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Davecubs14
01-03-2012, 06:44 PM
I may not have much to update right now but i'm making this thread to list my spl scores, gains, equipment used and get help/advice. And I have to thank my girlfriend for helping me with anything and everything possible. Just ask boomsday;)

I have not started on a strict burp box yet. But soon. Right now this is what i'm rocking...

2001 blazer s10
Pioneer DEH-P510UB
Atmos audio exo 15, box 4.5 cu.ft. tuned ~38
Audioque 2200d.
Xs power 5100 up front. 3100 in back.
330 Singer alt.
2 runs of ofc 1/0 wire. (Though they are cut up and connected at various points )
Big 3 in knu cca 1/0.
I will say....the exo is louder to the ear than my hdc3 was.

I think that's about it right now. I'm planning on running in meca, street 2 again this year.

Spl gains from today. I didn't do it at full power. Volume was @25 and I used a 100-20 hz tone each time.

At full volume - 144.3 @40hz before finding a few more .x dbs

All sealed - 135.5@55 hz
Driver door open - 137.4@38hz
Driver side triangle window open - 137.8@38hz
Both triangle windows open - 138.2@40hz
Passenger visor half way down - 138.3@40hz
Box 6" from hatch - 138.4@40hz
both mats hard side up - 138.5@40
Bracing the passenger door - 138.54@40hz

Lost on passenger door open.
Any other movements of the box.
both visors moved
just the driver side mat hard side up
any of the sunroof
bracing the hatch and the sides.

dragon.breath
01-03-2012, 06:58 PM
nice. let me know if you want to try some higher power testing. we will throw my saz3000d on it.

sacsking916
01-03-2012, 07:20 PM
:clap: nice one bro. tuned in for more results. have you tried glovebox open? rearview mirror turned? passenger seat moved all the way up and tilted, straight and leaned back. those are just a couple for ya to try out

Davecubs14
01-03-2012, 08:09 PM
nice. let me know if you want to try some higher power testing. we will throw my saz3000d on it.
That would be a very nice thing to do. Because in street 2, the max you can have is 3000 watts.

:clap: nice one bro. tuned in for more results. have you tried glovebox open? rearview mirror turned? passenger seat moved all the way up and tilted, straight and leaned back. those are just a couple for ya to try out
Thanks man. I need to do rearview mirror and steering wheel. I messed with the seats a lot. I know the visors are a no no for meca. I think the same goes for the glovebox...

---------- Post added at 07:09 PM ---------- Previous post was at 07:09 PM ----------

I'm also in the middle of doing a burp box for my massive dmx 15.

ahole-ic
01-03-2012, 08:29 PM
Dave, I have lots of blazer tips. I have the same one. Remember, low power testing is fine for finding your approximate peak but not much else. At full power your frequencies will change and the effects your tweaks have will too. Go test at full power and you'll see what I mean.

Davecubs14
01-03-2012, 08:37 PM
Dave, I have lots of blazer tips. I have the same one. Remember, low power testing is fine for finding your approximate peak but not much else. At full power your frequencies will change and the effects your tweaks have will too. Go test at full power and you'll see what I mean.

I'd love to hear some tips form another blazer owner:)

But yes, at full volume, it peaked @40
I tested at volume 25 because a few clicks below that and it peaked @55
After gaining the first 1.2 on low power, I tested it at full power and it went up 1.1 db's. So it seemed to be working.

ahole-ic
01-03-2012, 08:43 PM
I'd love to hear some tips form another blazer owner:)

But yes, at full volume, it peaked @40
I tested at volume 25 because a few clicks below that and it peaked @55
After gaining the first 1.2 on low power, I tested it at full power and it went up 1.1 db's. So it seemed to be working.
Are you sealed on the dash, cabin open in the kick, or cabin open at headrest?

Davecubs14
01-03-2012, 08:48 PM
Are you sealed on the dash, cabin open in the kick, or cabin open at headrest?

