* Currently sold is the Ishino Lab Master Series designed by Mr. Hirano, an engineer from the original Sansui. An X current circuit is adopted to achieve a maximum of 12W. This time, it's a custom model where you can listen to the STAX Year SP. There are no noticeable scratches on the exterior (Tamura Eiji)
Maintenance information: 2023.10.19 Operation confirmed (STAX output is unchecked)
Accessories: instruction manual, power cable
Main Specifications: 12W+12W (8Ω) W230 ✕ H95 ✕ D269mm Weight 3.6 kg
The deteriorated capacitors and transistors were thoroughly replaced and refreshed. Plus, a full overhaul of speaker terminals and RCA terminal replacements! The BA-2000 was created to reproduce the sound of music itself. The low-frequency sounds are amazing power amplifiers! I get the feeling that the piano is bouncing and the saxophone is approaching from below. Please experience this feeling (Murakoshi Yoichi)
Maintenance information: 2022.10.24 maintenance (transistors, electrolytic capacitors, SP terminals, rectifier diodes, fuse resistors, cement resistors, fuses, relays, LED lamps, heat dissipation sheets exchange. Volume decomposition contact cleaning. Idle current adjustment, input/output waveform check, left and right balance check, load test, comprehensive operation test, input/output waveform confirmation, load test (1kHz sine wave, 8Ω load: 110W+110W, OK), sound output test.)
Main specifications: 110W+110W W460 x H176 x D415 mm 18.3 kg
All aging parts (22 Mitsubishi transistors, 52 capacitors, etc.) were replaced, SW/VOL was completely disassembled, and the contacts were repolished, and oxidation and sulfide prevention measures were taken to prevent oxidation and sulfide, and assembled! Sansui's large output power amplifier. While feeling the volume of the overflowing low frequencies, the crisp sound quality is exactly one of the best for jazz-making. The way the drums sound is a masterpiece, and it makes JAZZ sound firmly and comfortably. If you are looking for a low range of good old Sansui, this is one I definitely recommend. The appearance is also a good category from the perspective of the year (Shota Sasaki)
Maintenance information: 2022.7.27 Maintenance completed (all board parts replacement and re-soldering, board cleaning. SW/VOL disassembly contacts are repolished, and oxidation/sulfide prevention grease is applied. Circuit adjustment, meter adjustment, input/output waveform confirmation, load test (1kHz sine wave, 8Ω load: 170W+170W, OK), sound output test)
Accessories: none
Main specifications: 170+170W (8Ω), 340W (MONO/BTL connection/8Ω) damping factor 100 W460 × H178 × D400mm 22.6kg
Maintened! Sansui's separate power amplifier with outstanding low volume and driving force. It is a masterpiece made by putting the best volume of the time. JBL's 4343 class speakers also drive with plenty of energy that cannot be heard with recent amplifiers. Appearance, there are top line scratches and wood part peeling etc. Serial 215040025 (Satoshi Yonejima)
Maintenance Information: 2021.5.15 Maintenance (Transistor replacement in flat amplifier, diode replacement. Power circuit resistor replacement. Input switch disassembly contact polishing. (DC balance, bias current adjustment)
Accessories: Instruction manual copy
Main specifications: Balanced input available, digital meter effective output 300W+300W (8Ω) 880W+880W (2Ω) Dimensions W474 × H215 × D498mm Weight 36 kg
※At the lower level of the bar graph meter, the L side swings higher. Maintained! Sansui's separate power amplifier with excellent low-frequency volume and driving power. It is a masterpiece made by putting in the highest amount of material at the time. It has a low range with a sense of scale that cannot be heard with amplifiers of recent years, and JBL's 4343 class speakers also drive with plenty of room. On the exterior, there are parts of the side panels peeling off (Hiura Katsutsugu)
Maintenance information: 2023.7.5 Maintained (switch disassembly, contact polishing. (Semi-fixed volume exchange, DC balance, idling current adjustment.)
Accessories: none
Main specifications: digital meter with balance input effective output 300W+300W (8Ω) 880W+880W (2Ω) W474 x H215 x D498 mm 36 kg
Disposal prices have been reduced! (Member discounts are not applicable) 2022/6/23 sales price 128,000 yen maintenance completed! An eye-catching power amplifier with Sansui's characteristic black and large power meter. It entertains me with the powerfulness that can be felt from the way it looks, and the supple, stretchy sound quality. The exterior has dullness, scratches, rust, etc. over time. Serial 219060089 (Takahashi Nobuyuki)
Maintenance information: 2022.6.23 Maintained (both channel volumes replaced. SP relay contact failure replacement. Protector, meter board deterioration transistor, resistor, diode replacement. Degraded transistor in power supply board, resistor exchange. Replace deteriorated transistors and capacitors in the drive board. OUTPUT selector switch cleaning. Overall adjustments.)
