McIntosh MC501
¥ 682,500 (1 unit, tax included, around 2007)
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 |