Testing results with DBM2 (splmeter.com)

 

Gold Member
Username: Somedonniedude

Illinois Braaap MX

Post Number: 2927
Registered: May-07
Picked up a dbm2 mic (the ones that used to be on splmeter.com), did some testing today with my 15" apx in just over 5cf tuned 34-35hz w/70sq in port on my aq2200d in the ranger. Sub up on passanger side with port forward behind the drivers seat. With voltage dropping into the low 12's the best score I got was 143.0 in the passenger kick with windows down playing young jeezy- white girl. I think I did a 140.x sealed on teh windsheild sealed up. My cousins 15" HDC3 copper did a low 142.x in the kick windows down on my old LA storm x1000d in a 4.5cf box tuned 37hz w/ 60sq in port.

I think sean and scott said these were about .5db off on the high and 2db off on the lows compared to a TL. Does anyone know if these read higher or lower than a TL?

Either way when I build this box it was inteded to be a loud daily street beater. Once it breaks in and I get full power going to it I will try a more SPL oriented box. I'm thought I would have a little higher numbers than what I do now, but hopefully that will happen over time. For now it has a killer low end and sound descent too. I'll try and get some pics when I get home tonight.
 

Platinum Member
Username: Insearchofbass

York, Pennsylvania

Post Number: 13149
Registered: Jun-04
"I think sean and scott said these were about .5db off on the high and 2db off on the lows compared to a TL. Does anyone know if these read higher or lower than a TL?"

high .5 in the mid 50's and 2 db low in the low 40's compared to the termlab
 

Gold Member
Username: Somedonniedude

Illinois Braaap MX

Post Number: 2928
Registered: May-07
Curious was is still around 2db low in the mid 30hz?
 

Platinum Member
Username: Insearchofbass

York, Pennsylvania

Post Number: 13153
Registered: Jun-04
Dunno my bro has my dbm2 for now but when he gets my netbook ill ask him to test the termlab and see
 

Gold Member
Username: Somedonniedude

Illinois Braaap MX

Post Number: 2929
Registered: May-07
That would be cool.
 

Platinum Member
Username: Insearchofbass

York, Pennsylvania

Post Number: 13208
Registered: Jun-04
My brother is going to be doing testing this weekend ill try to remind him to check the lower frequencies.
 

Gold Member
Username: Somedonniedude

Illinois Braaap MX

Post Number: 2930
Registered: May-07
That would be cool man, I appreciate it.
 

Platinum Member
Username: Insearchofbass

York, Pennsylvania

Post Number: 13211
Registered: Jun-04
Your welcome
 

Gold Member
Username: Talon01

Team dc audio, Pa Usa

Post Number: 2160
Registered: Jun-07
yeap testing this weekend. almost got the new box ready. i got about 2 hrs yet to finish the port then about 2 hrs to put the rear panel and resin it. for at least a testable box.
 

Platinum Member
Username: Insearchofbass

York, Pennsylvania

Post Number: 13213
Registered: Jun-04
Oh I didnt realize you were making a new box.
 

Platinum Member
Username: Insearchofbass

York, Pennsylvania

Post Number: 13257
Registered: Jun-04
Theres going to be a delay in testing the box still isnt finished.
 

Gold Member
Username: Talon01

Team dc audio, Pa Usa

Post Number: 2162
Registered: Jun-07
got most of it done tonight. it is testable now but to late now. i will test the box tuesday so i can 100 perc. finish it. all i gotta do is 1000grit sand it and then polish it. and yes this is a spl only box.
 

Gold Member
Username: Somedonniedude

Illinois Braaap MX

Post Number: 2932
Registered: May-07
lol making the spl box pretty huh?


So I gained over 1db by turning my box and re aiming my port, but cant leave it that way cuz the sub will rub on my seat. Looks like I know what way my next box will be firing.
 

Gold Member
Username: Somedonniedude

Illinois Braaap MX

Post Number: 2936
Registered: May-07
any update?
 

Gold Member
Username: Somedonniedude

Illinois Braaap MX

Post Number: 2939
Registered: May-07
Just did some more testing...

142.0 legal on the dbm2 playing young jeezy -old school chevy

same song 143.7 in the kick & 143.2 on the dash outlaw.

going to chop up the box and aim for 4.0cf @ 40hz.
 

Gold Member
Username: Talon01

Team dc audio, Pa Usa

Post Number: 2163
Registered: Jun-07
ok got some results for ya
35hz was down 3.2 from tl
40hz was down 2.6 from tl
47hz was doen 1.2 from tl
50hz was dead on and stayed ther up til 58hz
 

Gold Member
Username: Somedonniedude

Illinois Braaap MX

Post Number: 2940
Registered: May-07
Nice! Awesome man thanks much! now i feel a little better about my scores lol.


btw if anyones interested i chopped up my current box, brought it down to 4.5cf @ ~40hz. did a little testing...

Last box/ new box

sealed dash- 142.0/142.2
open dash - 143.2/144.2
kick 143.7/144.3

I didn't get to test very long today, I think I have another db left in this box.
 

Gold Member
Username: B3n07

Louisville, Ky USA

Post Number: 1183
Registered: Jul-07
try put on by jezzy it hits a little harder then white girls
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