All tests except one was cabin open @ headrest.

ahole-ic
01-03-2012, 09:07 PM
ygpm

Davecubs14
01-04-2012, 05:05 PM
Thanks for your advice man. I'll try stuff out either way:)

SPL Blazer
01-07-2012, 09:23 AM
Is this a 4 door Blazer, or the 2 Door? Leather interior or cloth? I have the 4 Door model with the cloth interior and peaked at 51 Hz sealed at the glass and 53 Hz with the door open in the kick. We don't have MECA up here so I never tried it at the headrest, but I'd be surprised if the resonant freq changed that much from the glass to the headrest. Going from leather interior to cloth changes it a little too. Playing with the rearview mirror won't do much good either, when you play it at full volume the mirror tends to move, and eventually break off the glass....happened so many times now that I just pull it off during testing or burping.

Davecubs14
01-09-2012, 08:20 PM
Ok. Swapped the exo and hdc3 yesterday. Same box. Same speaker wires.

Didn't do much testing. But the hdc3 was a whole db louder than the exo. On a full burp, my voltage was a lot lower than when I tested the exo too. I could set the volume at 32 with no clipping. But yesterday, the highest I could go without clipping was 30.

Tested @ volume 25. The exo never reached 139.x's While the hdc3 did with just the door open.

I tested mainly the same things and got the same results. Just a full db higher. One thing I did try was lowering the back seats and nothing happened when I let the driver back seat down(when the meter was in the driver seat). But lost on the opposite back seat. The hdc3 also peaked @ 42 hz, 95% of the time. The exo, 40hz.

In the end. The exo is much louder to the ear imo. But the hdc3 got lower and moved my windshield more

Something else to add - My hdc3 is not the newer one. It has been beatin on for 3 years now

Davecubs14
01-09-2012, 08:22 PM
Is this a 4 door Blazer, or the 2 Door? Leather interior or cloth? I have the 4 Door model with the cloth interior and peaked at 51 Hz sealed at the glass and 53 Hz with the door open in the kick. We don't have MECA up here so I never tried it at the headrest, but I'd be surprised if the resonant freq changed that much from the glass to the headrest. Going from leather interior to cloth changes it a little too. Playing with the rearview mirror won't do much good either, when you play it at full volume the mirror tends to move, and eventually break off the glass....happened so many times now that I just pull it off during testing or burping.

2 door. I tested a little with the rearview mirror. Didn't really gain nor lost anything. I peak a few hz higher on the dash. And it's cloth on the inside. No leather:(

I also want to pick your brain sometime about the front stage of a blazer:)

SPL Blazer
01-10-2012, 01:03 PM
2 door. I tested a little with the rearview mirror. Didn't really gain nor lost anything. I peak a few hz higher on the dash. And it's cloth on the inside. No leather:(

I also want to pick your brain sometime about the front stage of a blazer:)

For my front stage I have a pair of 4" separates in the kick and 6.5" midbass in the factory locations in the doors, all RF Fanatic Q series and powered by RF Power series amps. I used to have them running through a Rockford EPX2 processor, but the bass kept killing it so I pulled it out.

Davecubs14
01-15-2012, 12:06 PM
http://i147.photobucket.com/albums/r295/davecubs14/Photo0621.jpg



http://i147.photobucket.com/albums/r295/davecubs14/Photo0638.jpg



http://i147.photobucket.com/albums/r295/davecubs14/Photo0641.jpg



http://i147.photobucket.com/albums/r295/davecubs14/Photo0644.jpg

SPL Blazer
01-15-2012, 12:16 PM
Is that a quad coil sub? looks like a lot of wire for a dual coil.

Davecubs14
01-15-2012, 12:19 PM
For my front stage I have a pair of 4" separates in the kick and 6.5" midbass in the factory locations in the doors, all RF Fanatic Q series and powered by RF Power series amps. I used to have them running through a Rockford EPX2 processor, but the bass kept killing it so I pulled it out.
Does the 4" ever get in the way since it's in the kick?

