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View Full Version : Alpine SPX-f17t 3-way crossovers - need suggestions



mcsoul
04-06-2009, 11:39 PM
Let me introduce you to my 2 new friends, Alpine SPX-f17t 3-way crossovers.

They are beefalicious; if loving them is wrong, I don't want to be right. Is it wrong to dryhump a crossover?
Each one is the size of my Audison lrx 2.150 amp.

Here is one of them:

http://i6.photobucket.com/albums/y219/kazakovi/audio/DSC_0289.jpg
(sellers pic)

I'm not 100% sure of the plan yet; but here's what I was thinking:


Peerless 851123 CSX 6-1/2" Woofer 4 Ohm
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=299-042

Dayton RS100-4 4" Reference Full-Range Driver 4 Ohm
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=295-378

SEAS Prestige 27TFFNC/G (H1396) 1" Textile Dome Tweeter
http://www.madisound.com/catalog/product_info.php?cPath=45_229_324&products_id=1466

But at the same time I'm thinking maybe I should go a little
higher end and try to do these things more justice.

mcsoul
04-07-2009, 10:15 PM
bump

RowJoe
04-07-2009, 10:25 PM
This is a setup I'd like to do in the future:

Woofer/Midbass - http://www.madisound.com/catalog/product_info.php?cPath=45_228_256&products_id=8234

Mid - http://www.madisound.com/catalog/product_info.php?cPath=45_228_256&products_id=8181

Tweet - http://www.madisound.com/catalog/product_info.php?cPath=45_229_250&products_id=633

The new ID OEMs look pretty dang **** and their specs are superior to the previous OEMs. Too many good drivers out there for someone on a low budget like me. =/

mcsoul
04-07-2009, 10:30 PM
This is a setup I'd like to do in the future:

Woofer/Midbass - http://www.madisound.com/catalog/product_info.php?cPath=45_228_256&products_id=8234

Mid - http://www.madisound.com/catalog/product_info.php?cPath=45_228_256&products_id=8181

Tweet - http://www.madisound.com/catalog/product_info.php?cPath=45_229_250&products_id=633

The new ID OEMs look pretty dang **** and their specs are superior to the previous OEMs. Too many good drivers out there for someone on a low budget like me. =/


You don't see too many setups where the mid is a 7" and the woofer is a 6.5":eek:

I bet it will be nice though.

I think my crossover points are 400hz and 4000hz.

RowJoe
04-07-2009, 10:39 PM
From what I've read, the SLS does great on midbass duty up to 400hz I believe, although I may be wrong on that particular number. They're also priced reasonably, which helps. They'd probably go in my doors, so 6.5" works great for me. The ER18NX seems to reproduce the type of sound I like from what I've read. I was thinking about making a custom enclosure for them, oh yee. But yeah, the size thing didn't cross my mind before. :laugh:

Oh snap, just noticed the 6.5" SLS is out of stock. They run about $90/pair I believe.

SSS 18734
04-07-2009, 11:05 PM
I think you should stick to a 2 way setup.

mcsoul
04-07-2009, 11:22 PM
I think you should stick to a 2 way setup.

Me too, this would be for the wife's Honda.:)

James Bang
04-08-2009, 12:41 PM
What HU will be in the wifes car?

I'd suggest you use every input, which would need a lot of channels of amplification. Individual level/gain control for each channel would be nice.

mcsoul
04-08-2009, 01:52 PM
What HU will be in the wifes car?

I'd suggest you use every input, which would need a lot of channels of amplification. Individual level/gain control for each channel would be nice.

But to get started I was going to use the 100wx2 VGA 100.2 some dude on the
forum sold me:)

I want to know what drivers! I'm now thinking Dayton 7", Dayton 4", SEAS 27 fabrics.

The HU and SEAS will come from my car. That way I can justify a 9835 and Illuminators.

bass_lover1
04-08-2009, 02:11 PM
Why not go all dayton and use the RS28 instead of the Seas tweeter?

James Bang
04-08-2009, 02:27 PM
I might have some extra pieces of those goldens bars for those xovers if you need.

what locations will you use for the speakers?

mcsoul
04-08-2009, 02:53 PM
7" in the doors, 4" in the kicks, tweeter stock location reflects off the
window (may not be to good). I have to get the door panel off to see
what I'm working with; All three in the door in a linear array would be my
first choice.

I do need two of the gold bars, the mid section, on the upper left, of both
crossovers have no bar.

mcsoul
04-08-2009, 02:56 PM
Why not go all dayton and use the RS28 instead of the Seas tweeter?

Thassa a big expensive tweeter!
I already have the seas and I want better for my car:laugh::laugh:

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=275-135

James Bang
04-08-2009, 03:03 PM
that's not expensive..

this is:

http://www.madisound.com/catalog/product_info.php?products_id=1581

tez4life
04-08-2009, 03:22 PM
that's no expensive..

this is:

http://www.madisound.com/catalog/product_info.php?products_id=1581


:eek:

FoxPro5
04-08-2009, 03:49 PM
that's not expensive..

this is:

http://www.madisound.com/catalog/product_info.php?products_id=1581

Pfft...http://www.madisound.com/catalog/product_info.php?products_id=1039

How about the slops on those xovers? And you think those are the aforementioned points, or they are?

Stay two way up front, run your MB up to 4-500hz or so and then a widebander on up like suggested. You can get those Peerless 3's for cheap or look at the CSS FR's.

mcsoul
04-08-2009, 05:11 PM
Pfft...http://www.madisound.com/catalog/product_info.php?products_id=1039

How about the slops on those xovers? And you think those are the aforementioned points, or they are?

Stay two way up front, run your MB up to 4-500hz or so and then a widebander on up like suggested. You can get those Peerless 3's for cheap or look at the CSS FR's.

The pdf manual for the component set *****, it never lists the crossover points or slopes. It does have a response graph for the drivers, but it is to fuzzy to tell 100%.

http://vault.alpine-usa.com/products/documents/OM_SPX-F17T.PDF