Technics SU-A6
¥ 100,000 (around 1980)
Commentary
Based on the technology used in the SU-A2 and SU-A4, this control amplifier offers a high level of saturation of performance and functions.
All stages are class A operation to eliminate switching distortion and crossover distortion.
In addition, all basic circuits are ICL, and a straight DC amplifier is realized in which the Phono input passes through only one coupling capacitor and the high-level input does not pass through any capacitor.
The equalizer amplifier uses a low-noise dual-FET parallel configuration, and MC cartridges can be directly connected.
In addition, gain switching is available for MM cartridges.
Low output impedance design with SEPP buffer amplifier.
As a result, even if a power amplifier with a low input impedance is connected, or even if several power amplifiers are connected, waveform degradation caused by such power amplifiers will not occur.
Equipped with a unique shelving tone.
This shelving tone can be adjusted in four levels : Super Base, Super Treble, Bass, and Treble. It enables effective compensation for actual use without overcompensation.
Equipped with an audio muting switch, subsonic filter and high filter.
Independent selectors for input and rec out allow simultaneous recording of the playback source and other sources.
All input / output terminals are gold-plated.
Model Rating
Type | Stereo control amplifier | ||||||
Input Sensitivity / Impedance |
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Total harmonic distortion factor |
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Signal-to-noise ratio | Phono MC (250 μ V) : 74 dB Phono MM(2.5mV):88dB Tuner, AUX, Tape (straight DC) : 106 dB |
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Frequency characteristic |
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Maximum Allowable Input (1 kHz, RMS) | MC (250 μ V) : 16 mV MM(2.5mV):160mV |
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Shelving tone change characteristic | Super bass (20 Hz, + 12dB/oct) : 0 dB to + 10 dB Bass (50 Hz) : + / - 5 dB Treble (20 kHz) : ± 5 dB Super treble (50 kHz) : ± 10 dB |
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Shelving tone turnover frequency | Super bass (+ 12dB/oct) : 75 Hz, 150 Hz bass:500Hz treble:2kHz super treble:8kHz |
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Filter | Subsonic : 20 Hz, -12dB/oct. High : 7 kHz, -6dB/oct. |
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Loudness control (Volume -30dB) | 50Hz:+7dB | ||||||
Output Level / Impedance |
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Power supply voltage | 100 VAC, 50Hz/60Hz | ||||||
AC outlet | Power switch interlock maximum allowable power : 600W | ||||||
Power consumption | 6W | ||||||
External dimensions | Width 430x Height 97x Depth 360 mm | ||||||
Weight | 5.5kg |