Is that a quad coil sub? looks like a lot of wire for a dual coil.

Yes sir! Quad 1 ohm;-)

SPL Blazer
01-15-2012, 12:28 PM
They do get in the way a little, but thats because I never made a kick panel pod before so it's a little bigger than it needs to be. If your on the passengerside it's bigger, but the driverside isn't as bad.

Davecubs14
01-15-2012, 12:36 PM
They do get in the way a little, but thats because I never made a kick panel pod before so it's a little bigger than it needs to be. If your on the passengerside it's bigger, but the driverside isn't as bad.

Got any pics?

SPL Blazer
01-15-2012, 03:00 PM
Got any pics?

I have some somewhere, I'll have to look around for them. It's 6 degree's outside so I'm not planning to go out to take any right now.

Davecubs14
01-15-2012, 03:43 PM
Dang, I don't blame you.

Ok.....so I tested a little bit. Wired down to .25 ohms, all I could manage was a 145.8...:(

Peak was @ 50

Davecubs14
01-15-2012, 08:07 PM
So after looking at my pages, it was almost completley flat between 40 and 55hz. Don't know if that's useful..

Davecubs14
01-21-2012, 02:55 PM
Ok. Cut the ports from 15.5 to 13 this morning. Lunch now, testing next:)

CAT MAN
01-21-2012, 03:29 PM
tuned in

Davecubs14
01-21-2012, 05:07 PM
Ok...so. I lost .2 dbzzz...Wired @ 1 ohm and .25. Lost .2 for each score.



But it's about 20 degrees colder than what it was before but then again my car warmed up....So before any changes, i'm going to make sure the ports are good and sealed and try again tomorrow. And it was also weird cause usually I gain about .7 when my rpm's is up, today, lost .4 everytime. Triangle windows? Usually gain .5, today, gained .1.....

Davecubs14
01-21-2012, 05:10 PM
Oh yeah, peak was @55

Davecubs14
01-21-2012, 07:50 PM
Trying out a different box in a few.....

I'm surprised this thread hasn't gained too much traffic. Usually more people jump all over stuff like this. Testing! Lol.

sacsking916
01-21-2012, 07:57 PM
Trying out a different box in a few.....

I'm surprised this thread hasn't gained too much traffic. Usually more people jump all over stuff like this. Testing! Lol.

in for more results.... its cause its in the SPL/SQ section.... nobody pays us no attention over here :crap:

Davecubs14
01-21-2012, 09:42 PM
in for more results.... its cause its in the SPL/SQ section.... nobody pays us no attention over here :crap:

That's all right. I stuck it in a prefab box. Got a 145.82. It's sub back, port back. With just the door open. No other variables.

Davecubs14
01-21-2012, 11:31 PM
Oh yeah, The peak was also the same for the prefab box too. 55 hz

Davecubs14
01-22-2012, 01:11 AM
how far away from birmingham are you?? I remember you from a meca show in Boaz, at wild bills. How does the season look for this year?? Anything around here?? i see alot of stuff goes on in tennesee but not so much in bama.


razorbackaudio1984
youtube

sundown FTMFW

Oh yeah, I remember you. I live about an hour from birmingham. Steve said there will be more postings by either next month or march. I'm planning on going up to tennessee quite a bit this year for shows. I'm running in street 2 this year. What class are you in?

Davecubs14
01-22-2012, 10:51 AM
umm, probubly AS2 again. Maybe S2, not really sure. Changed up the setup a good bit though since last year, so really not sure yet. lookin to have ho alt by the end of feb along with a battery or 2 for the trunk.

As long as your batteries meet the requiment for AS classes, you should be good. It's posted on the website. Something about the cca specs and dimensions.

Davecubs14
01-22-2012, 06:30 PM
My 2400 was about 5 years old and quit on me. I swapped out for xs power batts but for the price, look into cheaper stuff. They're good don't get me wrong. And yeah, my alt was the best addition to my system cause I don't drop below 14v idle.

