I think you have a technical misunderstanding here. The max SPL of a monitor or sub has no real relation to how loud it will play given a particular music signal until it reaches its absolute limit. GLM of course level matches to compensate for distance, but again that has nothing to do with max SPL.Are you sure about that? I had guessed that GLM just reduces the max SPL digitally on the monitors to cope with the sub being the 'weakest link'. This way, the whole system gives consistent SPL for all content. If you allow the system to play SPL as a function of content, then bass light music would go extremely lound, but then suddenly the volume needs to be reduced when the kick drum kicks in.
You asked if a 7360A will severely limit the SPL of a system including it and an 8361A and the answer is yes, it will, if the content's loudest frequencies are in the 7360A's frequency range.I had seen the other thread. I asked to get more balanced feedback, being aware of some members having rather extreme SPL requierements
If you were really asking whether 7360A+8361A will play *less loud* than 8361A by itself, the answer is no, absolutely not. It will still play louder than 8361A by itself.
Whether or not a particular combination of monitor and sub plays loud enough *for you* is also a different question. Pretty much all modern subs will compress at certain frequencies if they're asked to play too loud, often they will do this with no feedback or audible strain at all. So most people have no clue when they're being sub limited.
Genelec's subs at least do have a clip light so it should be easy to determine when they're hitting their limit.