hi all,
This is my first OB speaker project. I'm using Eminence Beta 15 for sub and SAL 6.5'' full range driver from DIYstore (SAL08C08 is a 6.5” full range driver in an 8” frame CNC machined from 10 mm aluminum stock) Scandinavian Audio Labs SAL 08C08 (Pair) – diyAudio Store
I use miniDSP 2x4 HD for active Xover and biamping with FW F4 amp for Sub and Aleph J amp for FR.
I've been reading and experimenting with a a few baffles. After many trials, I came to a good sounding result. My latest baffle revision is 40'' height x 32'' width x 1''1/2 thick solid wood. This is the baffle for FR driver only. I mounted driver off center and closer to the top of the baffle. The size/thickness is not based on any formula or theories, it's just my experiment and a few readings, feedback here and there from different people.
For sub, I use H frame and mount it in a separate baffle. This is another discussion which I won't go into for now.
My question is do we have any solid study/theory behind for the size of full range open baffle to achieve absolute best/optimal sound? or size/thickness of baffle does not really matter once we use active Xover and EQ I've seen alot of people using 20''w x 40'' length seems like a (2:1) ratio to me but not don't understand the reason why they use it that way.
Please let me know if you have any feedbacks or insights.
Thanks,
Tom
This is my first OB speaker project. I'm using Eminence Beta 15 for sub and SAL 6.5'' full range driver from DIYstore (SAL08C08 is a 6.5” full range driver in an 8” frame CNC machined from 10 mm aluminum stock) Scandinavian Audio Labs SAL 08C08 (Pair) – diyAudio Store
I use miniDSP 2x4 HD for active Xover and biamping with FW F4 amp for Sub and Aleph J amp for FR.
I've been reading and experimenting with a a few baffles. After many trials, I came to a good sounding result. My latest baffle revision is 40'' height x 32'' width x 1''1/2 thick solid wood. This is the baffle for FR driver only. I mounted driver off center and closer to the top of the baffle. The size/thickness is not based on any formula or theories, it's just my experiment and a few readings, feedback here and there from different people.
For sub, I use H frame and mount it in a separate baffle. This is another discussion which I won't go into for now.
My question is do we have any solid study/theory behind for the size of full range open baffle to achieve absolute best/optimal sound? or size/thickness of baffle does not really matter once we use active Xover and EQ I've seen alot of people using 20''w x 40'' length seems like a (2:1) ratio to me but not don't understand the reason why they use it that way.
Please let me know if you have any feedbacks or insights.
Thanks,
Tom
If you want to save sawdust use physics. The physics of OB is simple wave mechanics. Even simpler is to use a program that does the maths for you:
Home of the Edge
Edge is easy to use, free and lets you see what happens to the output with different baffle sizes etc
If your FR driver is already in a 223mm diameter circular mounting frame it has its own baffle. If you just plug the mounting screw holes and suspend it then the frequency drop off with that minimal baffle is:
Home of the Edge
Edge is easy to use, free and lets you see what happens to the output with different baffle sizes etc
If your FR driver is already in a 223mm diameter circular mounting frame it has its own baffle. If you just plug the mounting screw holes and suspend it then the frequency drop off with that minimal baffle is:
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