Accessories: none
Main specifications: left and right independent 2 power supply system diamond differential circuit effective output 110 W+110 W (8 ohms) load impedance 4 to 16 ohms W482 x H187 x D450 mm 20.3 kg
Significantly reduced price! 2021/6/27 sales price 250,000 yen maintained! Sunsui's separate power amplifier with outstanding low volume and driving power. It is a masterpiece created by putting the highest amount of goods at that time. In the low range with a sense of scale that you can't hear with recent amplifiers, JBL's 4343 speakers will drive with plenty of room. Appearance has a top plate line scratch or wood part peeling etc. Serial 656042367 (YONEJIMA Satoshi)
Maintenance information: 2021.3.3 Maintained (relay replacement and inspection adjustment work. In addition, disassembly and cleaning work of attenuator, display polarizer replacement, solder modification of main base points. (Overall adjusted)
Accessories: instruction manual
Main specifications: With balanced input, digital meter effective output 300W+300W (8Ω) 880W+880W (2Ω) Dimension W474 × H215 × D498mm Weight 36kg
The price was significantly reduced. 2021/10/23 Selling price 148,000 yen A power amplifier with a low frequency of ringing is a masterpiece. The power supply unit uses a left/right independent two-winding toroidal transformer, and a high-capacity silicon rectifier and a large capacity electrolytic capacitor constitute a powerful power supply. I get the feeling of bouncing the piano system and the saxophone approaching from below. Please experience this feeling by all means. Serial 246120957 (Hirotsugu Kondo)
Maintenance information: 2021.10.20 operation confirmed
2020.10.2 Maintained (transistor, condenser, resistor, heat dissipation sheet, semi-fixed resistor replacement. Offset, idle current adjustment. (Check input/output waveform, left and right balance check, load test, and comprehensive operation test to confirm normal operation)
2016.11.12Maintained (power circuit transistor replacement. Power amplifier circuit transistor replacement. Meter circuit transistor replacement. Meter lamp replacement Relay replacement Switch, volume cleaning. Comprehensive adjustment. Confirm that there is no wobble of the RCA pin, speaker terminal, etc. Check that the scale position and height of the Knob are correct. volume, check switch. Check input/output waveforms. (Sound out test)
Accessories: None
Main specifications: 110W+110W W460 × H176 × D415mm 18.3kg
MAINTENANCE! Rare power amp with luxury! It is the last model equipped with power MOS-FET that Sunsui was good at. Medium and high range with stable driving force and sense of fine particles unique to MOS. Combining resolution, core thickness, and listening ease, this is an extremely complete masterpiece amplifier. The appearance has scratches and paint peeling. Serial 608046793 (Satoshi Yoneshima)
Maintenance Information: 2021.6.19 Maintained (Replace both ch speaker relay. Protector transistor in the drive board, volume replacement for adjustment. Power board, drive board, major point solder modification. INPUT SELECTOR switch disassembly contact polishing. DC balance, idling current adjustment)
Accessories: Manual copy
Main specifications: 110W+110W (8Ω) 150W+150W (6Ω) Dimension W460 × H174 × D480 mm Weight 37kg
MAINTENANCE! Sunsui's separate power amplifier with outstanding low volume and driving power. It is a masterpiece created by putting the highest amount of goods at that time. In the low range with a sense of scale that you can't hear with recent amplifiers, JBL's 4343 speakers will drive with plenty of room. In appearance, there is a top plate thread and wood part peeling etc. Serial 608036314 (YONEJIMA Satoshi)
Maintenance information: 2018.5.20 Maintained (overhaul of the entire base due to degradation of transistors, capacitors and diodes in flat amplifiers)
Main specifications: With balanced input, digital meter effective output 300W+300W (8Ω) 880W+880W (2Ω) Dimension W474 × H215 × D498mm Weight 36kg
The price has been reduced! 2023/1/30 sales price 250,000 yen 2021.3.18 Maintained! A separate power amplifier from Sansui that has an excellent sense of volume and driving power in the low frequencies. It is a masterpiece created by putting in the highest quantity of materials at the time. It's a low frequency with a sense of scale that can't be heard with modern amplifiers, and JBL's 4343 class speakers can drive with plenty of room. On the exterior, there are scratches on the top plate and peeling of the wood part. Serial 216030010 (Satoshi Yonejima)
