Alpha 15A Upgrade in OB

Horizons · 19th June 2017, 05:46 PM

Have been running Alpha 15As in biamped OB for a few years. Wondering if there is a reasonable 12 or 15" upgrade to these. TIA

DougL · 19th June 2017, 07:54 PM

I have questions:
What's your Crossover point?
Are you looking for a Specific Qts?
What's your Budget?
What don't you like about the Alpha 15's?

Horizons · 19th June 2017, 09:11 PM

>>What's your Crossover point?
Currently 200 Hz

>>Are you looking for a Specific Qts?
Seems you want around 1.0 or greater in OB

>>What's your Budget?
$300-400 pair max?

>>What don't you like about the Alpha 15's?
They don't seem to have the best definition but I might just need more power and a lower xover point.

Thanks

Lojzek · 20th June 2017, 08:32 AM

Hi, I don't think it's necessary to exchange the woofer, rather if, then design philosophy, imo. This is the response difference between a sealed and OB driver loading, having in mind that I haven't simmed additional stuffing that would have reduced the Fb peaking. In case that your XO filter isn't optimized, you'd for sure note something wasn't as good as it might have been. Baffle step is factored in.

19th June 2017, 05:46 PM	#1
Horizons diyAudio Member Join Date: Sep 2004 Location: Nevada	Alpha 15A Upgrade in OB Have been running Alpha 15As in biamped OB for a few years. Wondering if there is a reasonable 12 or 15" upgrade to these. TIA

19th June 2017, 07:54 PM	#2
DougL diyAudio Member Join Date: Feb 2004 Location: Wheaton IL.	I have questions: What's your Crossover point? Are you looking for a Specific Qts? What's your Budget? What don't you like about the Alpha 15's? __________________ Scienta sine ars nihil est - Science without Art is nothing. (Implies the converse as well) Mater tua criceta fuit, et pater tuo redoluit bacarum sambucus

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19th June 2017, 09:11 PM	#3
Horizons diyAudio Member Join Date: Sep 2004 Location: Nevada	>>What's your Crossover point? Currently 200 Hz >>Are you looking for a Specific Qts? Seems you want around 1.0 or greater in OB >>What's your Budget? $300-400 pair max? >>What don't you like about the Alpha 15's? They don't seem to have the best definition but I might just need more power and a lower xover point. Thanks