bobwires Posted January 15, 2012 Report Share Posted January 15, 2012 I have a couple of trucks at any given time, and I don't want to cut any of them right now. I want to set up a real SPL system, because I have never done one, and there literally isn't anything over 145 db in my town. How loud can I get with a bandpass through the slider window? I can use all of the port area the sliding glass window will allow, and stick an accordion boot on it with some sort of goo that wont harden so I can clean it out. I'll use 1 big alt and 2 big batteries, no more. I'm looking for a 155 maybe. Unless you think I can get more. I'm looking for input on number and diameter of subs for that kind of area - 4 15's? I'm a DD dealer, so I'd probably go with 9515's and a pair of M4's. I'll start messing with designs at some point and run it by you pros on here to see how to improve it before I go. I'd just like some help up front. thanks in advance. Quote Tuani Fabrication Wasilla, AK Link to comment Share on other sites More sharing options...
bobwires Posted January 16, 2012 Author Report Share Posted January 16, 2012 .....Seriously? You can't tell me this has never been done before. Quote Tuani Fabrication Wasilla, AK Link to comment Share on other sites More sharing options...
CJ18 Posted January 16, 2012 Report Share Posted January 16, 2012 I wouldnt hold my breath waiting for a 155. Quote Link to comment Share on other sites More sharing options...
bobwires Posted January 16, 2012 Author Report Share Posted January 16, 2012 That's the spirit! ..... I just read Ray's thread - hit 153 with 2 12's. If I can't hit 155 with 4-15's I'm retarded. Quote Tuani Fabrication Wasilla, AK Link to comment Share on other sites More sharing options...
Ray Posted January 17, 2012 Report Share Posted January 17, 2012 Dont compare my burban freak to a truck But i think its fine Id go 4th order with 95's Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
bobwires Posted January 20, 2012 Author Report Share Posted January 20, 2012 Dont compare my burban freak to a truck But i think its fine Id go 4th order with 95's I know your SUV is insane..... not likely to get there, just dreaming. Why 4th over 6th? Just ease of design, or do the 95's do well in a 4th? I've always rolled with the notion that a stiffer suspension is better suited to 6th order, and figured they don't get much stiffer than a 95. I honestly have built twice as many 6th orders as I have 4ths, mostly experimenting to see what responses I could get. I have never done a common tuning on a 6th. I'd like to try that at some point. I'll build a small bandpass and plug in in the same space and check with the RTA to see what to shoot for. Quote Tuani Fabrication Wasilla, AK Link to comment Share on other sites More sharing options...
n8ball2013 Posted January 20, 2012 Report Share Posted January 20, 2012 I dont know how well a 4th would perform with 95s. Ray knows more about this than I do though. Id think you'd need more juice for two m4s though. unless those are really BIG batts. Quote THERE IS NO BUILD LOG! 1998 Chevy Silverado ext cab Alpine CDA-9887 4 Team Fi 15s 2 Ampere Audio TFE 8.0 2 Ampere Audio 150.4 3 Digital Designs CS6.5 component sets Dual Mechman 370XP Elite alternators inbound! 8 XS Power d3400 6 XS power d680 Second Skin Stinger Tsunami Wiring Sky High A Real Voltmeter not a piece of shit stinger. Link to comment Share on other sites More sharing options...
AA98hoe Posted January 20, 2012 Report Share Posted January 20, 2012 Hmmmmm op you built a lot of 6th orders but never a spl system..... like n8 said...if your restricting your voltage an amperage then your restricting your dbs...I've ran 9515s an m4s.the m4 is a awesome amp but can draw in upwards of 500amps.... id go at least 4 batterys and more.. glwb Quote TEAM DC AUDIO VEHICLE:98 chevy tahoe 2wd 3-4 drop HEADUNIT:alpine 9886 PREAMP:arcaudio FRONT STAGE:4-6 1/2s selinium,DD component set and 4-selinium tweeters in each door KICKPANELS:jl audio 5 1/4 REAR DOORS: dd components 6 1/2s HIGHS AMPS:zapco 750.2 on front doors,zapco an another 750.2 on kicks and rear doors SUBS:4-ascendant audio 18s with 5 spiders in a custom box built by KINGSUV SUB AMP: 2-dc7.5s ALTERNATORS: 3-mechmans 1- 425comp, 1-smd spec350, 1-270 with adj voltage harness on custom dc bracket WIRE:10-runs 0g front to back BATTERIES:6-d1400s TL results:157.1 at 38hz and 156.8 at headrest score @37hz. STATE AND NATIONAL RECORD IN MECA S5. Link to comment Share on other sites More sharing options...
bobwires Posted January 20, 2012 Author Report Share Posted January 20, 2012 (edited) Hmmmmm op you built a lot of 6th orders but never a spl system..... That's why I'm asking. I want to know the method, theory, etc - not just a quick answer. Id think you'd need more juice for two m4s though. unless those are really BIG batts. I'm planning a pair of Odyssey 2250's because they'll fit under the hood. I could throw 1500's (stock mounts) under the hood and another big pair in the back, I suppose. Edited January 20, 2012 by bobwires Quote Tuani Fabrication Wasilla, AK Link to comment Share on other sites More sharing options...
Autruche Posted January 20, 2012 Report Share Posted January 20, 2012 Could always just remove the whole rear window and have all the room for port that you'd need. If done carefully you will not damage the vehicle in any way other than simply needing a new seal for the rear window when it is replaced. Something similar to what Hank did with his 48 10s build. Unless that is what you intended on doing in the first place and I just didn't understand the way you wrote it. Quote Need Test Tones/Sine Waves? Click Here!My Saab 9000 build1993 Saab 9000 Aero 5spdPioneer - Zapco - Hifonics - Sundown Audio - O2 Audio - RE AudioJust Say No To Rear SpeakersJust Say No To CCA WireReal Men Drive StickHit me up on Facebook, if you want Link to comment Share on other sites More sharing options...
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