CLASSE OMEGA PRE
¥ 1,950,000 (around 1999)
Commentary
OMEGA series preamp.
A balanced amplifier configuration is used from input to output.
In addition, a symmetrical discrete circuit is used for the circuit. A low-noise, low-distortion J-FET is used for the input stage, a high-gain bipolar is used for the voltage amplification stage, and a high-power MOS-FET with high drivability is used for the output stage.
The power supply consists of independent left and right channels, two toroidal transformers and a large capacitor with a total capacity of more than 62,000 μ F.
The volume part adopts 12-bit logic control method and uses 48 high-precision metal film resistors, and realizes high-quality analog signal transmission despite digital control.
The chassis structure adopts a separate chassis configuration with the power supply part as a separate case, eliminating interference between circuits.
Wireless remote control is included.
Model Rating
| Type | Control amplifier |
| Frequency characteristic | 20 Hz ~ 20 kHz ± 0 dB (Measurement Limit or Less) |
| Input Sensitivity / Impedance | 120mV/33k Ω |
| Output Voltage / Impedance | 27Vp-p (Maximum) / 50 Ω |
| Signal-to-noise ratio | 95dB |
| Harmonic distortion factor + noise | 0.0006% |
| Input terminal | Balance (XLR) : 4 systems (1 system is tape input) Unbalanced (RCA) : 4 lines (1 line is tape input) |
| Output terminal | Balance (XLR) : 2 systems Unbalanced (RCAs) : Route 3 (one is tape-out) |
| Power consumption | 25W |
| External dimensions | Width 483x height 64x depth 261 mm (common to control module and power supply module) |
| Weight | 11.4kg |