Derrick824

http://www.competitiononly.com/ http://www.competitiononly.com/show%20flie...%20mAR%2008.jpg http://www.competitiononly.com/show%20flie...%20May%2008.pdf

what are they tuned to............................... Mine is tuned to 36hz and plays music great. Its defintely not a fart box.

I tried subs forward & ports up this afternoon and lost 1db. So I tried it with the mic in the kick and still lost 1db compared to subs up & port back. was your box all the way back to the rear window ? passenger seat all the way forward ? passenger visor 1/2 way down - glove box open ??? Yes No No

I tried subs forward & ports up this afternoon and lost 1db. So I tried it with the mic in the kick and still lost 1db compared to subs up & port back.

Our two local organizations are NSPL and Competition Only. If I can gain 2db I'll work out some kind of way to change this setup. Ford302, yes I'll be at the show May 10th in Andrews, SC.

The amps are strapped. I'm not sure if I can fit subs forward, ports up. Everything must stay below the window line which is only like 15.25" in my Explorer. The subs might make it but the ports won't.

More pics. Next to one of my Fi Bl 18s.

i find it interesting that it needed additional cooling. I run one at 2ohms and it doesnt even get warm....I mean barely noticible it is even running warm. Very impressive amp to say the least. I imagine at 1ohm it might be a different story but man it runs colder than anything else I have ever used. Its more overkill than a requirement. Even at 1ohm my 1500s barely get warm.

These will be the new heatsinks, right?

Today I was doing some testing on a new setup and I got some incredible #s out of my Sundown 1500d. It was running @ 0.5ohm pushing a pair of d2 Kicker cvr 15s. A 50hz test tone was used. The output voltage was 42.2v and the clamp meter read 64.1a of current output. Thats 2700watts w/ rise to 0.65 ohms. I couldn't believe it so I moved the clamp and dmm to the input side and got 315a of current draw w/ voltage dropping from 14.3v to 12.8v. 315a * 12.8v = 2700watts of ouput @ 67% efficiency. Am I doing this correct? I'm completely astounded to see 2700watts out of a single 1500d. In case anyone's interested, the setup hit a 147.3 on a TL legal, sealed, mic on the windshield. I'll post a vid up as soon as it uploads.

Will Sundown have a booth in Daytona and/or bringing any products down to show off or sell? I'd like to see these new Nightshades in person.

The ouput #s (volts and amps) were read at the exact same time then the meters were moved to the input side and both voltage drop and current draw were measured at the same time. These were back to back tests and both hit a 147.3 on the TL. Also those ouput #s were my peak #s. The clamp was set to hold max and the voltage ouput was the first # I saw pop up on the dmm.

Both the dmm and clamp are made by Craftsman. I don't doubt that they aren't perfect.

Just the TL. The signal looked as good as it does in the vid above. The only difference was the test #s were w/ a 50hz tone and in the vid I peaked w/ a 45hz tone.

Here's the vid. http://s18.photobucket.com/albums/b126/der...ent=cvr1473.flv

Any idea how soon this model will be released? Since my upgrade to three subs I'm in need of more power and would like to stay Sundown. I'm limited however to a pair of amps that have no more than a 750watt power rating @ 4ohm and 200a max rated current draw each. The 2000s should fit perfect. I'm looking to upgrade this summer in about three months or so. Will they be out by that time.

I mainly compete locally here in SC with Competition Only. They're a small/local group. www.competitiononly.com I'm the one in the bottom row wearing the camo jacket. They use old school 4ohm ratings for their classes. Last season I competed in Truck/Suv 501-1500. This season I'm doing primarily Street Bass (identical to BassRace). I was wanting to jump back into the 501-1500 class but if I upgrade to a pair of 3ks then I'll end up doing Street Bass and probably a hardcore class. My bro will be in Truck/Suv 1501-up so I don't want to go into the same class as him. I've also been thinking of making my way up to NC to hit some NSPL shows. There I'd like to compete in the Truck/Suv 31-60" class but I'm limited to a pair of amps with a max fuse rating of 200a each. I'd love to compete with some other organizations like BassRace, Usac, or Meca but there aren't any events around here.

It looks like I'll just have to upgrade to a pair of 3000s then and change up classes. It won't hurt me this season, but I'll have to rethink what class(es) I want to do next year.

For amps that are strapped, is it a little different since the positive from both amps are used? The clamped amperage of the amplifier connected to my positive terminal was 48.6. The AC voltage was 37.5. That = 0.77 ohms but that has to be per amp, right? That also = 1822watts of power. If that is per amp then thats 3644watts of power with rise up to 1.54ohms at about 67% efficiency.

How do I measure it? I have a pair of 1500s strapped on three Fi Bl 18s (dual 2ohm) in a series/parallel configuration. I've already clamped the amplifiers and they are pulling 460a of current, voltage drops from 14.4 to 11.8, and resting resistance is 1ohm. What else is there?

http://www.competitiononly.com/

Yes, but thats 3 18s now.

I'm still around. The easiest way to get my attention is a PM.

I want to extend an offer over here to the Sundown guys. I've been doing decals over at Meade's forum for a little bit now and thought ya'll might like some of these. They're ridiculously cheap at $1 each (minimum order of two) which mostly just covers my cost of materials, shipping, & PayPal fees. Tell me what you think. Here's a link to my for sale thread over there. http://www.*****.com/board/ind...=14109&st=0 Here are my refs. http://www.*****.com/board/ind...showtopic=14748 P.S. I love my Sundowns!

Don't worry about signing up over there. The links were just to show examples & references. I don't mess with aim but I'll pm you my info.