Connect the pre-amp outputs of the Rogue to the AV processor loop inputs of the MFA308. When you engage the AV processor loop/HT bypass button, it simply bypasses all of the pre-amp functions of the MF Integrated, basically turning it into a power amp. None of the "control" functions on the MF Integrated will work when in bypass, so you would use the volume control on the Rogue when the AV processor bypass is engaged.
You might also want to try connecting all of your source components to the Rogue to determine if you like the sound better when the tube pre-amp is in the circuit.
Enjoy,
TIC
You might also want to try connecting all of your source components to the Rogue to determine if you like the sound better when the tube pre-amp is in the circuit.
Enjoy,
TIC