Originally Posted by sladi75
My five cents to M2 vs. 4722 conversation.
On home theatrical listening distances 4722 has more advantageous dual-woofers basic concept than M2. Takes less damage from always difficult-to-handle floor reflection, that is.
Despite being insanely more expensive, M2 is on underdogs position against its "cheapo" dual woofered brother immediately when exiting from near field: 4722 gets to utilize its better radiation pattern control to minimize that floor bounce. As a result, its takes a lot less floor damage than M2. Compared to this fundamental core-advantage, more expensive drivers etc M2´s $$$ -virtues are literally nothing. M2 is primarily intended for shortish listening distance -environment in control room.
I kinds of said this in my post right above yours, but I disagree on the way you present it as always a problem.
It's totally possible to set up or design or treat a room where the problem is not so much a problem.
Also for HT ideally you XO to subwoofers, which you can also located in others places or use them to smooth the response. The problem of a single 15" and room/midbass response is real, but it's not impossible.
I actually did a lot of experimenting with single vs double, even triple 15" - with regards to in room, and outside (driveway) looking at this issue.
Turns out- the single 15" actually sounds the best to me. Measurements are good too.
I tried MTM. I tried double woofers. I even tried triple. I tried speaker upside down on MBM, versus MBM added above it. You name it, I tried it. Measured it. I spend months dragging them outside and measure them too.
My garage looked like a speaker factory for a year
Turns out in the two times I looked at it, the bass response wasn't terrible inside and it sounded better in the midrange.
When I ran the floor MBM, I had the most effective result with a low XO on it, almost using it for baffle step compensation and the very bottom, but keeping it out of the midrange.
I even tried swapping between woofers (TD15 and JBL 2226) and even tried mixing them.
A single 15 can work fine, you just need to set it up right. And the M2 can work from 12 feet back just fine too. The reverse is true, I don't feel like the 4722 would work well at all with a short distance.