Boon Posted July 11, 2009 Report Posted July 11, 2009 There's a couple of subs out there that actually recommend running only 1 coil when used in a sealed box - DLS Iridiums are one from memory. You can change the Q of the sub by using 2 coils, 1 coil, or 1 coil with the other coil shorted out. Quote 10.x volts fo' life!
bkolfo4 Posted July 12, 2009 Report Posted July 12, 2009 Its bad for the woofer to use only 1 coil. Wrong. . . You can use one coil. Just short the other one and the t/s parameters remain almost the same. Kicker Warhorse runs one coil at a time on a woofer - one coil pushes, the other pulls. They short the coil that is not being driven. t/s parameters of the woofer are almost the same, and back EMF is not thrown back into the amplifier. Quote Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz.
aznboi3644 Posted July 12, 2009 Report Posted July 12, 2009 there is absolutely nothing wrong with running one coil on a DVC sub Quote
zfrerichs Posted July 12, 2009 Report Posted July 12, 2009 imo dont do it theres no point in getting a dvc sub if you going to go threw the trouble of shorting it out or whatever just get a svc and be done with it Quote Roseville, CA
Kicker Guy Posted July 13, 2009 Report Posted July 13, 2009 can you do it physically..sure. should you do it...absolutely not.running off 1 coil changes the T/S parameters and completely changes how the sub will perform. you will usually get a muddy, sloppy bass performance out of it. its a waste of time and equipment. dont do it thats a big negative. Its bad for the woofer to use only 1 coil.Unless 1 coil is already gone making the speaker pratically junk. as for the driver reaching its proper xmax, that relies mostly on power, and box. A bigger box with 500wrms will reach full xmax before the same sub in a smaller box with the same power. Again thats a big negative. You can do it and it does run just fine. You can either short out the other coil, or you can actually connect a tune pot to it and change the Q of the sub at will. Very good write up about this topic. http://www.adireaudio.com/Files/DualVoiceCoilDrivers.pdf Quote Head Unit: Pioneer DEH-P6000UB Sub Amp:American Bass VFL 500.1 Subs: 4 Fi BL 18's Enclosure:21.5 Cubic foot flat wall tuned to 40 hz Batteries: 3 Kinetik 2400's in the back, Kinetik 1200 under hood. Mids & Highs: 4 Kicker DS 6.5 coax in doors, 2 Kicker DS coax in pillars Highs Amp: Kicker kx250.2, kx100.2 Wire: 4 Runs 1/0 gauge Knukonceptz
sri3850341 Posted July 13, 2009 Report Posted July 13, 2009 thats a big negative. Again thats a big negative. You can do it and it does run just fine. You can either short out the other coil, or you can actually connect a tune pot to it and change the Q of the sub at will. Very good write up about this topic. http://www.adireaudio.com/Files/DualVoiceCoilDrivers.pdf didnt know you could choke a un powered coil Quote 07 mote carlo.. deh-p800prs hu-cdt gold 6.5's-cdt 6x9 2 ways-mcintosh mc431m(mids/highs) bxi2608,2 10w7's in 4rth order(designed by pete k)ported into cabin via armrest cutout dc power 260 amp alt-missing link module (15.4v)kicker 1/0 kit deka intimidator under hood metered 141.0 @ 32hz windows down @ kick,termlab
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