JC2 Bypass gain settings

I don’t understand.  If the bypass in the JC2 works like every other one on the planet it bypasses the preamp’s volume control so the Marantz completely controls the volume.  For HT and using the bypass input the volume levels on the JC2 shouldn’t come into play at all unless I’m just missing something here. 

@soix 

Your correct,  however  it's when adjusting  the amplifier gain on my Jc5 to the 12 o'clock or halfway posting does the Marantz get affected as the gain and volume control on the Jc2 are bypassed when in bypass mode, this is where I'm  not clear on where the settings should be, this is all to get the volume control in the sweet spot  of  the 11 to 1 o'clock position as it's  supposed to have the least distortion and track the left and right channels the closest. 

Well, leaving aside you can just try different gain levels and see what sounds best, yeah I’d say for an HT application you might be overthinking this a bit.