LUXMAN L-309
¥ 129,000 (Released in September 1973)
¥ 148,000 (around 1974)
Commentary
Transistor pre-main amplifier developed as the integration of pre-main type.
The drive stage of class A operation is completely independent from the output stage of class B operation to achieve constant voltage.
It is equipped with circuits such as linear equalizer, high filter, low filter and low booster.
Model Rating
| Type | Pre-main amplifier |
| Continuous effective output | 75W + 75W (8 Ω, both channel operation) |
| Total harmonic distortion factor | 0.03% or Less (8 Ω, 75W) |
| Cross modulation distortion factor | 0.03% or Less (8 Ω, 75W, 70 hz : 7 khz = 4 : 1) |
| Output bandwidth | 5 Hz to 50 kHz -3dB (0.1%) |
| Input sensitivity | Phono1, 2 : 2.5 mV Tuner : 100 mv (with level set) Aux1, 2 : 100 mv Mic:2.5mV |
| Signal-to-noise ratio | Phono:65dB Tuner, Aux : 80 dB Mic:60dB |
| Tone control | LUX System NF Type with Bending Point Frequency Switching |
| Residual noise | 0.5 mV or less |
| Attachment | Linear equalizer High filter Low filter Low booster |
| External dimensions | Width 485x Height 165x Depth 300 mm |
| Weight | 15.5kg |