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MC501
Commentary

Monaural power amplifier with fully quad balanced circuit.

In all signal paths from the input to the output, two symmetrical full-balanced circuits are constructed. The full quad-balanced circuit that combines the outputs with auto-former reduces noise and distortion components to levels below the measurement limit.

By adopting a wide-range output auto-former, the same output can be sent to each load regardless of the load of 2/4/8 Ω while maintaining the wide-band characteristics of 10 hz to 100 khz.
It also protects the speakers from damage to the system, such as power transistor failures.

It is equipped with a power guard that limits the gain of the comparator to limit the output distortion when the input / output waveform difference exceeds the maximum power capability, and a sentry monitor circuit that monitors the dynamic operation time, voltage, and current of the output stage and controls the current to be within a safe level.
In addition, protection circuits such as DC protection, temperature protection, turn-on delay and in-rush protection are incorporated.

Equipped with a Blue Eyes Power Meter that displays the actual output.
You can also turn off the meter lights.

Model Rating
Type Monaural power amplifier
Rated output 500W (2 Ω, 4 Ω, 8 Ω)
Total harmonic distortion factor Not more than 0.005%
Input Sensitivity / Impedance Balance : 4.2V/20k Ω
Unbalanced : 2.1V/10k Ω
Speaker output 1 System x3 (for 2 Ω, for 4 Ω, for 8 Ω)
Input terminal RCA : 1 system
XLR : 1 system
Power consumption 8A
Maximum external dimensions Width 445x Height 245x Depth 376 mm
Weight 40.2kg