Technics SU-8011
A solid-state stereo integrated amplifier from Technics, with a fast-responding LED power indicator and a microphone mixing circuit.
Overview
The Technics SU-8011 is a stereo integrated amplifier, a pre-main design with a microphone mixing circuit built in. The LED power indicator is fast, with a response time of 200 μsec. It uses five symmetrically arranged LEDs to display music signals. The design aims for low distortion and low noise, and it inherits the concept of the SU-8099's Concentrated Power Block.
Specifications
| Power output | 25 watts per channel into 8Ω (stereo) |
| Effective output (both channel drive) | 25W + 25W (8 ohm, 40 Hz to 20 kHz) |
| Output Bandwidth (Both channel drive, 8 Ω) | 10 Hz to 50 kHz -3dB |
| Total harmonic distortion factor | 0.1% |
| Frequency characteristic | Phono : RIAA standard curve ± 1.0 dB |
| Frequency characteristic | Tuner, Aux : 10 Hz to 80 kHz -3dB |
| Signal-to-noise ratio (IHF-A) | Phono: 80dB |
| Signal-to-noise ratio (IHF-A) | Tuner, Aux, Tape : 97 dB |
| Tone control | Bass : ± 10 dB (50 Hz) |
| Tone control | Treble : ± 10 dB (20 kHz) |
| Power | 100 VAC, 50Hz/60Hz |
| Power consumption | 55W |
| External dimensions | Width 430x Height 97x Depth 240 mm |
| Weight | 5.0kg |
Design
The SU-8011 is a low distortion, low noise design built on the SU-8099's Concentrated Power Block concept. Its LED power indicator has a 200 μsec response time and shows audio signals on five symmetrically arranged LEDs. The microphone mixing circuit is also included.
Market
Original price was ¥34,800 around 1979. Current listings show asking prices such as $179.99 and $6.87. No confirmed sale prices or common failure modes are documented.
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