Luxman CX-1

September
1 9 7 7 september 1977
1 9 8 1 1981

Later addition to the 1976 Laboratory Standard Series and more compact than the contemporary AD8000.

The first stage employs only FETs in the first stage to avoid the signal/noise ratio be influenced by (high-) impedance fluctuations as would be the case with regular transistors.

A silicon steel plate shields entirely the enclosure while the input terminals are wired directly to the PCB with optimal earth point for perfect elimination of external inductance noise.

A ripple filter blocks AC fluctuations ; a constant-voltage power-supply with large capacitance decoupling circuit deal with the rest of the ps, after rectifying and regulation.

Gold-plated terminals, metal-film caps and resistors and precision pots are used.

Given the +20dB or +30dB level boost, a ten-second muting circuit is provided to block sound during on/off cycles and avoid repeatedly ruining those perfectly new replacement woofers of yore.

The bypass position lets you use a moving magnet cartridge... but why bother when moving coil is so good ?

Luxman CX-1, image 1 Luxman CX-1, image 2
Luxman CX-1 specifications
Title Value
Voltage gain : 20dB for MC cartridges of middle output
30dB for MC cartridges of low output
Frequency response : 5Hz...500Khz (-1dB)
THD : no more than 0,003%
(20dB position, 300mV outut, 20Hz...20Khz)
no more than 0,005%
(30dB position, 300mV outut, 20Hz...20Khz)
Input equivalent noise : -148dBV
(20dB position, input shorted, RIAA, IHF-A)
-150dBV
(30dB position, input shorted, RIAA, IHF-A)
Input overload voltage : no less than 90dB (1Khz)
no less than 80dB (20Khz)
Input impedance : 100 Ohm
Output impedance : 100 Ohm
PC : 5W
Dimensions : 13,8 x 30,5 x 7,7cm
Weight : 2,7kg.
List price : 58,000¥ (1977)
page online since : august 2010
page updated : not yet
page type : LGT / KNB
page weight : 131.57 Kb / 0 b
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