness, luster, and tension of the sound are all emotionally composed, and perfectly express the sound of the instrument. The thick, chewy mid-bass sound is impressive, and the tasteful sound unique to vacuum tubes is impressive. There is a slight gap only on the right channel around the 6-7 scale for a while after the power is turned on. There is a white stain on the emblem part, and there is a feeling of use such as small scratches and dirt throughout (Murakoshi Yoichi)
Maintenance information: 2025.5.21 Maintained (QUAD2 (common), oil capacitor 0.01 μF and 3 other pairs replaced, 25 μF 2 pairs of electrolytic capacitors replaced and added. “3W1 pair of resistors” replacement. ※SP OUT: 15 ohm wiring No. 77531 vacuum tube EF86 replacement. QUAD22 · balance volume exchange, replacement of 2 spark killers, addition of missing internal negative screws · restoration to the original in several places, such as the MIC circuit, etc., replacement of 5 film capacitors 5000 pF and 10 others, replacement of 4 25μF capacitors, replacement of 12 resistors 1W and 1/2W, gang error reduction measures for Radio1 only → addition of 4 resistors 1/2W, vacuum tube socket caulking repair. *Operation has also been checked with AC 220V (rated output measured at 13W SP: 16Ω)
Accessories: step-up transformer, instruction manual (copy), power cord
Main specifications: 13W (16Ω) with rated output AC220V [QUAD22] EF86 × 2 ECC83 × 2 input PHONO, RADIO, TAPE W267 × H89 × D148 mm 3.2 kg [QUAD2] KT66 × 4 EF86 × 2 GZ32 15W+15W W321 × H162 × D119 mm 8.2 kg/unit
The disposal price has been reduced! (Member prices are not applicable) 2025/4/28 sales price 89,800 yen high-resolution vacuum tube premain amplifier. 4 6L6G output tubes and 2 2C51 input tubes and 2 2C51 tubes are used for input tubes and driver tubes. The output stage is a push-pull drive with 2 6L6G on each channel with Class AB operation, achieving a high output of 15W+15W. The sound quality is sharp, and it lets you hear a clear vacuum tube sound. There are small scratches and dullness on the exterior. (YONEJIMA Satoshi)
Maintenance information: 2025.4.27 operation confirmed
Accessories: power cord, bonnet
Main specifications: output stage circuit form/class AB, vacuum tube/6L6G x 4, 2C51 x 4, rated output 15W+15W (8Ω), 15W+15W (4Ω) input terminal/RCA terminal (stereo x 4 systems) W330 x H186 x 385 mm weight 18 kg
The price has been drastically reduced! 2025/4/27 sales price 59,800 yen This is a Chinese-made line-only tubular pre-main amplifier with a smartphone input function using Blutooth. The output is 16W, and an EL34 is used as the output tube. You can easily enjoy vacuum tube amplifiers. The exterior is dull. Serial 2021041204 (Fujisawa Yukishi)
Maintenance information: 2025.4.27 operation confirmed
Accessories: instruction manual, power cord, antenna
Main specifications: 16W+16W vacuum tube EL34 x 4, 12AU7 x 2, 12AX7 x 1 W343 x H150 x D210 mm 10.45 kg