Earthquake tech finally got back to me with box dim. According to them it's 1.5 with a 3" port 9 inches long. Now I don't really want to run a round port (ease of construction) Now if I go slot ported the 9" should become (if my math is right) 28.26. Is this just the figure for the wall along the back or total wall length? hope this is making sense. Plus the fact that Glass suggested tuning to 34 hrtz. Does all this compute. I got a cabinet maker friend who will build the box for nothing, all I gotta do is draw it up and provide the material. (good deal) So can you guys help me out here? Here are the specs that I have on the subs. 800 watts * Fs = 27Hz * Qms = 5.3508 * Qes = 0.7217 * Qts = 0.6359 * VAS = 2.40Ft * Xmax = 0.5" * 87dB 1W/1M * Revc = 6.67 * Levc = 5.9mH @ (1 kHz). * 2" Single Voice coil/8ohms 500watts continous (powered by an orion xtr2250) Since I bought them used I don't have any paperwork on them. If you need something else let me know and I'll contact tech suprt. That may take awhile as it took a week to get box dim. from them. You guys help will be much appreciated
with the recommended box size they gave you and the port diameter and port length that would come out to about a 34hz tune do a slot port 3 inch by 3 inch 11.75 inches deep and youll be good to go that would be about a 34hz tune again
Do you mean a 3 inch square port? And is it advisable to double tune a pair of subs. meaning tune one box to lets say 34hz and another to say 50hz? or should you always tune a dual box to the same freq.? This is just out of curiosity.
and dont forget displacement for the woofer and the port (air taken up by woofer and port) this should actually help you with making the demensions a little larger
yes its a v-max. gross means total so i assume its 2.6 cu ft after disp of subs and port. sean what do you think about drawin up a scetch or something of how a slot ported or square ported box would look. my aim is iamduff2442 and email just add @hotmail.com
Each port comes out to(3.5 x 3.14) 11" x 1" area, since there's two, you can make an 11" x 2" slot port that's 17" long in a 2.6 cu ft box. Should keep the 33hz tuning. Ran that by Jonathan and he said it made sense.