LUXMAN SQ11
¥ 32,000 (released in June 1963)
Commentary
Pre-main amplifier with all-transistor configuration.
An all-transistor configuration has been adopted to realize an OTL circuit that does not use an output transformer, which is difficult with vacuum tubes.
The SQ11 uses a special feedback circuit that automatically controls the excess current to prevent the transistor from being destroyed.
In addition, a heat sink with a high heat radiation effect and a ventilation hole area are sufficient to cope with heat.
It is equipped with functions such as a rumble filter, a scratch filter, a loudness control and a phase switching function.
Equipped with a universal terminal that can be used when the main amplifier and preamp are used independently or when using a reverb amplifier, etc.
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Model Rating
| Type | Pre-main amplifier | ||
| Output (1 kHz) | 20W + 20W (4 Ω) 16W + 16W (8 Ω) 10W + 10W (16 Ω) |
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| Output impedance | 4 Ω ~ 16 Ω | ||
| Input Sensitivity (W each output, 1 kHz, 16 Ω load) | Tape, MAG : 5mV/50k Ω Tuner : 500mV/1M Ω X' tal : 250mV/500k Ω |
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| Signal-to-noise ratio | Each input : 56 dB or more (Tone-flat, Volume max) | ||
| Distortion Factor (1 kHz) | 0.8% (16W + 16W, 8 Ω) 0.9% (10W + 10W, 16 Ω) |
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| Tone control | NF Type Bass : ± 10 dB (100 Hz) Treble : + 8 dB ~ -10dB (10 kHz) |
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| Accessory function | Recording output terminal Rumble filter Scratch filter Loudness control Phase switching function Universal terminal for connection such as a reverb amplifier |
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| Semiconductor used |
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| Pwer | 100 VAC, 50Hz/60Hz | ||
| Power consumption | 9W (no signal) 40W (max) |
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| External dimensions | Width 316x Height 83x Depth 208 mm Height including leg 103 mm |
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| Weight | 5.5kg |