Maintenance information: 2023.1.30 operation confirmed 2021.3.18 maintained (power amplifier, flat amplifier adjustment volume replacement. Power amplifier diode replacement. Input switch disassembly contact polishing. Overall adjustments. DC drift will inevitably occur due to fluctuations in time, temperature, power supply, etc. adjusted to the best point) 2021.12.26 Maintained (transistor in flat amplifier, diode replacement. Switch and volume cleaning. (Overall adjustment)
Accessories: copy of instruction manual
Main specifications: with balanced input, digital meter effective output 300W+300W (8Ω) 880W+880W (2Ω) dimensions W474 x H215 x D498 mm weight 36 kg
Significantly below price (2021.2.28 selling price 198,000 yen) Fully overhauled in 2017. SANSUI large output power amplifier. The abundance of low frequencies and the squishy sound quality are just one of the best for jazzing. It is a masterpiece in how the drum sounds, and it sounds JAZZ firmly and comfortably. If you are looking for the low area of good old mountain water, this is a recommended one. Cereal 225090378 (Hiroshi Kondo)
Maintenance Information: 2021.2.28 Maintenanced (2 disconnection fixes for drive board pattern. Replace the heat compensation circuit the same as the late type. Offset, Idle Current, Meter Adjustment Check the input and output waveform, left and right balance check, load test, and comprehensive operation test to confirm normal operation. * Load test (1kHz, 170W+170W at 8Ω load), Sound out test)
2017.10.11 Maintenance (transistors, fuses, trimmer potentiometers, electrolytic capacitors, heat dissipation sheets, relay replacement. VR, SW cleaning. Base wash re-solder. Meter panel rebonding (Idle, meter adjustment)
Accessories: None
Main specifications: 170+170W (8Ω), 340W (MONO/BTL connection/8Ω) damping factor 100 W460 × H178 × D400mm 22.6kg
Maintained! A rare power amp with all its luxury! This is the last model equipped with a power MOS-FET that Sansui excels at. The mid to high range with stable driving power and fine particle feel unique to MOS. It is a masterpiece amplifier with an extremely high degree of perfection that combines resolution, core thickness, and ease of hearing. The exterior has hit marks, line scratches, dirt, etc. Serial 60701370B (Miura Kimiya)
Maintenance information: 2023.8.2 Maintained (both channel power amplifier board transistors and capacitors replaced. Comprehensive adjustments. *Since the amplifier uses FET as the output stage, the idling current is relatively high. (Please improve heat dissipation before use)
2022.4.13 maintenance (INPUT switch disassembly contact polishing. Speaker relay poor contact replacement. Protector Transistor Deterioration Replacement Semi-fixed volume deterioration replacement for power amplifier adjustments. Solder correction for the main parts of the electronic component board and power amplifier board. DC balance, bias current adjustment.)
Accessories: instruction manual
Main Specifications: 110W+110W (8Ω) 150W+150W (6Ω) Dimensions W460 x H174 x D480 mm Weight 37 kg
Deteriorated capacitors and transistors were thoroughly replaced in 2022/10, and a full overhaul including speaker terminals and RCA terminal replacements has been completed! The BA-2000 was created to reproduce the sound of music itself. A power amplifier with lots of low-frequency sounds. You get the feeling of a piano bouncing and a saxophone coming from below. Please experience this feeling. Line scratches, top surface rust, and dullness are scattered on the front panel corner (Kobayashi Hitoshi)
Maintenance information: 2022.10.24 Maintained (transistor, electrolytic capacitor, SP terminal, rectifier diode, fuse resistor, cement resistor, fuse, relay, LED lamp, heat dissipation sheet replacement. Volume disassembly contact cleaning. Idle current adjustment, input/output waveform confirmation, left/right balance check, load test, comprehensive operation test, input/output waveform confirmation, load test (1kHz sine wave, at 8 ohm load: 110W+110W, OK), sound output test.)
