
ITT SA720 ( Pioneer SM83 ) Tube Integrated Amplifier * FULLY RESTORED ! * 28W RMS * 1969
The Pioneer SM-83 is a vintage tube integrated amplifier manufactured between 1965 and 1969, sought after by collectors for its classic, warm tube sound. When restored, it is praised for its rich, dynamic musical performance and high-quality Japanese build. These amplifiers are no longer in production and are available only on the secondhand market, typically requiring a full restoration to ensure safe and optimal functionality.
- Power output: 28 watts per channel into 8Ω (stereo).
- Dynamic power: 40W per channel into 8Ω, and 36W into 4Ω.
- Tube complement: It uses a total of nine tubes, including four 7189A power tubes, two 6AN8 tubes, and three 12AX7 preamp tubes.
- Transformers: Equipped with high-quality Tamura output transformers, which are well-regarded and contribute to the amplifier's sound quality.
- Frequency response: 5Hz to 100kHz.
- Total harmonic distortion (THD): 1% at rated output.
- Dimensions: 400 x 150 x 345 mm (W x H x D).
- Weight: 13 kg (28.68 lbs).
The Pioneer SM-83 is a vintage tube integrated amplifier manufactured between 1965 and 1969, sought after by collectors for its classic, warm tube sound. When restored, it is praised for its rich, dynamic musical performance and high-quality Japanese build. These amplifiers are no longer in production and are available only on the secondhand market, typically requiring a full restoration to ensure safe and optimal functionality.
- Power output: 28 watts per channel into 8Ω (stereo).
- Dynamic power: 40W per channel into 8Ω, and 36W into 4Ω.
- Tube complement: It uses a total of nine tubes, including four 7189A power tubes, two 6AN8 tubes, and three 12AX7 preamp tubes.
- Transformers: Equipped with high-quality Tamura output transformers, which are well-regarded and contribute to the amplifier's sound quality.
- Frequency response: 5Hz to 100kHz.
- Total harmonic distortion (THD): 1% at rated output.
- Dimensions: 400 x 150 x 345 mm (W x H x D).
- Weight: 13 kg (28.68 lbs).
Original: $700.00
-65%$700.00
$245.00Description
The Pioneer SM-83 is a vintage tube integrated amplifier manufactured between 1965 and 1969, sought after by collectors for its classic, warm tube sound. When restored, it is praised for its rich, dynamic musical performance and high-quality Japanese build. These amplifiers are no longer in production and are available only on the secondhand market, typically requiring a full restoration to ensure safe and optimal functionality.
- Power output: 28 watts per channel into 8Ω (stereo).
- Dynamic power: 40W per channel into 8Ω, and 36W into 4Ω.
- Tube complement: It uses a total of nine tubes, including four 7189A power tubes, two 6AN8 tubes, and three 12AX7 preamp tubes.
- Transformers: Equipped with high-quality Tamura output transformers, which are well-regarded and contribute to the amplifier's sound quality.
- Frequency response: 5Hz to 100kHz.
- Total harmonic distortion (THD): 1% at rated output.
- Dimensions: 400 x 150 x 345 mm (W x H x D).
- Weight: 13 kg (28.68 lbs).






















