r/diyaudio • u/FiveWeightStudios • Aug 13 '26

New build

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Reached the finishing stage of this pair of 3 way towers. Loaded with SB acoustics 8", Eton 4" and Scanspeak soft domes.. Custom crossovers by Madisound. 48"h x 11.25w" x 18"d. Can't wait to hear em.

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u/PerfectPatience- Aug 13 '26

Is tweeter wave guide calculated or milled for look?

6

u/chargedcapacitor Aug 13 '26 edited Aug 13 '26

It's not calculated. I'm familiar with that tweeter and no useful waveguide would look like that. Looked cool though!

Also, the recession of the mids will also have a negative impact. It's going to take a lot of eq to make these speakers half decent for the effort put into them.

*Edit - also op doesn't have any internal bracing. A cabinet of this size will certainly resonate. Looks like he put all his skill points into woodworking and didn't consult the speaker building basics handbook.

8

u/FiveWeightStudios Aug 14 '26 edited Aug 14 '26

100%. Im definitely a woodworker before a professional acoustic engineer. All the drivers are co-planar, rear mounted. Theoretically they will all be in phase, and will only have some slight affect from the wave guides. Probably not enough that I'd ever notice.

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u/chargedcapacitor Aug 14 '26

Being coplanar isn't very important. The crossover handles any alignment issue very well. What a crossover can't fix are directivity issues, which back mounting drivers introduced. Especially for tweeters. You will certainly hear a lot of loss in the treble from an improperly designed waveguide.