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SLA Pro driver question
Posted: Tue Jun 30, 2015 9:18 pm
by kenkenni
Question. Do I want to purchase an ALPHA-6CBMRA or is there a different Alpha 6 I should be looking at? Also do I want an open or closed back?
Re: SLA Pro driver question
Posted: Tue Jun 30, 2015 9:42 pm
by DJPhatman
You want the Alpha 6A, or the AlphaLite 6A. Not the closed-back model.
Re: SLA Pro driver question
Posted: Tue Jun 30, 2015 10:08 pm
by kenkenni
Thanks Phatman. I saw more than one type so I wasn't sure. I will finally build a couple of SLA Pros. Been wanting to do this for a while. Saw the video from one of the members on here and it was a wrap!
Re: SLA Pro driver question
Posted: Thu Jul 02, 2015 6:14 pm
by kenkenni
Can someone tell me what are all the components Chris-Allen used for the cross-over for his SLA build. Like maybe a shopping list. His design looks so much simpler and I would like to do my
cross-overs just like he has his.
Re: SLA Pro driver question
Posted: Thu Jul 02, 2015 8:14 pm
by BrentEvans
Don't overlook the Dayton PA-165. It's a near clone of the Alpha 6. It was my choice for my new rig, and we have used them in MANY many cabs with very few problems.
Re: SLA Pro driver question
Posted: Fri Jul 03, 2015 12:57 am
by Chris_Allen
kenkenni wrote:Can someone tell me what are all the components Chris-Allen used for the cross-over for his SLA build. Like maybe a shopping list. His design looks so much simpler and I would like to do my
cross-overs just like he has his.
Hi! All my components were the same as the plans, the only difference was that I used terminal strips. I recall reading on here that terminal strips weren't very common in the US.
Re: SLA Pro driver question
Posted: Fri Jul 03, 2015 7:37 pm
by kenkenni
Okay thanks! I like the fact of not having to solder even though my soldering skills are slowly improving.
Re: SLA Pro driver question
Posted: Mon Jul 06, 2015 1:08 pm
by kenkenni
Just a couple of questions as I get together the parts for this SLA build. What size screws are you guys using for securing the woofers and tweeters. Also can anyone who has bought the speaker grills from Reliable Hardware
tell me the exact dimensions they used for the custom grill and how much of a bend on all 4 sides?
Re: SLA Pro driver question
Posted: Mon Jul 06, 2015 2:06 pm
by Guitbusy
BrentEvans wrote:Don't overlook the Dayton PA-165. It's a near clone of the Alpha 6. It was my choice for my new rig, and we have used them in MANY many cabs with very few problems.
Is there a noticeable difference when compared to the recommended Alpha 6? I am vacillating on the drivers for a short set of SLA Pro's I want to make, and I eventually will add a regular set of SLAs. The choice I make now will go for both sets. I am frugal, but not against spending for the Alpha 6. When I see the price of the Dayton's my frugal side takes over...
Re: SLA Pro driver question
Posted: Mon Jul 06, 2015 2:31 pm
by BrentEvans
Guitbusy wrote:BrentEvans wrote:Don't overlook the Dayton PA-165. It's a near clone of the Alpha 6. It was my choice for my new rig, and we have used them in MANY many cabs with very few problems.
Is there a noticeable difference when compared to the recommended Alpha 6? I am vacillating on the drivers for a short set of SLA Pro's I want to make, and I eventually will add a regular set of SLAs. The choice I make now will go for both sets. I am frugal, but not against spending for the Alpha 6. When I see the price of the Dayton's my frugal side takes over...
There is no noticeable difference and only a minute measurable difference in frequency response. Phase response is different so you v shouldn't use them in the same array as alphas, though. One or the other.
This is in cab response in something that resembles a sla pro.
Re: SLA Pro driver question
Posted: Mon Jul 06, 2015 3:09 pm
by Guitbusy
That looks pretty definitive... I take it you use these professionally?
Re: SLA Pro driver question
Posted: Mon Jul 06, 2015 5:57 pm
by kenkenni
Any takers on my questions from above?
Re: SLA Pro driver question
Posted: Mon Jul 06, 2015 6:22 pm
by Bill Fitzmaurice
BrentEvans wrote:

This is in cab response in something that resembles a sla pro.
That response isn't possible, so I wouldn't trust those results. Something in your measurement protocol must have been way off.
Re: SLA Pro driver question
Posted: Mon Jul 06, 2015 7:16 pm
by Guitbusy
Bill, I am betting that your answer is to stick with the plans/recommended speakers and feel frugal in the fact that I am getting much more for my money...?
Re: SLA Pro driver question
Posted: Mon Jul 06, 2015 8:18 pm
by BrentEvans
Bill Fitzmaurice wrote:[qThat response isn't possible, so I wouldn't trust those results. Something in your measurement protocol must have been way off.
It's a full range cab measurement. Only applicable to 3.5k crossover point. Further, regardless of the calibration, it shows that the daytons and eminence are virtually identical. This is an averaging of several of each cab.