Trying to complete the system

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altima311
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Trying to complete the system

Postby altima311 » Mon Jun 09, 2008 3:46 pm

Hi everyone,

I'm trying to figure out how to set up the system.
I have a 2000 Subaru outback wagon.

I have an old autotek sx 475 essentially a 4 channel amp (75 x 4 @ 4 ohms)

it'll do 200 watts x 2 at 2 ohms bridged and i just purchased a set of alpine type r components. basically i want to have a nice sql setup. i was thinking of about 500-700 watts of bass and just using the autotek for the comps.

i was looking at an alpine type-s 12 dvc and a jl audio 500/1 amp but im not too sure any recommendations would be helpful. also a box design sealed or ported, not too sure. i've never ported a box before but i have made a sealed box.

im also planning on dynamatting the car in its entirety
2000 Subaru Outback Wagon
5-spd

Alpine CDA-9815
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Nigel
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Postby Nigel » Mon Jun 09, 2008 4:48 pm

you could even do the type r components off of channels 1&2 of the 4 channel so that they get 75 watts per side and bridge channels 3&4 to a single 12" sub in a ported box.

you could even go with the Alpine type S 12 (sws-1243D) and hook the voice coils up in parallel and that way it'll get 200 watts.

Put it in a 1.5 - 2 cubic ft. box tuned to ~32-35 Hz.

Nigel
'03 S-dime ext. Cab.
Dropped 3" all around
Shadow billet grill
De-Trimmed/De-Badged
18" Beyern Type Five's in Hyper Silver
Nexen N3000 245/45ZR18 rubber
Eurolite clear tails
clear corners
Truxedo Truxsport Tonneau Cover

Alpine CDA-7998 source unit
Clarion SRS 1686 6.5" comp set up front
OZ Audio ME 12.4 in a 2 cube ported box at 34 Hz
JBL GTO 601.1 II Sub amp
JBL GTO 75.2 II comp. amp
12 sq. ft. Dynamat Extreme on roof
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altima311
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Postby altima311 » Mon Jun 09, 2008 5:41 pm

that could be an option, but i think i would like a little more wattage about the system, 75x2 seems a bit low for the type-rs i really want to try and get the most out of the entire system, itll be loud but still keep the sq
2000 Subaru Outback Wagon
5-spd

Alpine CDA-9815
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BASS
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Postby BASS » Tue Jun 10, 2008 9:11 pm

Im running 75 x 2 to my type r comps and they freaking SCREAM! add them to the 600 watts to my type r 12 and it gets crazy loud and sounds pretty damn good at the same time in my mazda 3 hatch.

my box is 1.3 cubes at 30 hz (factory specs) and it sounds pretty good. I'll prob rebuild it later on, but for now its getting the job done quite nicely. like I said, it gets crazy loud for everyday listening.
2004 Winning Blue Mazda 3s hatch
2.3L zoom zoom
HID Xenon headlights
Navigation
17" rims

stereo DONE!

Alpine iDA-X200, Alpine PDX 2.150, Alpine PDX 1.600, Alpine Type-R 6.5" comps, Alpine Type-R 12" ported.

the voices in my head tell me you're crazy
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altima311
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Postby altima311 » Fri Jun 13, 2008 9:05 pm

-UPDATE-

Well I got my speakers in and I temporarily installed them to test them. I set them to be bridged 200 x 2 @ 4 ohms.

I dont really understand how this is possible because when you bridge an amp doesnt it lower the impediance?

Also, the speakers have a seven level tweeter adjustment...right now i have it set to 0 db, it goes all the way to -7 db. This adjustment im not too familiar with.

As far as the sub and sound insulation, i will be doing soon alpine type-s 12 dvc and a pdx 1.600
2000 Subaru Outback Wagon
5-spd

Alpine CDA-9815
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KU40
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Postby KU40 » Fri Jun 13, 2008 11:27 pm

no, bridging doesn't lower impedence. If you have a 4 ohm sub, the amp will see 4 ohms whether you put it on one channel or bridge two together.

As for the tweeter adjustment, it attenuates the tweeter. Usually tweeters are more efficient than the mids in the set so it's nice to be able to dial them back to better match the two.
-Nick aka NS1 aka mopey aka speedbump
Alpine CDA-9827
Crossfire CFQ5.2
JL Audio XR 650csi components, Planet Audio TT2300
Crossfire VR404 on factory rear 6x8's until I get them upgraded
SI 15D2 + 3.8 @ 30 hz + Crossfire BMF 1000D = :)
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altima311
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Postby altima311 » Sat Jun 14, 2008 7:01 am

yeah i did notice that the tweets are much louder than the mids i think im going to attenuate them a bit.
2000 Subaru Outback Wagon
5-spd

Alpine CDA-9815

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