BEVERIDGE RM-1/RM-2
¥ 980,000 (released in 1980)
Commentary
A bulb-type control amplifier that Vivaridge announced as a single component for the first time.
Control amplifier RM-1 consists of an amplifier body RM-1 and a power supply RM-2.
A semiconductor circuit is used for the power supply and control system supporting the amplifier system, and a vacuum tube is used for the amplifier element.
The main circuit configuration consists of a DC amplifier configuration using a servo loop, a CR phono equalizer, an absolute phase control, and a touch-sensing mute mechanism.
The audio booster consists of 12 6DJ8 (E88CC) balls.
Equipped with a super sonic filter and a sub sonic filter.
Mutual interference is suppressed by using a separate chassis for the power supply.
Model Rating
| Type | Control amplifier |
| Gain | Phono : 40 dB ± 6 dB Line:20dB |
| Phono maximum allowable input | 1000 mv (Gain 34 db) 500 mv (gain 40 db) 250 mv (gain 46 db) |
| NOISE | Input Conversion 0.5 μ V (10 mv Input, S/N86dB) |
| Frequency characteristic | Phono : 1 Hz to 100 kHz ± 0.05 dB 0.15 Hz to 600 kHz -3dB Line : 1 Hz to 100 kHz ± 0.05 dB 0.015 Hz to 600 kHz -3dB |
| THD and IMD | 0.02% or Less (at 10 V output) |
| Slew rate | 100 V / μ sec. |
| Blend control | stereo/1/2/3/mono |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 130W |
| External dimensions | RM-1 : Width 483x Height 89x Depth 230 mm RM-2 : 483 mm wide x 89 mm high x 230 mm deep |
| Weight | RM-1 : Approximately 6 kg RM-2 : Approximately 10 kg |