I'm very glad to see someone else bringing up this issue. I have the Integra DTR-7 and I've noticed the same funny behavior with the bass management. When you set sub=yes, the fronts are low-passed no matter whether you set front=LARGE or front=SMALL. This is in all modes other than direct...
I just took some measurements with test tones and confirmed the problem: when you tell the receiver that you have a sub, it makes NO DIFFERENCE whether you say the front speakers are "large" or "small". Either way, the 12 dB per octave low pass filter is applied to the fronts.
The...
I always thought that setting the fronts to "large" on the receiver would remove any crossover to the sub, but it seems that this is not true! I have an Onkyo DTR-7, full range front speakers and a sub. No matter whether I set the fronts to "small" or "large", the low frequencies are crossed...