AlpineAndy

It's not just the speakers in the front stage that make it sound good, I have never the comps that you are running but I am sure that they can sound good. A proper Front stage is all in the installation and tunning.

All of the answer are above in bold Do I leave the subsonic filter at the lowest hz for channel 1 & 2, to keep it off? What is the optimal roll of for speakers, or how should I determine what setting I should use? appreciate ya maan The subsonic filters out anything below your set frequency just like your highpass filter does so it would have no effect unless you had it turned up higher than the highpass filter so just leave it alone. as for the roll off, I would just leave it at 12db slopes unless your speakers cant handle it and need a steep slope then switch to 24db, it is more of something that you will have to play around with and see which you like the sound of more.

All of the answer are above in bold

First off hooking the power and ground up backwards is stupid! even though I still dont see how that would cause a noise problem, it should have blown the power supply. I also want to state that I am not bashing the product. I think that it a very durable and well built product, It is obviously a solid amp if this ding dong can't blown it up. It was just not made to be used in competion SQ cars. Which is not what it is being used for in this case anyway.

Listen to all of the SQ cars that run them! Unless your hearing is messed up, I know alot of SPL guys that cant hear it.

Hate to tell you this but its in the amps, there is no getting rid of it. Paying $100 to send it in for repair is just a waste of money cause you will get it back with the same sound.

if it is a small faint hiss, I bet you still have it when you get the amp back from being fixed.

I dont think that the hiss that you hear is something that can be fixed.

Well I have been working on my car for about 2 weeks now and figured I should post up some pics of the build. The car is being built to compete in MECA's amatuer street SQ class. The car is not 100% done yet, it just needs to be made pretty and then I am set, but that won't happen before the comp. at Casper Saturday. Before I begin I want to say thank you to Mark at SSA (for one of the best sounding subs that I have ever heard), Jacob at Sundown (for some very well built amps), all of my buddies at SoundCheck (Goddie, Cooper, RP, Hank, and Ryan), and my team mates Marshall and Chris. Equipment being used is in my sig. Here are the pics in order (somewhat)

Small Update. The install hasn't changed or got pretty yet. I have two SSA Dcon 12's to put in it and now that I don

Looks good, is it a competition SQ car?

Nice setup!! I vote Zapco DSP6 but my vote is a little biased

Chris and I also did some good on the SQ side. Sundown I tearing things up in the MECA world from every angle! Chris Lacombe Sundown 100.4, Sundown 50.4, and Sundown E8 1st place - Street SQ 81.5/100 Andrew Mitchell (2) Sundown 100.4, Sundown 125.2 1st place - Amateur Street SQ 57.5/70 SQ PHAT car award SQ Best of Show

It's about time Brock, build is looking really good! I'm tuned in!

Good. car audio is fun,but it's not worth getting your self hurt!

I would not have cut that brace out of there. Your car has no structural support in the back now. very dangerous!!!

Nice score! You had one of the harder judges too. And I am guessing that the Paul you are talking about is Paul Davoren

with an o-scope you can find out what volume your deck clips at first, then you set the volume on your deck right below clipping. after that is done you move on to your amp and start to adjust your gain on it while monitoring the o-scope to make sure that you dont clip the amp.

Is this why a certain competitor is running a bunch of the 2 channels instead of a few 4 channels?

I will be at the MECA comp in E-town KY April 19th. Me and my buddy Chris both run Sundown amps for SQ so you can listen to both of our cars that day if you want.

Nice build! Good equipment!!!

x2, can't wait to see how it turns out.

Do we have to guess volumes and tuning ? Maybe somebody had some experience with 9917's and can figure out if the volume is ok for the power you have...but without some more info nobody can figure out exactly what happened. I remember reading about someone mechanically damaging an AQ HDC315 in one of Pete's designs. Too much volume for the power he had. You could take some pics of the subs after the damage, maybe that could give some clues. I remember that HDC3 also

my buddy hank runs mojos in his van. almost everybody at soundcheck runs them. here is a like to hanks van. BangInPink.com here are a few other videos of our cars with mojos SoundCheck.com

Picked up a few new toys today Here are some picks of my new reference system still in their boxes