Yamaha CX-1

1 9 9 2 1992
1 9 9 7 1997

After the gain in size and multiple functions of its preamps throughout the 1980s (CX-1000, CX-10000), Yamaha went slim-line again with two versions of the same preamp :
strictly audio (CX-1) and conveniently audio-video (CX-2).

Both were part of the ToP-ART series : Total Purity Audio Reproduction Technology.

The CX-1 uses a very beefy trafo, select parts (Elna Duorex and Great Supply), all-ALPS pots, of which the motorized volume is a 4-gang, a model used in manymany components of the time.

However, there is only one single PCB holding everything from phono to power-supply... ToP-ART had its limits.
But the pre-out is a low 47 Ohm - good.

Anyway - pretty rare, perhaps due to a fairly uninviting design, but the CX-1 is Yamaha's last strictly 2-channel preamplifier and still worthwhile.

Yamaha CX-1, image 1 Yamaha CX-1, image 2 Yamaha CX-1, image 3
Yamaha CX-1 specifications
Title Value
Inputs : Phono MC (100µV / 1kOhm / 220 Ohm)
Phono MM (2,5mV / 47kOhm)
CD / Aux / Tuner (150mV / 47kOhm)
Maximum phono level : 7mV (MC)
180mV (MM)
Record outputs : 150mV / 2,5kOhm
Preamp output : 1,5V / 47 Ohm
Max preamp output : 10V max (20Hz...20Khz, 1% THD)
THD : 0,003% (MC > Rec out, 3V)
0,002% (MM > Rec out, 3V)
0,002% (Line> Pre out, 3V)
RIAA curve : ±0,2dB
S/N ratio : 90dB (MC, 500µV, IHF-A)
95dB (MM, 500mV, IHF-A)
110dB (Line, IHF-A)
Residual noise : 1,0µV
Channel separation : 80dB (MM, 1Khz)
70dB (MM, 10Khz)
85dB (line, 1Khz)
65dB (line, 10Khz)
Subsonic filter : 15dB/octave below 15Hz
Muring switch : -20dB
Dimensions : 43,8 x 8,6 x 40,5cm
Weight : 8,8kg.
Accessories : IR remote control
Features Features
4-gang volume pot
Symmetric structure
Dual-mono boards
Dual-mono phono EQ section
Pure Direct switch
Gold-plated terminals
Extruded aluminium knobs
Non-resonant materials
Massive XL-AV damping feet
Massive CD and Pre-Out terminals
2-position Cartridge load switch
page online since : 2006
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