DIATONE M-P05
¥ 28,000 (around 1978)
Commentary
In addition to its thin design, this preamplifier is equipped with a mixing amplifier with a reverb function.
Mix with other sources using a wired microphone, or mix two microphones simultaneously using an FM wireless microphone.
The mixing amplifier section also has a reverb mechanism that allows you to add reverb to only two microphones, separate from other sources.
The equalizer amplifier uses a 3-stage direct-coupled class-A SEPP circuit with differential amplification with dynamic load at the first stage, high voltage and low noise IC. Low distortion is achieved by applying stable NF to a circuit with high gain and excellent bare characteristics.
A tone defeat switch is installed to prevent undulation of the frequency response at the tone control flat position.
The tone control amplifier uses a high voltage and low noise IC similar to the equalizer amplifier.
Two tape decks can be connected for tape duplication.
Equipped with a subsonic filter.
Model Rating
| Type | Control amplifier |
| Input Sensitivity / Impedance | Phono : 2.5mV/50k Ω Tuner, Aux, Play1/2 : 150mV/20k Ω Mic : 1mV/6k Ω |
| Output Level / Impedance | Output : 1 V (Rated) / 600 Ω, 10 V (Maximum Output) Rec1/2 : 150mV/600 Ω |
| Maximum allowable input | Phono:220mV Mic:90mV |
| Frequency characteristic | Phono : 20 Hz to 20 kHz ± 0.5 dB Tuner, Aux, Play1/2 : 5 Hz to 80 kHz + 0 to 0.5 dB Mic : 80 Hz ~ 12 kHz + 0 -3dB |
| Harmonic distortion factor | Phono:0.05% Tuner, Aux, Play1/2 : 0.02% |
| S/N | Phono:74dB Tuner, Aux, Play1/2 : 99 dB Mic:58dB |
| Tone control | Bass : ± 10 dB (100 Hz) Treble : ± 10 dB (10 kHz) |
| Subsonic filter | 18 Hz, 6dB/oct. |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 8W |
| External dimensions | Width 270x Height 70x Depth 248 mm |
| Weight | 2.7kg |