IH8PunkRok Posted July 30, 2009 Report Share Posted July 30, 2009 2.5 cubes after displacement, tuned to 38 hz, 1400 watts rms, DD 3512e. the problem is odd. between say 30 and 40 hz the sub does great. lower than that it produces very little sound and above 40 hz the sound decreases dramatically and is almost non-existent around 80 hz im baffled because i did no setting changes from my CVR's to this sub and the CVR's had a fairly flat response. so wuts goin on here? today is the first day ive played it too if that matters -Matt2005 Dodge Magnum RTJVC KD-AVX1 2 PPI S580.2 Obsidian Audio ST1 Horn Tweeters PRV 8MB450s Audio Legion 3500.1D 2 RE MT 18s 360 ah LiFePO4 BatterySHCA 2/0 155.2 @ 29 hzKicker CVR 15's buildDD 3512e buildMini T-Line Build(6) 8s BuildNightshade 15s Wall BuildMagnum AB XFL 12s BuildNewest Magnum Build Link to comment Share on other sites More sharing options...
Boon Posted July 30, 2009 Report Share Posted July 30, 2009 Double check your amp settings. 10.x volts fo' life! Link to comment Share on other sites More sharing options...
loburbon Posted July 30, 2009 Report Share Posted July 30, 2009 also how much port area you got 2000 gmc yukon 4 sundown Zv3 15's 4 dd m2a's kenwood kdc-x994 2 batcap 4000's 1 batcap 2000 dual alts. 154@37hz and climbing http://www.cardomain.com/ride/3231683 http://www.myspace.com/torque150 Link to comment Share on other sites More sharing options...
creyc Posted July 30, 2009 Report Share Posted July 30, 2009 You sure of the tuning? What are the port and box dimensions? DD subs tend to do pretty well below tuning frequency, it's possible it's tuned higher than you expect... 2001 Chevy Blazer (2) SAZ-3000Ds (2) custom 18" Madmax subs in a second row wall Rockford 600-4 Pioneer PRS components Pioneer P800PRS deck Link to comment Share on other sites More sharing options...
IH8PunkRok Posted July 30, 2009 Author Report Share Posted July 30, 2009 the box outer dimensions are as follows. 34" x 14" x 15" port is 12.6" x 3" x 20.5" (+ 1.5 end correction so 22") the port area is 14.9" per cube heres the calc i used i hope its the amp cuz thats easily fixable and its honestly wut it reminds me of. like the low pass got fucked with. cuz its such a steep cut off -Matt2005 Dodge Magnum RTJVC KD-AVX1 2 PPI S580.2 Obsidian Audio ST1 Horn Tweeters PRV 8MB450s Audio Legion 3500.1D 2 RE MT 18s 360 ah LiFePO4 BatterySHCA 2/0 155.2 @ 29 hzKicker CVR 15's buildDD 3512e buildMini T-Line Build(6) 8s BuildNightshade 15s Wall BuildMagnum AB XFL 12s BuildNewest Magnum Build Link to comment Share on other sites More sharing options...
oldschool Posted July 30, 2009 Report Share Posted July 30, 2009 everything seems right check your amp settings and adjust accordingly if that is not it double check your box joints and port joints for flexing and leaking. TEAM GROUNDPOUNDERS INC. 156.5 OUT THE TRUNK OF A 95 CADDY W/1 SUB & 2AMPs score done on a termlab mic in the kick on the dash sealed was 154 Link to comment Share on other sites More sharing options...
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