* Because it is cheap, it will be handed over as it is. The ideal power amplifier for the company's 101MM speakers. It will be a model equipped with a dedicated power supply for the Technics CD player SL-XP7. A high output monaural amplifier can also be made by a changeover switch. In addition, it has a DC 6V power output on the back, so it can be used as a power source for decks dedicated to batteries such as the Walkman at that time. The appearance has aging dullness and small scratches. Serial 63F010156 (Satoshi Yonejima)
Maintenance info: 2022.2.10 operation confirmed
Accessories: Instruction manual
Main specifications: Output: 20W+20W (4Ω) 40W (4Ω, MONO) Input: RCA (for 5V high level/150mV for low level, 1 system each) Speaker output: 1 system (MONO output switchable) DV6V Power output terminal equipped (MAX 200mA) W218 × H6 × D137mm Weight 2.6kg
The price has been reduced. 2022 9/19 sales price 12,000 yen*Currently sold. A D-class power amplifier that uses the Bluetooth 5.0 standard. A small amplifier full of playfulness (Murakoshi Yoichi) that does not require driver installation (Windows 7 and 8 are not compatible), subwoofer output, equalizer high and low frequency adjustment function, remote control operation, etc.
Maintenance information: 2022.9.17 sound confirmed
Accessories: remote control, USB cable, power cord, original box
Main specifications: 80W+80W input analog, USB (cable included), Bluetooth output speaker, SW OUT W70 x H70 x D188 mm 800g
※ Current sale item. SONY commercial power amplifier. It is a neutral and straightforward sound that looks like a professional use device. The inputs are equipped with XLR and RCA for convenience.
Serial 201097 (Yuki Yamato)
Maintenance information: 2021.7.31 working confirmed
Main specifications: 50W+50W (8Ω) 70W+70W (4Ω) mono 150W (when connected to 8Ω · BTL) W482 × H44 × D350mm about 8kg
*Currently sold for business use. Co-fusion's professional power amplifier. The sound is straightforward and straight forward, so it's easy to use regardless of genre. The input is XLR only, and the output is speakon only. The VOL has been rubbed slightly, and it takes a few minutes for the protection lamp to turn off when the power is off. There is a feeling of use such as small scratches. Serial E25000609050123 (Takasaki Atsushi)
Maintenance information: 2023.7.5 operation confirmed
Accessories: none
Main specifications: 270 W x 270 W (8 ohms), 400 W x 400 W (4 ohms) bridge connection possible approx. W480 x D470 x H95 mm approx. 20 kg
Comes with original box! This is a small and thin digital main amplifier. The MAX9744 is used as the power amplifier IC, and although it is small, it has a 20W stereo output. It comes with an electronic volume and a headphone output, so you can enjoy it as a headphone amplifier. The exterior is dull, etc., and there is a feeling of use (Sasaki Shota)
Maintenance information: 2023.2.12 operation confirmed
Accessories: original box, instructions, connection cable
Main specifications: 20W+20W (at 4Ω) headphone output 110mW+110mW (32Ω) W120 x H35 x D107 mm (not including protrusions) 414 g
*Currently sold. A high power amplifier developed for use in studio applications. The sound quality is tight and sharp like professional use. A bridge connection is also possible. Serial S1300640217 (Mizushima Itsuro)
Maintenance Information: 2023.7.27 Operation confirmed
Accessories: instruction manual, power cable
Main specifications: 230W+230W (4Ω) 160W+160W (8Ω) 500W (BTL/8Ω) input terminal XLR x 2, TRS phone x 2, RCA pin x 2 W483 x H102 x D258 mm 8.4 kg
※It is inexpensive because the appearance is poor. A multipurpose Sony power amplifier. It can be used from 2 channels up to 4 channels by BTL connection. A sound with good visibility without the habit of Sony. There is also a solid sense of power when using 2 channels, and it is an amplifier with a wide range of defense. The appearance has veneer peeling, rolling, rust floats and scratches. (Kimiya Miura)
