Thank you Vito, Criterion's home theater bypass is very flexible. Any/some/all of the Criterion's balanced or unbalanced inputs can be configured/assigned to home theater bypass. This means that you could have up to 6 inputs configured as theatre bypass if you really wanted.
Note that by default, as all inputs are transformer coupled, all inputs RCA/XLR have identical gain structure. If you want to adjust input gain for any/some/all of the inputs, you can assign a gain offset +/- 10dB in 0.5dB increments to any of the inputs.
All main outputs (2XLR, 2RCA) are also transformer coupled. . . This mean that by default they would present an identical volume gain to a pair of amplifiers that you may be using in a biamped configuration. . . But for greater flexibility in biamped configurations, RCA output 2 can also be configured with an output gain offset (+/- 10dB with 0.5dB granularity).
What's even more interesting, is that the record outs are controlled by a completely separate preamplification circuit. . . this means that you could even assign a Criterion input to drive an amp(s) in a separate room, which would enjoy a completely different musical program with a completely different volume.
On your specific question of compatibility with ML amp. . . Criterion's output impedance is only 60Ohms in both balanced and unbalanced mode. This means that Criterion is compatible with all but the most peculiar amps on the market. Unless your amp has an input impedance of less than 1200 Ohms, you will have no problems.
Saluti,
Guido