Accessories: none
Main specifications: 110W+110W W460 x H176 x D415 mm 18.3 kg
We replaced 56 deteriorated capacitors and 3 transistors and performed full maintenance. In addition, a full overhaul of speaker terminals and RCA terminal replacement! The BA-2000 was born to reproduce the sound of music itself. The sound of the low frequency is a power amplifier that is a masterpiece. I get the feeling of bouncing on the piano and the feeling that the saxophone is approaching from below. Please experience this feeling by all means. There is a light bruise in the center of the front panel top surface. (Eiji Tamura)
Maintenance information: 2022.2.11 Maintained (power transistor (successor), electrolytic capacitor, transistor, SP terminal, rectifier diode, fuse resistor, cement resistor, fuse, Relay, lamp replacement. Gain volume disassembly contact repolishing, oxidation and sulfidation prevention grease application. Input and output waveform confirmation, load test (1kHz sine wave, 8Ω load: 110W+110W, OK), sound output test)
Accessories: No accessories
Main specifications: 110W+110W W460 × H176 × D415mm 18.3kg
Maintained. A famous Sansui machine equipped with a MOS FET. The precious champagne gold design is simple yet impressive. It has sound quality with a high degree of perfection in everything, and in addition to powerful conventional sounds, female vocals are also played with a glossy tone. On the exterior, there are dents on the back corner, and the top plate is dull and has many stains (Oikawa Tetsuji)
Maintenance information: 2023.2.22 Maintained (input selector switch disassembly contact polishing, contact grease application. Speaker relay contact defect replacement. Protector transistor deterioration replacement. Solder correction at the main parts of the power amplifier board and power supply board. DC balance, idling current adjustment)
Accessories: instruction manual
Main specifications: execution output 150W+150W (6Ω) 110W+110W (8Ω) MOS-FET push-pull damping factor 200 (8Ω) W450 x H173 x D477 mm 35 kg
Fully restored, including the replacement of 46 electrolytic capacitors, 6 power transistors, and 21 transistors. Sansui's large output power amplifier. The sound quality that is crisp while feeling the volume of the overflowing low range is exactly one of the best for jazz-making. It's a masterpiece for the way the drum sounds, and it makes JAZZ sound solid and comfortable. If you are looking for a good old Sansui low range, this is one of the recommended cars. There are scratches on the top plate (Yosuke Kojima)
Maintenance Information: 2022.2.18 Maintained (Meter IC replacement. Socket disassembly cleaning and redo. Redo the solder of the socket and board. Offset, bias adjustment Check the input/output waveform, and redo meter adjustment. Running test (32h)) 2022.1.21 Maintained (6 power transistors, 46 electrolytic capacitors, 21 transistors, 9 resistors, 8 semi-fixed resistors, 6 diodes, (Relays 2, fuses 6, lamps 6, heat dissipation sheet replacement interior/exterior cleaning, re-soldering bias current after removal of old solder, offset adjustment various input/output check aging tested)
Accessories: none
Main specifications: 170+170W (8Ω), 340W (MONO/BTL connection/8Ω) Damping factor 100 W460 × H178 × D400mm 22.6kg
Maintained! A rare power amplifier with a lot of luxury! This is the last model equipped with a power MOS-FET that Sansui is good at. Mid-high range with stable driving power and fine particle feeling unique to MOS. It is an extremely complete masterpiece amplifier that combines resolution, core thickness, and ease of listening. There are scratches on the top surface and stains on the front panel (Yoichi Murakoshi)
Maintenance information: 2022.4.13 Maintenance (INPUT switch disassembly contact polishing. Speaker relay bad contact replacement. Protector transistor deterioration replacement Semi-fixed volume deterioration replacement for power amplifier adjustment. Solder correction of the main parts of the electric source board and power amplifier board. DC balance, bias current adjustment.)
Accessories: Instruction manual
Main specifications: 110W+110W (8Ω) 150W+150W (6Ω) Size W460 × H174 × D480mm Weight 37kg
Maintained! A separate power amplifier from Sansui that has an excellent sense of volume and driving power in the low frequencies. It is a masterpiece created by putting in the highest quantity of materials at the time. It's a low frequency with a sense of scale that can't be heard with amplifiers these days, and JBL's 4343 class speakers can drive with plenty of room. A feeling of use such as rust, abrasions, and dullness can be seen on the exterior and terminals (Kobayashi Hitoshi)
Maintenance information: 2023.5.24 Maintained (input changeover switch disassembly contact polishing, LEVEL switch x 4 disassembly contact polishing. Speaker relay replacement. Flat amplifier and power amplifier built-in constant current diode replacement. Semi-fixed volume replacement for power amplifier adjustment. (Overall adjustment)
Accessories: instruction manual
Main specifications: with balanced input, digital meter effective output 300W+300W (8Ω) 880W+880W (2Ω) W474 x H215 x D498 mm 36 kg