building a stereo pair speakers ... but i cant get the cabinet that i want for the 2 6'5 inch bass drivers. They just dont sound good in the one i already made. H e L P?
02-04-2009, 07:20 AM
This Guy
Quote:
Originally Posted by Lamerick247
building a stereo pair speakers ... but i cant get the cabinet that i want for the 2 6'5 inch bass drivers. They just dont sound good in the one i already made. H e L P?
What's wrong with the sound? You could download a bass box program and play around with that to find the proper box volume to get the sound and roll-off that you're looking for. A better place to ask this question would be the partsexpress.com "tech talk" forums. There are a lot of experienced speaker builders there that could give you some great advice as far as speaker building is concerned.
02-04-2009, 04:35 PM
hermanv
Quote:
Originally Posted by Lamerick247
building a stereo pair speakers ... but i cant get the cabinet that i want for the 2 6'5 inch bass drivers. They just dont sound good in the one i already made. H e L P?
Any decent bass box program will require you to enter various speaker parameters. The are commonly known as the Theile/Small parameters.
I'm guessing that you wil need to know at least:
Fs (speaker self resonance)
VAS ( speaker compliance vs air)
Qts (Total "Q" electrical and mechanical)
There are a number of sites that explain ths in some detail and sites that list the parameters for popular drivers.
After that just search for a woofer box design tool (often Excel based).
02-06-2009, 10:31 AM
hydroman
How hard is it? You should be building a sealed enclosure of ~.5Cubic feet or so.
Is your first enclosure truly sealed? I got a lot of buzzing unitl i RTV'ed the speaker to the enclosure.
Put some insulation in the cavity to damp resonances?
i don;t mean sound snotty - it just is one of the easier projects to do... Not at all like building the correct ported enclosure. Then you have many things you could do wrong! ;)