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Rebuild EPI 100 parts to new speaker with EPI 150 dimensions?

T

Thistle

New Member
I have a stock EPI 100V and a EPI 100 dimensioned speaker box with red-ringed tweeter and original 8" woofer. I also have another tweeter and 8" woofer. In building the EPI 100 copy, I made a few cosmetic mistakes. I would like to try to build a nicer looking pair of speakers.

I would like to see if I could sell the stock EPI 100V, and then build a pair of EPI 150 dimensioned speakers.

I know that the EPI 150 dimensions are 25" x 15" x 11" vs. 21" x 11" x 9" for the EPI 100.

Here's the question: Is the 150 much better sounding than the EPI 100? What is the distance of the top of the tweeter from the top of the speaker? What is the distance from the side of the tweeter to the side of the box? What is the distance of the woofer from the top? (I'm asking because I understand the importance of the placement of these speakers for the quality of the sound.)

If I buy from parts express, what are the best value caps to buy? What about internal baffling? Fiberglass?

Any other items to consider?

Thanks!

Thistle.
 
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nerdorama said:
The larger box volume would reduce the system Q which might make the bass sound a little cleaner/tighter. Human speakers has charts for box volume vs. tuning for the different woofers. The Human model 001 is the replacement for the original EPI 8" woofer so should give an idea about the box volume question.

https://www.humanspeakers.com/diy/parts/001.htm

This page has info for the different models.
https://www.humanspeakers.com/e/epimodels.htm#brown

John
Click to expand...
John, Thanks for the info. Would greatly appreciate if anyone can give location of tweeter and 8" within frame of their EPI 150 speakers - how far from top and sides.
 
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If you don't get an answer from somebody who owns the speakers, you can take a pict or a drawing from the web, stretch or enlarge to scale, knowing the real dimensions, and measure on that scaled picture the distances you need. It will be accurate enough for this purpose.
 
I can do that for you, if you need it. Just post a link to a good picture or drawing of the speaker and the real size of the box.
 
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