keepinitloud Posted September 16, 2009 Report Share Posted September 16, 2009 you have dimensions of what will fit use a box calculator i've seen the guys using on here ask around here on the site for the one they are using. you wan't to fire the box forward seal the edges of the box off from the trunk subs passenger side of box port on the drivers side as far as port tune the box calculator should help build the box with the spl port then design poert that will work for music Quote 06 chrysler 300C Hemi one mmatts dreadnaut 15 powered by a planet audio vx 2200d fosgate p200 running planet audio 8" midbass drivers and super compression tweeters stock battery and a stinger spv44 Irragi 300 amp alternator big 3 1/0 http://www.stevemeadedesigns.com/board/topic/55075-system-in-my-300c/page__view__findpost__p__763656__fromsearch__1 Link to comment Share on other sites More sharing options...
Boon Posted September 17, 2009 Report Share Posted September 17, 2009 Build a new box with a 6" aeroport, have 2 lengths of pipe so you can change tuning between SPL and daily. Quote 10.x volts fo' life! Link to comment Share on other sites More sharing options...
77-AUDIO Posted September 17, 2009 Author Report Share Posted September 17, 2009 you'll need a comp box, and daily box...if your cars frequency is in mid 50's and your box is tuned into the 30's, there's your problem. My box is tuned to 34 htz. And at one of the comps I went to I did a sweep from 10htz to 100htz and they said the optimal frequency was 51htz. Thats where my system maxed out at, and the DB's started dropping off. Quote PPI dbl dinDC Level 31.77cubes net tuned to 33htz.DC audio 2.0kCT Pro Audio 8" in front, 6.5 in rear Link to comment Share on other sites More sharing options...
Polecat Posted September 17, 2009 Report Share Posted September 17, 2009 now you know where you peak, now build accordingly. When you start low, like 30hz and do a sweep up, you heat coils and loose voltage. So imagine hitting it at the tuned frequency Quote Behind every great man....is an underwear tag! Link to comment Share on other sites More sharing options...
77-AUDIO Posted September 17, 2009 Author Report Share Posted September 17, 2009 now you know where you peak, now build accordingly.When you start low, like 30hz and do a sweep up, you heat coils and loose voltage. So imagine hitting it at the tuned frequency That why on my second run I purped 49, 50, 51, 52, 53 htz so what should i tune my box to for comps Quote PPI dbl dinDC Level 31.77cubes net tuned to 33htz.DC audio 2.0kCT Pro Audio 8" in front, 6.5 in rear Link to comment Share on other sites More sharing options...
zfrerichs Posted September 17, 2009 Report Share Posted September 17, 2009 That 51 hz is not your cars rescont(sp) frequency(sp) that is your box's peak to find your cars peak you have to run the sweep with a proper sealed box Quote Roseville, CA Link to comment Share on other sites More sharing options...
AI James Posted September 17, 2009 Report Share Posted September 17, 2009 just looking at equipment id get at least a xt4000v2 for those subs Quote Link to comment Share on other sites More sharing options...
CR Boom Posted September 17, 2009 Report Share Posted September 17, 2009 Agree with James, I started with a xt4000, and went up from there, I ended up with 2000 watts to the se's, they like it... Quote 2007 Great Wall So Cool 4-12' RE audio MX's Stetsom 7k2D 6-Batts 3-Mechman 250 amp Rhino's Link to comment Share on other sites More sharing options...
CR Boom Posted September 17, 2009 Report Share Posted September 17, 2009 Again read the posts, Make a sealed box, meter it outside the car record data, put in the car and meter again record and compare data, where ever you have the highest rise is your res freq... Then start the tune on your ported box 10-12hz below and keep cutting untill you max out... Quote 2007 Great Wall So Cool 4-12' RE audio MX's Stetsom 7k2D 6-Batts 3-Mechman 250 amp Rhino's Link to comment Share on other sites More sharing options...
Polecat Posted September 17, 2009 Report Share Posted September 17, 2009 true, now you know box peak, for car peak, shut car off, put on charger. get note CD and start testing, burp at X freq, record, allow a few seconds to recharge, coil to cool, go up 1 hz, burp, record, etc,etc. Quote Behind every great man....is an underwear tag! Link to comment Share on other sites More sharing options...
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