Maintenance Information: 2022.5.25 Operation confirmed
Accessories: copy of instruction manual
Main specifications: 70W × 4CH (6Ω) 150Wx2CH (BTL 6Ω) W470 × H135 × D370mm 10kg
※There is no operation problem, but since it is cheap, it is currently sold. Although it is small, it has a 50W+50W stereo output, so you can use it anywhere. The exterior has small scratches, dullness, etc. (Mizusaki Ryo)
Maintenance information: 2023.8.4 sound output confirmed
Accessories: original box
Main specifications: 50W+50W (8Ω) W220 x H90 x D300 mm Weight 4.3 kg (actual measurement)
*There is no problem with operation, but since it is inexpensive, it is currently sold. Ramsa professional power amplifiers. It's a lot of straight, unobtrusive sounds. It is a model that achieves both power saving and high power. There are many scratches on the top plate (Fujisawa Yukishi)
Maintenance information: 2023.6.8 operation confirmed
Accessories: none
Main specifications: 200W+200W (4Ω) 150W+150W (8Ω) W482 x H90 x D482 mm
*There is no problem with operation, but since it is inexpensive, it is currently sold. Comes with original box It is a power amplifier with a Yamaha-like design compatible with 2ch/4ch (surround processor required). It can also be used as a simple multi-purpose amplifier for surround speakers. There are small scratches and dullness on the exterior. Serial P016498TV (Satoshi Yonejima)
Maintenance Information: 2023.6.10 Maintained
Accessories: original instruction manual box
Main specifications: 43W+43W (6Ω) with 2 amps 22W+22W+22W+22W+22W+22W (6Ω) W435 x H93 x D287 mm Weight 5.0 kg
* Currently sold products. SONY commercial power amplifier It has a neutral and straightforward sound typical of professional use equipment. The input is equipped with XLR and RCA, which is convenient (Fujisawa Yukishi)
Accessories: None
Main specifications: 50W+50W (8Ω) 70W+70W (4Ω) mono 150W (8Ω/BTL connection) W482 × H44 × D350mm about 8kg
* Currently sold item. A power amplifier that can switch between 2ch/4ch. It also makes jazz and rock sound with a clear sound. Also suitable for additional power amplifiers for AV. There is a feeling of use such as abrasions and dullness. Serial 102905 (Takasaki Atsushi)
Maintenance information: 2022.7.3 operation confirmed
Accessories: Instruction manual
Main specifications: W435 × H93 × D265mm 5.3 kg
* Since it is a commercial device, there is no problem with the current delivery operation, but it is inexpensive because there is no guarantee. The sound quality is clear, fresh, and light, and the sound is firm and crisp. A sound development that perfectly fits the image that comes to mind when it comes to YAMAHA's commercial use (Sasaki Shota)
Maintenance information: 2022.9.30 sound confirmed
Accessories: nothing
Main Specifications: Stereo Output: 105W+105W (4Ω) 100W+100W (8Ω) Bridge Output: 210W (8Ω) Frequency Characteristics: 20Hz to 50kHz Damping Factor: 200 Inputs Terminal: XLR, Phone, Output Terminal: 5 WAY Binding Post Power Consumption: 150W Dimensions: W480 x H880 x D456 (mm) Weight: 12 kg
*There is no problem with operation, but since it is inexpensive, it is currently sold. Power amplifiers for desktops. Although it is small, the 24W output ensures sufficient power for playback at close range. It reproduces music with a high quality that is necessary and sufficient for TV and computer peripherals. Dull and dirty (Oikawa Tetsuji)
Maintenance information: 2023.6.15 operation confirmed
Accessories: power cable, stand
Main specifications: 24W ✕ 24W (4Ω) playback frequency band 20 to 20 kHz H150 x W106 x W32 mm weight 420 g