So today. Took carpet off the top and front of the box. Ducked taped the sub. Moved the ground from the seat belt bolt to the battery.

The ground lost a lot. But all in all, I didn't really gain anything today cause I started with a 145.5 today. Hmmm....

Davecubs14
01-22-2012, 09:47 PM
http://i147.photobucket.com/albums/r295/davecubs14/Photo0649.jpg

hispls
01-22-2012, 10:06 PM
That's a depressing # for a 15". Have you tried changing aiming and position of the box? Good for 2db or more in my jeep just aiming the port variations.

Davecubs14
01-22-2012, 11:41 PM
That's a depressing # for a 15". Have you tried changing aiming and position of the box? Good for 2db or more in my jeep just aiming the port variations.
Tell me about it. I'm about to start all over again. I'm about to list everything I have and what i've done! Lol. Everytime I position it differently, i'll lose. Best set up is as far back as possible. So if yo're wondering how much I gain from moving all the way forward to back, it's around .5, .6. I'm about to take off my head liner and take off my 2nd layer of deadener and see what happens...

Davecubs14
01-23-2012, 09:38 PM
Here is a small list I made that could help with other things. Cause last year, I hit a 145.2 with my hdc3 in my daily box. Switched to xs power batteries and deadened things. Next comp - 143.3

2001 2 door blazer.
Metering @ headrest - Meca style
Max dimensions in back - 38W17H24D
Big 3 in knu cca 1/0 wire.
Xs power 5100 up front, 3100 back
2 1/0 runs to the back. One pos. One neg.
330 Singer Alternator.
Head unit - Pioneer DEH-P510UB
Amp - Audioque 2200d.
almost 50 sq.ft. of deadener on the doors.
2 layers on the roof.
1 layer on the hatch
passenger back side, covered about 40%. Inside panels as well.

Davecubs14
01-24-2012, 11:10 PM
http://i147.photobucket.com/albums/r295/davecubs14/399958_10150481726901862_631746861_9136433_2085711 037_n.jpg

8" port....we'll see!

Davecubs14
01-27-2012, 09:47 PM
So as I expected. My score went down because of my batteries. I charged them, burped it today, 145.96. Does it count as a 146!? Maybe...? No. Just turn it up a couple more clicks even if the red light comes on;) to get this.

http://i147.photobucket.com/albums/r295/davecubs14/Photo0654.jpg

And for giggles. Throw it in the kick!
http://i147.photobucket.com/albums/r295/davecubs14/Photo0655.jpg

Davecubs14
01-28-2012, 08:36 PM
Dave,

would you be willing to do some testing for me if i came to wherever you are with my setup?? I can hand you some cash in return for a little help from someone with a dang meter?? In your spare time of course. Only place that has one around here is a local shop and he charges 30 bucks just to get out the meter and let you play a few tones. PLus, its an AC meter, not even a dang termlab!!!

If not its cool man, just thought id ask

Nick
razorbackaudio1984

Yeah, I think we can work something out! The next comp is in florence. May....6th? Message me sometime and we can figure out a date and stuff.

Davecubs14
01-28-2012, 08:39 PM
So today, I took off the carpet of the prefab box, and you could see through EVERY crack. Hmmm....So I sealed it up. I noticed that one of the pvc pipes were loose so I sealed it up and tried the 4 4" ports again. Ports are 13" long.

Score!.....146.3! The slot port was still louder. It has ~64 sq in. port area. And the leaks sure didn't help it. So I think I need more port area 2 8" ports? Mhmm. Yes? Lol. Or a single 12!

Davecubs14
01-28-2012, 09:28 PM
http://i147.photobucket.com/albums/r295/davecubs14/Photo0657.jpg

Davecubs14
01-29-2012, 01:56 AM
Yup, no screws or anything. I wonder if these boxes can last more than a week!

