SPECIFICATIONS
•
Channel Input Impedance:
Greater than 20 k
Ω
.
•
Maximum channel input level:
Greater than
+26 dBu.
•
Maximum insert return input level:
Greater than
+26 dBu.
•
Maximum insert send level:
Greater than +27 dBu, able to drive 600
Ω
.
•
Maximum output level:
Greater than +26 dBu into 600
Ω
.
•
Frequency response:
±0.5 dB 20 Hz to 20 kHz.
•
THD + N:
Not more than 0.07% from 50 Hz to 10 kHz at +20 dBu output (22 Hz to 22 kHz bandwidth) into 600
Ω
.
•
Noise:
All faders up, all subgroups in, measured at the main output, 22 Hz to 22 kHz. Better than -80 dBu.
14
MCM-20.4 POWER SUPPLY
The MCM range of summing mixers features a hybrid power supply concept, in a very similar way to famous On Slot
Technology (OST) employed in Heritage Audio´s successful 500 series enclosures range.
An external switching power supply enters the unit by means of a 5 pin XLR connector, where it is further filtered using
a PI configuration, using a big common mode choke.
Further, linear regulation stages are used. Different regulation is used for channels and buses, and output stages.