Sony's pure A grade mono amp. A supreme product with extremely elaborate design, parts, and assembly without regard to profitability. It drives woofers in large systems such as B&W very well. There is discoloration on the side wood on one side, and there are many scratches on the front panel, top plate, etc. (Oikawa Tetsuji)
Maintenance information: 2025.9.23 Operation confirmed
Accessories: none
Main Specifications: Mono Pure Class A Amplifier 100W (8Ω) 200W (4Ω) 400W (2Ω) 550W (1Ω) W470 x H190 x D455mm 47.5 Kg
Sony's pure A grade mono amp. A supreme product with extremely elaborate design, parts, and assembly without regard to profitability. It drives woofers in large systems such as B&W very well. There is overall dullness, small scratches, and a dent on the front panel on one side (Oikawa Tetsuji)
Maintenance information: 2025.9.23 Operation confirmed
Accessories: none
Main Specifications: Mono Pure Class A Amplifier 100W (8Ω) 200W (4Ω) 400W (2Ω) 550W (1Ω) W470 x H190 x D455mm 47.5 Kg
※The remote control is out of stock. SONY's best control amplifier! Performance was pursued as a preamplifier in the digital audio era, and the actual transmission S/N was thoroughly enhanced. Both in terms of tone and construction, the quality is solid and the goodness of the thing shines through. The combination with the company's TA-NR1 and NR10 power amplifiers is an eternal dream. As for the exterior, there are multiple noticeable scratches on the top plate (Mizusaki Ryo)
Maintenance Information: 2024.12.12 Operation confirmed
Accessories: connection cord
Main specifications: input/Phono (MM, MC), balanced (CD, LINE), unbalanced (CD, LINE 1 to 4, TAPE1 to 2), output/balanced (NORM, INVT), unbalanced (NORM, INVT) size W470 x H135 x D420 mm (main body) W260 x H135 x D395 mm (power supply unit) weight 19.5 kg (main unit) 12.5 kg (power supply unit) )
Sony's pure A grade mono amp. A supreme product with extremely elaborate design, parts, and assembly without regard to profitability. It drives woofers in large systems such as B&W very well. The top plate, side wood, are scratched, and the corners are rubbed (Oikawa Tetsuji)
Maintenance information: 2024.11.26 Retighten the ground terminal, screw lock, and reassemble, sound output test OK
Accessories: copy of instruction manual
Main Specifications: Mono Pure Class A Amplifier 100W (8Ω) 200W (4Ω) 400W (2Ω) 550W (1Ω) W470 x H190 x D455mm 47.5 Kg
Sony's pure A grade mono amp. A supreme product with extremely elaborate design, parts, and assembly without regard to profitability. It drives woofers in large systems such as B&W very well. There is a scratch on the side wood and back angle (Oikawa Tetsuji)
Maintenance information: 2024.11.25 Operation confirmed
Accessories: copy of instruction manual
Main Specifications: Mono Pure Class A Amplifier 100W (8Ω) 200W (4Ω) 400W (2Ω) 550W (1Ω) W470 x H190 x D455mm 47.5 Kg
Maintained! Sony's pure A grade mono amp. A supreme product with extremely elaborate design, parts, and assembly without regard to profitability. It drives woofers in large systems such as B&W very well. There are small scratches on the exterior, top surface, rust on the terminals, and several stains on the back panel on one side. Serial 200576 200578 (Murakoshi Yoichi)
Maintenance information: 2023.5.30 Maintained (internal cleaning. Input selector, contact cleaning, mirror polishing, anti-oxidation treatment, base bracket caulking correction. All voltage amplification boards are re-soldered, copper plate power supply bars, and earth bars are re-soldered. Output relays (3 connected in parallel) all contact redox processing. Tighten all power supply screws. DC balance reset, idle current reset, heat run test completed. Physical tests (maximum output: 120W or more (@8Ω 20-20kHz 0.3%), rated distortion ratio: 0.00,2% @1KHz 0.005% @20 to 20kHz, S/N: 95dB or more, residual noise 100μV or less @Aネットワーク, 220μV or less @flat mode)
Accessories: instruction manual (copy)
Main Specifications: Mono Pure Class A Amplifier 100W (8Ω) 200W (4Ω) 400W (2Ω) 550W (1Ω) W470 x H190 x D455mm 47.5 Kg
Sony's pure A grade mono amp. It is famous for being unprofitable even if it is made, and it is a supreme item with very elaborate parts and assembly. It drives woofers in large systems such as B&W very well. The dynamic yet glossy, mellow sound is characteristic, and it almost makes you feel drawn into the world that music creates. There are abrasions and bumps on the top plate and sides (Kojima Yosuke)
Maintenance information: 2024.3.1 operation confirmed
Accessories: instruction manual
Main Specifications: Mono Pure Class A Amplifier 100W (8Ω) 200W (4Ω) 400W (2Ω) 550W (1Ω) W470 x H190 x D455mm 47.5 Kg
It's been maintained! Sony's pure Class A mono amplifier, reference model. It is famous for saying that it is not profitable to make it, and it is a supreme item that is very elaborate on parts and assembly. It drives woofers for large systems such as B&W (Yoichi Murakoshi)
Maintenance Information:2022.6.9 Maintenance (large capacity electrolytic capacitor, output relay RCA jack replacement, solder correction, input switch check screw tightening, bias and offset (Check, output sound check, interior and exterior cleaning.)
Accessories: instruction manual (copy)
Main specifications: Mono pure A class amplifier 100W (8Ω) 200W (4Ω) 400W (2Ω) 550W (1Ω) W470 × H190 × D455mm 47.5kg
※ MM load pin is not included. SONY's pinnacle control amplifier! Performance is pursued as a preamplifier in the digital audio era, and the actual transmission S/N is thoroughly enhanced. The goodness of things shines with a solid and solid tone as well as construction. The combination with the company's power amplifiers TA-NR1 and NR10 is an eternal longing. There are light dullness and small scratches (Yoichi Murakoshi)
Maintenance information: 2021.12.14 sound output confirmed
Accessories: remote control, power cord
Main specifications: Input/Phono (MM, MC), Balanced (CD, LINE), Unbalanced (CD, TUNER, LINE1-4, TAPE1-2), Output/Balanced ( NORM, INVT), Unbalanced (NORM, INVT) size W470 × H135 × D420mm (body) W260 × H135 × D395mm (power supply part) Weight 19.5kg (body) ) 12.5kg (power supply part)
Disposal price down. (Member discount not applicable) 2021.3.5 Sales price 250,000 yen*1 unit only. AC plug has been replaced with Matsushita WF5018 (Hospital Grade). Sony's pure A mono amplifier, reference model It is famous for saying that it can not be profitable even if you make it, the supreme item that was very involved in parts and assembly. It will drive woofers of large systems such as B&W and so on. Dent in the center of the front panel, top plate, abrasions on the back (Yoichi Murakoshi)
Maintenance information: 2021.2.28 Internal inspection by repairman (internal inspection cleaning, operation check)
Accessories: Instruction manual copy
Main Specifications: Mono pure A class amplifier 100W (8Ω) 200W (4Ω) 400W (2Ω) 550W (1Ω) W470 × H190 × D455mm 47.5Kg