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Topic Review (Newest First)
04-25-2012 09:11 AM
Jma20a the mounting depth for the sub is 6 5/8", that's fairly deep for an 8" sub. the sub have a long excursion that helps tremendously with lower frequencies.
04-25-2012 08:17 AM
DaveStruggle Can the SA-8 V2 D2 SUNDOWN AUDIO fit in the Infinity enclosure of the JK 2012......It seems to be a great sub ,paired with Alpine PDX 5 too....
03-12-2012 10:12 PM
pjfargo Well I'm kinda doing the same route as 2 of you, but for an older TJ. I just put the HU in tonight because I couln't deal with no tunes (Alpine CDE-123). It replaced a 10+ year old Alpine. I have a PDX-5 (birth says 90 and 449 rms) sitting on my desk waiting for speakers and some more free time. Unfortunately I have to stuff Alpine SPR-50C woofers in the dash as 60C won't fit. Tweets will go near the floor. But I've drawn up the plans for a 3 chambered (seperately sealed) box with the 60C's and the SWR-823D for the back. shall sit on the hide a trunk and work great with the seat down. With the seat up the speakers are hidden. I don't cary extra pax often. Box outer dimensions are 36"x11.5"x6.5" using .75"mdf. 3.75" on each side will not be sealed and will use that free area for the tweets and to bolt her down to prevent easy theft.
In my case the 2 Ohm 8"sub was the best choice, because it uses less battery juice to drive if I understand it all. Upgrade wise it would be easier to have 2 2 Ohm subs than a pair of 4 Ohm subs I think.
My present fried speakers are all Polk. Pair of 5" in front and 6x9's in back. Sounded alright till my son got a hold of them.
03-06-2012 09:43 PM
fishmd I just bought the dual 4 ohm sub. Fits well with a 3/4" spacer I made out of MDF in the stock enclousre. I am power it with the Alpine PDX-5 amp, along with the other speakers. I am going to wire it into a 2 ohm load.

Slowly all coming together.
03-06-2012 02:33 PM
Jma20a with a duel 2 ohm sub you can wire it down to 1 ohm, lower ohms ohms the less resistance and easier it is to power. so go with a duel 2 and find an amp that is stable down to 1 ohm, and rated around 350-400 rms at 1 ohm.

i would suggest going with a more stable sub than that.check this sub out, it is built like a tank, cost less, puts out more power. this sub is rated at 500 watts rms and can handle 650 watts with no problem.

SSA Store - Sundown Audio SA-8 Subwoofer

and either way you go this amp will do the job, and do it right. it can run at 550 watts without any issues.

http://www.soundsolutionsaudio.com/s...Amplifier.html
03-06-2012 02:09 PM
Phishe
Alpine Sub

2012 JK, came with the Infinity system. I'm slowly but surely replacing the sound system. I've replaced my soundbar speakers (Alpine SPS-610), front speakers and tweeters (Alpine SPR-60C). Now it's onto the sub. Staying with Alpine to maintain consistency.

I'm looking at these two subs:

Alpine SWR-823D Type-R 8" subwoofer with dual 2-ohm voice coils at Crutchfield.com

Alpine SWR-843D Type-R 8" subwoofer with dual 4-ohm voice coils at Crutchfield.com

The only difference that I can tell is that the 823 has dual 2 ohm voice coils and the 843 has dual 4 ohm voice coils. Does it make a difference? They're the same price, so I just don't know which one to go with.

Right now I'm still running with a stock head unit and amp, but the future will include upgrading both of them. Thoughts, anyone?

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