Jim Shearer's Fostex FF85K and Eminence Alpha 15A Open Baffle Speaker

[superlian]

What about a mini version with Eminence 10a + fe83en for a small room?

I have a project with the teenagers. The mission is to reduce the use of Facebook and learn them DIY skills. A golden opportunity to start with avoiding bad speakers in early age

[Jim Shearer]

Without modeling this, I would expect the Q(ts) = 0.59 is too low to work well on OB without going to bi-amp and using EQ. And remember that the baffle width is part of what makes Martin's small, passive OB work, so decreasing the width would also likely make EQ necessary. Plus, the cost of the 10" isn't all that much less than the 15"--and the performance will be much less than the 15".

Bottom line: I don't think I would bother.

Next thought: How about giving up on the OB woofer & making a simple OB with a driver like Wild Burro's Betsy?

Cheers, Jim

[superlian]

Summer project for the boys (14 & 15 years) with fe83en and a15a.
We use a NAD amplifier and Project USB dac connected to Spotify premium (320 kps).
Dubstep is not my cup of tea but they are very satisfied
It is playing loud and with punch. The boys said wow. The bes.t system at school :-)


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http://www.youtube.com/watch?v=ncT8CRszM8E

[Godzilla]

Wow is right! Great looking system... i had a little pair of bookshelf AR 15s when i was in school... dull, boring, flat sound... but they were considered pretty darn good back then. I don't even think powered subs were available back then to enhance the bass? Love that you're using the NAD... amazing how we can get such great sound on the cheap these days. I bet it sounds fantastic! Great job dad!

[chazdrumzalot]

Jealous!