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Gold Member Username: MixmastaspigCanada, Canada Canada Post Number: 1266 Registered: Sep-05 | Just wondering if anyone (Pro box builder ppl) would be able to send me specs on a box tuned to 42hz, so after box rise it will be 47hz. Reason being is my old box was tuned to 47hz and I was louder when playing 45hz test tones, so Steve suggested 40-42tuning as the subs need between 2-2.5 cubes ea. after displacement for a daily/spl setup. The box would need 2 front baffle pieces for stability (maybe 3) and would be for competition and daily, so it's not a one hit wonder. Subs are 2x12" RD Elite SPL's V.2's and the specs can be up to MAX of: (Basically my entire trunk!) L-32" w- 33" h-15" Sub specs from RD (Steve) Znom= 4.0000 Ohm Revc= 4.0000 Ohm Sd= 55.0000E-3 M² Mmd= 282.0000 g Pmax= 2.0000E3 W Rtvc= 125.0000E-3 °C/W Xgap= 20.0000 mm Xcoil= 54.0000 M Xmax= 17mm Krm= 9.2880 mOhm Erm= 900.0000E-3 Kxm= 200.0000 mH Exm= 557.0000E-3 Rms= 12.5812 N·S/M Mms= 289.4126 g Cms= 10.8700 uM/N Vas= 4.6965 Ltr Fo= 79.7319 Hz Qms= 12.9695 Qes= 0.8816 Qts= 0.8255 BL= 27.2090 T·M Levc= 4.1540E-3 H SPLo= 91.6880 dB No= 369.0000E-3 % Thanks! (Hopefully pics work.....) [URL=http://imageshack.us][img]http://img149.imageshack.us/img149/7447/revolutionjm6.jpg[/img][/URL] [URL=http://imageshack.us][img]http://img228.imageshack.us/img228/5995/revolution1hh4.jpg[/img][/URL] [URL=http://imageshack.us][img]http://img149.imageshack.us/img149/2706/revolution2qf3.jpg[/img][/URL] [URL=http://imageshack.us][img]http://img149.imageshack.us/img149/3196/revolution3ek8.jpg[/img][/URL] [URL=http://imageshack.us][img]http://img149.imageshack.us/img149/8451/revolution4pj1.jpg[/img][/URL] |
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Silver Member Username: JtownATX, Texas Post Number: 917 Registered: Mar-07 | why not just ask steve miller, he will get you some specs for free and purty quick |
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Gold Member Username: •cam•Post Number: 1238 Registered: Nov-06 | Awesome, those look sick. Have fun. |
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Gold Member Username: MixmastaspigCanada, Canada Canada Post Number: 1267 Registered: Sep-05 | I have asked Steve about 4 times with no luck. So I'm looking else where. |
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Gold Member Username: MixmastaspigCanada, Canada Canada Post Number: 1268 Registered: Sep-05 | *Didn't mean to hit enter* He said he would have it done and that was like a month ago and Kevin even asked him for me, so here I am! He game me all the sub specs and thats as far as we got. thanks |
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Silver Member Username: JtownATX, Texas Post Number: 920 Registered: Mar-07 | yeah he usually needs a lil reminding, but good guy none the less. |
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Gold Member Username: HdubbTeam Revolution Post Number: 3056 Registered: Nov-04 | what kind of ports mike? aeroports or slot vent? and whats loudest in your saturn? sub and port firing back or up? might even try port back and sub foward. =\ |
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Silver Member Username: TeamrevolutionATLANTA, GA USA Post Number: 157 Registered: May-07 | I thought you had the box designed covered with the email you sent with the drawings. You want to tune them around 45hz. You should really use 1" board or double the 3/4 all the way around. If you use 1" i would double plate the face plate to make it 2" and dont be shy on the bracing. |
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Silver Member Username: TeamrevolutionATLANTA, GA USA Post Number: 158 Registered: May-07 | These are internal diamentions. All done off you using 1" thick board even for port walls 1" 13" tall 31" wide 25" depth Port 13" tall 6.5" wide = actual opening = 84.5 20.75" deep = from front of the port to the back tuned to 45hz peaks 48-53hz Total 5.8 cubic feet after sub and port= 4.1 cubic feet Run the port right inbetween the two suboofers to use as bracing in the middle of the box. It will be a tight fit on front plate so put the subwoofers as far as possible the the sides. Mike if you have any questions send me an email. thanks |
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Silver Member Username: TeamrevolutionATLANTA, GA USA Post Number: 159 Registered: May-07 | If you have to use 3/4" the port will be around 19.5" deep instead on 20.75" |
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Gold Member Username: InsearchofbassPost Number: 7281 Registered: Jun-04 | the reason you were probably louder at 45 hz with a 47 hz port tune is probably because the true tuning was 45 hz....the tuning can vary from actual intended port tuning sometimes....just thought id throw that in for your considerations |
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Gold Member Username: MixmastaspigCanada, Canada Canada Post Number: 1269 Registered: Sep-05 | Thanks Steve, I got your e-mails replying to you through that. That box design was just a little drawing on how I wanted it to look..lol sorry for the confusion! |
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Gold Member Username: •cam•Post Number: 1250 Registered: Nov-06 | I thought I heard that boxes would generally peak ~10 Hz above the Fb. True or false? |
