LUXMAN CL35
¥ 75,000 (released in June 1970)
Commentary
This preamp was created by thoroughly reexamining the PL45 type that was announced as the last preamp of the vacuum tube.
The results of analysis of famous products from overseas are incorporated into the finished product to further enhance the completeness.
The equalizer circuit is a 3-stage K-KNF type (NF is applied from cathode to cathode).
This configuration is also used in the Marantz Model 7, and the CL35 has improved input resistance.
For the tone control, NF type of LUX method is adopted, and the bending point can be switched in 3 places of high and low.
The tone control can be skipped with the defeat switch.
The filter has 2 high-cut and 2 low-cut levels.
The output stage uses a cathode follower circuit, making it a stable circuit with low output impedance and less susceptible to fluctuations in the power supply voltage.
Equipped with a socket for step-up transformer and compatible with MC cartridge.
All of the CRs used inside are mounted on the printed circuit board, and the layout is symmetrical with the independent boards for each channel.
In addition, vacuum tubes can be easily inserted and removed simply by removing the rear protective board.
Model Rating
Type | Tube type control amplifier | ||||
Frequency characteristic | 10 Hz to 30,000 kHz ± 0.5 dB or less | ||||
Total harmonic distortion factor | 0.08% or Less (at Output Voltage 2 V) | ||||
Output Voltage (1 kHz) | Rating : 2 V (Distortion Factor : 0.05% or Less) Maximum : 20 V (Distortion Factor : 0.3% or Less) |
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Input sensitivity (at 1 V output) | Phono1, 2 : 1.3 mV AUX1, 3 : 130 mV or more AUX2, Monitor : 130 mv MIC:0.6mV Center MIC:0.8mV |
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Input impedance | Phono1 : 100k Ω, 50k Ω, 30k Ω Phono2 : 50k Ω AUX1, 3, Monitor : 110k Ω AUX2 : 200k Ω MIC : 33k Ω Center MIC : 75k Ω |
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SN ratio (output regulator center, input short) |
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Equalizer | RIAA deviation within ± 0.3 dB | ||||
Tone control | LUX System NF Type with Bending Point Switching Low-pass curve point : 150 Hz, 300 Hz, 600 Hz High-frequency bending point : 1.5 kHz, 3 kHz, 6 kHz With Defeat Switch |
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Filter | Low Cut : 30 Hz, 70 Hz (-12dB/oct.) High Cut : 5 kHz, 9 kHz (-12dB/oct.) |
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Attachment | Tape monitor switches and terminals AC outlet Booster transformer insertion socket |
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Semiconductors used |
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Power supply voltage | 100 VAC, 50Hz/60Hz | ||||
Power consumption | 30W | ||||
External dimensions | Width 476x Height 190x Depth 275 mm | ||||
Weight | 12kg |