06 Honda Civic build with 12" aq hdc4 and sundown saz-3500

Well, its somewhat of a build. But I finally got everything ready and should have the system done by this week.

It'll include:

- 12" aq hdc4
- An enclosure built by double 07 thats 2.5 cu ft net after displacement and tuned to 34 hz.
- Sundown saz-3500 amp
- Sundown sax-100.4 amp
- XS Power d3100 battery
- Knu 0 gauge ofc wire for power and ground(run of each)


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I shot some pics of my new knu wire against my old kicker hyperflex. I noticed the knu is much more flexible and from the looks of it, has more strands and less jacket than the kicker.

Attachment 26539071 kicker on the left and knu on the right
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Nice! Now we need vids after u get it in! Haha

If you need an extra D3100 for cheap hit me up @myjaja ;

Good luck i love my 2 hdc4 12.s

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Originally Posted by garretttt4

Nice! Now we need vids after u get it in! Haha

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Oh I will :)

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Originally Posted by Moler1129

If you need an extra D3100 for cheap hit me up @myjaja ;

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I really want your battery but I wont have any extra funds for a couple weeks now. Stupid speeding ticket. :(

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Originally Posted by NASTY08IMPALA

Good luck i love my 2 hdc4 12.s

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Oh trust me, I love these subs. I had two 12" aq hdc4's in my old honda and they were extremely loud. I was in the 50's off music with them. Hopefully I can at least do a good 145-147 with one of these in this car.

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Originally Posted by myjaja

oh i will :)



i really want your battery but i wont have any extra funds for a couple weeks now. Stupid speeding ticket. :(



oh trust me, i love these subs. I had two 12" aq hdc4's in my old honda and they were extremely loud. I was in the 50's off music with them. Hopefully i can at least do a good 145-147 with one of these in this car.

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slow your *** down and buy my battery! :d

Yea im hopin for a 50 myself jus need a new box what u do with ur 2 12 box for ur hdc4

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Originally Posted by NASTY08IMPALA

Yea im hopin for a 50 myself jus need a new box what u do with ur 2 12 box for ur hdc4

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It was built inside the trunk, so I had to break it apart to get it out to sell the poor car. lol

Yea i need to build a new box for them

More pics... I dont have too many. lol I always get caught up in the install and end up forgetting to take some.

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Ill take more pics of the final result and a video. Its actually pretty loud. I got major windshield flex and steering wheel flex along with bouncing windshield wipers. lol


EDIT: Ever sense adding the subwoofer rca's, I started getting engine noise through the door speakers? Why is that? Its off a pioneer 80prs.

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Originally Posted by myjaja

More pics... I dont have too many. lol I always get caught up in the install and end up forgetting to take some.

Attachment 26539133
Attachment 26539134
Attachment 26539135

Ill take more pics of the final result and a video. Its actually pretty loud. I got major windshield flex and steering wheel flex along with bouncing windshield wipers. lol


EDIT: Ever sense adding the subwoofer rca's, I started getting engine noise through the door speakers? Why is that? Its off a pioneer 80prs.

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Sounds like a ground loop.. check your RCA's and ground, you may have knocked one loose, or RCA's are possibly touching..
Going over RCA/Ground connections would be best (cheapest) solution. Make sure ish is plugged all the way in.
If everything's in completely/not touching... I'd say swap RCA's and see if that doesn't eliminate the noise. (Provided your grounds are solid.)

Edit: Maybe post some pics of your ground, where it's terminated & attached to the amp? Just my $0.02

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Originally Posted by its10v1

Sounds like a ground loop.. check your RCA's and ground, you may have knocked one loose, or RCA's are possibly touching..
Going over RCA/Ground connections would be best (cheapest) solution. Make sure ish is plugged all the way in.
If everything's in completely/not touching... I'd say swap RCA's and see if that doesn't eliminate the noise. (Provided your grounds are solid.)

Edit: Maybe post some pics of your ground, where it's terminated & attached to the amp? Just my $0.02

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The rca's were ran behind the radio two days ago but the other end was just sitting in the trunk waiting to get plugged into a sub amp. Well my highs amp sounded normal those two days until I plugged the sub rcas to the sub amp today. Thats when it started. But ill check my ground and the rcas. Thanks

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Originally Posted by myjaja

The rca's were ran behind the radio two days ago but the other end was just sitting in the trunk waiting to get plugged into a sub amp. Well my highs amp sounded normal those two days until I plugged the sub rcas to the sub amp today. Thats when it started. But ill check my ground and the rcas. Thanks

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Are you using two sets of preouts(2sets of RCA's)? Or a y-splitter(1set of RCA's split to two)?

Edit: or 1set input(to highs amp), one set output(from highs amp to sub amp)

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Originally Posted by its10v1

Are you using two sets of preouts(2sets of RCA's)? Or a y-splitter(1set of RCA's split to two)?

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The 80prs has 3 sets of rca's. Im using the front and rear for my highs and the subwooder for my sub. Its not being split, but I am running active.

Didn't see in the OP, but did you get a HO alt for your car to go with the system?