Room Question

I faced a similar situation and went with the smaller section for my system. The primary reason being the end result seemed more like a "real room".
Love my space, but have come to wish it were a tad bigger. Thus have been toying with the idea of tearing down the interior wall which formed the L and using the whole basement space. Not ideal in either case.

Considerations that come into play, the size and type of your speakers etc. Will your music room also be for television as well as audio? Short or long wall for listening and or viewing? Account for your expected seating for the room.

The expected use for the rest of the family in my basement conversion did not materialize as I had expected. Wish I had been a little more selfish.

Post your result, would be interested to know.

Give some of the funds over to sound insulation of the AC and heater and duct work. Another area I wished I had done a little better. M snow's suggestion of trying it both ways may be something I could play around with.

Raks,...Never heard that saying before of "Boat", I will have to remember that. Hope your project will not be a large boat and has smooth sailing.