Davecubs14
01-29-2012, 06:55 PM
Ok. Sealed the box, and rounded the slot port. Gained .2. Though my meter was acting funny. Either way, a gain is a gain. Sitting @ 146.6 now....and climbing:)

Davecubs14
01-30-2012, 10:26 PM
Got the 8" caulked and glued in its piece of wood! Hopefully i'll test it out soon this week! Freezefest will be here before I know it.

Davecubs14
02-02-2012, 09:09 PM
Tested the 8" port. The port is 15.5" long. With the 4 4" ports @15.5 long, they hit a 145.8. Guess the number.

---------- Post added at 08:09 PM ---------- Previous post was at 08:08 PM ----------

http://i147.photobucket.com/albums/r295/davecubs14/Photo0663.jpg

Davecubs14
02-02-2012, 10:04 PM
So sad this site doesn't pick up as much traffic on this topic compared to caco and csco.

But to the score!

145.1....managed to sqeeze a 145.17 out of it. Peak was also @53. Every other test peaked @55.

Davecubs14
03-16-2012, 12:01 AM
Oh wow. I haven't updated this in a while....Top news I have is.....With a prefab box, massive dmx 15 on an aq 2200d wired @ .25 ohms, best I could do was 146.7 at the headrest at freezefest. Amp's been all touchy wired to .25 now, would go into protect after the clip light lit up. But ran fine at .5 and 1 ohms

Highest I could get it before then, 147 flat. Picked a bigger amp. Haven't tested much with that. But did test with a sealed box. Peak freq? 39 hz. But next highest, by about .5, 55hz!
http://i147.photobucket.com/albums/r295/davecubs14/Freezefest%202012/431141_10151333680055072_805465071_23170440_109250 8884_n.jpg
http://i147.photobucket.com/albums/r295/davecubs14/Freezefest%202012/422386_10151337147095072_805465071_23188616_191047 8338_n.jpg

Davecubs14
04-27-2012, 07:10 PM
Ok. Finally got another test box built. Port is 18.5x6 and 25" long. Which gives it about 3 cu.ft net. with a tuning of 54. The port isn't sealed...well...with duct tape. Anywho. I haven't charged my batteries in like a month...and with no extra help from the interior, just the door open....And the box....just a box, not sealed really or rounded anywhere.

144.7 @49 hz.....a decent score, better than my other box so that gives me hope. Mind you this is my 3 year old hdc3 wired to 1 on a 3k amp, not the massive. I did a couple interior things later and pushed it past 145. I'm almost sure if I throw my massive sub in, I can get over a 147.5.

A weird side note, my sub hardly moved compared to my other boxes, it moved maybe a half an inch. The other box I had it in looked like it was going to bottom out....

Then I charged my battery, took the port and shrank the width to 4.25" from 6".

Score. 143.9@ 47 Hz. Almost a whole db down. My car loves 55 hz so i'll put the port back at 6" test with charged battery and then go out another .75" Then cut down the L shape port to try to get that peak up around 55.

Davecubs14
04-28-2012, 09:35 PM
So today. I went out, extended my port to 6.75" from 6", I hit a 145 even with my fully charged battery but then it leveled off to a 144.7, just kept getting a 144.7 so just to be sure it was just an off day, put the port back to 6" and the score dropped. Cause mind you it was a different time of day, temp, everything like that. I cut the port .5" at a time, and now have it 144.9 consistently. Best I could manage without moving interior things around was 145.1. Still peaking at 49.

I'm really itching to put my massive in there. Cause with all the gains i've gotten, I don't see why I can't hit a 148. We'll see;)

Davecubs14
04-30-2012, 10:18 PM
So basically. I cut another inch off in the port, score went down to 144.5 or something like that:( So that got me all depressed;) So I had to throw my massive back into my magic box. Scores.

Headrest.
http://i147.photobucket.com/albums/r295/davecubs14/539867_10151575645195072_1348108448_n.jpg

Kick.
http://i147.photobucket.com/albums/r295/davecubs14/527387_10151575648440072_805465071_24049146_103729 629_n.jpg