Does sloped baffle affect X.O.

[dvdwmth]

If I mount drivers on a sloped baffle with crossover from a project that was designed for a flat baffle, will it require changes to the crossover?

[dhenryp]

It might. There are a couple of things that I could see making a difference. The biggest thing I would think is the fact that a sloped baffle will have you listening to the driver at some angle off axis. It's possible that the speaker's off axis response could be different enough that it could affect the design of the crossover. The second thing is time aligning the speakers. A sloped baffle will affect the relative acoustic centers of the speakers. It will probably make the centers more closely aligned (depending on exact drivers). This might make things better or it could make things worse if the original crossover took into account the flat baffle misalignment. This depends on the exact crossover and how steep it is. It seems to me that the angled baffle is not likley to have a huge negative affect.

[dvdwmth]

thanks for the reply.

Good to know. I want to build a 2 way with a good reputation to use as a reference to compare to my own experiements. I find sloped baffles aesthetically pleasing and time alignment seems like a good idea but some of the designs I'm looking at, like the MBOW1 for instance, have flat baffles.

I've also heard some members here suggest to others that they build speaker X but put it in cabinet Y even though X had no time alignment and Y did, so I was curious.

Think I'll stick to the documented design and experiment later.

[Bricolo]

the problem is that if you want the slope to align the accoustic centres, you'll have to make a very sloped bafle or space the drivers a lot
a slight (15°) slope and nearly no spacing will bring the AC closer, but not aligned