Technics SU-8011
A solid-state stereo integrated amplifier from Technics, featuring an LED power indicator with high response speed and a microphone mixing circuit.
Overview
The Technics SU-8011 is a stereo integrated amplifier produced by Technics. It functions as a pre-main amplifier and includes a microphone mixing circuit. The unit features a high-speed LED power indicator with a response time of 200 μsec, using five symmetrically arranged LEDs to display music signals. Its design emphasizes low distortion and low noise, inheriting concepts from the SU-8099's Concentrated Power Block architecture.
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 uses a low distortion and low noise design that inherits the concept of the SU-8099's Concentrated Power Block. It features a high-response-speed LED power indicator with a 200 μsec response time, displaying audio signals via five symmetrically arranged LEDs. The unit also includes a microphone mixing circuit.
Market
Original pricing was ¥34,800 around 1979. Current listings show asking prices such as $179.99 and $6.87, though no confirmed sale prices or common failure modes are documented.
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