Pioneer MA-62
¥ 48,500 (around 1975)
Commentary
Mixing amplifier equipped with 6 ch input.
There is a Route 6 input for six microphones. In addition, four line inputs and two phono inputs can be used depending on the switch. The microphone input for each channel is equipped with a 20-dB attenuator and a low-cut filter.
The CH-3 and CH-4 are equipped with a panpot function that allows you to move the sound image orientation freely. The other channels are equipped with L/L & R/R channel selection switches.
The Phono input is a monaural input. By combining two channels, you can mix a stereo pair.
It has a marking space where you can write letters and marks directly with a water-soluble felt-tip pen.
Equipped with a memory marker so that the set level position can be checked at any time.
Equipped with fade-in / fade-out function.
It has a headphone port for monitor and two output ports.
Equipped with large handle and vinyl dust cover.
Model Rating
| Type | 6 ch mixing amplifier |
| Input | ch1, 2 : MIC, Phono ch3, 4, 5, 6 : MIC, Line |
| Channel Selection | ch1, 2, 5, 6 : L/L & R/R switching ch3, 4 : L to R Continuously Variable (pan pot) |
| Input Sensitivity / Impedance | MIC : 0.25mV/4.7k Ω Phono : 2.5mV/50k Ω Line : 50mV/50k Ω |
| Microphone attenuator | 0 dB, -20dB |
| Microphone maximum allowable input | 250 mV (at attenuator -20dB) |
| Phono maximum allowable input | 250mV(1kHz) |
| Output terminal | Stereo 2 systems (parallel connection) |
| Rated output level | 330mV |
| Maximum power output | 5 v (at T. H. D. = 0.5%, load impedance 50k Ω) |
| Harmonic distortion factor | 0.2% or Less (at Output 1 V) |
| Channel separation | 70 dB or More (1 kHz) |
| Crosstalk | 70 dB or More (1 kHz) |
| Frequency characteristic | MIC : 20 Hz to 15 kHz - within 3 dB Phono : RIAA deviation within ± 0.5 dB Line : 20 Hz to 25 kHz - within 1 dB |
| Microphone low cut | fc=200Hz(6dB/oct) |
| Cross-channel interference | Within 1 dB |
| Residual noise | 0.05 mV or less |
| S/N ratio (IHF, A-network) | MIC:52dB Phono:60dB Line:67dB |
| Headphone out | Up to 260 mv (8 Ω) |
| Semiconductor used | Transistor : 22 IC : 2 Diode : 3 pcs |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption | 6W |
| External dimensions | Width 400x Height 132x Depth 264 mm |
| Weight | 5.7kg |