LUXMAN SQ301
¥ 69,000 (released in 1967)
Commentary
A pre-main amplifier developed as a successor to SQ77T.
As for the power transistor, B170008 manufactured by BENDIX Co. in the US, same as SQ77T is used.
The driver stage uses silicon transistors manufactured by RCA in the United States.
A quasi complimentary service SEPP-OTL circuit is used for the circuit system.
The Phono2 terminal has an input impedance switching function.
Equipped with a damping factor switching function, the damping factor can be switched to 3 levels.
It is equipped with a protection circuit using SCR that operates when the speaker terminal and the cord are short-circuited.
Equipped with a filter circuit for the 3D system, you can enjoy the 3D system by adding a power amplifier for low band and a filter for low band.
A socket for step-up transformer is provided on the rear, and 6400 series step-up transformer can be used.
6422S is recommended as the standard.
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Model Rating
| Type | Pre-main amplifier | ||||||||||||
| Power Amplifier Unit | |||||||||||||
| Continuous output | 35W + 35W (16 Ω) 50W + 50W (8 Ω) |
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| Music power | 60W + 60W (8 Ω) | ||||||||||||
| Distortion factor | 0.1% or Less (30W/16 Ω, 40W/8 Ω) | ||||||||||||
| Frequency characteristic | 10 Hz to 50 kHz -1dB | ||||||||||||
| Input impedance | 30k Ω or more | ||||||||||||
| Input sensitivity | 730 mv (20W/16 Ω) | ||||||||||||
| Damping factor | 80, 10, 2, Variable (16 Ω, 1 kHz) | ||||||||||||
| Residual noise | 1 mV or less | ||||||||||||
| Preamplifier Section | |||||||||||||
| Frequency characteristic | 20 Hz to 20 kHz -1dB No. | ||||||||||||
| Distortion factor | Within 0.1% (1 V, 1 kHz) | ||||||||||||
| Output voltage | Pre out:730mV Rec out:70mV Reconnector : 30 mV |
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| Output impedance | Pre out : 100 Ω or less Rec out : 1k Ω Re-connector : 75k Ω |
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| Input Sensitivity (Output 750 mv) | Tape(9.5cm):1.8mV Tape(19cm):2mV Phono1, 2 : 2 mV Aux1:110mV Aux2:750mV Tape monitor:200mV Re-connector : 200 mv |
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| Input impedance | Tape (9.5 cm) : 100k Ω Tape (19 cm) : 100k Ω Phono1 : 50k Ω Phono2 : 30k Ω, 50k Ω, 100k Ω Aux1 : 50k Ω Aux2 : 100k Ω Tape monitor : 100k Ω Re-connector : 100k Ω |
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| Signal-to-noise ratio | Tape head : 60 dB or more Phono : 60 dB or more Aux : 75 dB or more |
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| Equalizer | Tape head : NARTB (9.5 cm, 19 cm) Phono:RIAA |
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| Tone control | LUX System NF Type Treble : 2 kHz, 4 kHz, Defeat Bass : 200 Hz, 400 Hz, Defeat |
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| Filter | High Cut : 5 kHz, 9 kHz, 6dB/oct. Low-cut : 120 Hz, 6dB/oct. |
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| Low boost | 120 Hz, 6dB/oct. | ||||||||||||
| Filter for 3D (High Pass / Low Pass Min) | Cutoff frequency : 110 Hz Cutoff characteristics : 12dB/oct. Output impedance : 100 Ω |
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| <General> | |||||||||||||
| Semiconductor used |
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| Power consumption | No signal : 35W Maximum output : 200W |
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| External dimensions | Width 476x Height 180x Depth 275 mm | ||||||||||||
| Weight | 13.6kg | ||||||||||||
| Remarks | Booster transformer
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