Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Results 1 to 8 of 8
  1. #1

    Member Sales Rating: (0)

    Join Date
    Aug 2008
    Posts
    3

    Default Single Voice Coil vs. Dual Voice Coil

    While not exactly troubleshooting problem, I am hoping for some advice...

    I am considering purchasing the Polk MOMO MM2124 series 12" subwoofer, but I was wondering what the differences are between single voice coils and dual voice coils. Are there any benefits between one and the other? How would the specifications on the amp change? Would one make a better sub for exclusively techno music over the other? Would one "hit harder?"

    Thanks!

  2. #2

    Member Sales Rating: (1)

    Join Date
    Jan 2008
    Posts
    1,180

    Default

    No.

    It's a gimmick to be able to better match the sub(s) to the amp(s). Make sure you get the proper TOTAL load.

    So if you want 4 speakers and your amp is 1 ohm mono stable, you would need each sub to come out to 4 ohms(single or dual voice coil).

  3. #3

    Member Sales Rating: (0)

    Join Date
    Mar 2008
    Location
    St. Louis
    Posts
    482

    Default

    still confusing how does dvc works and what should be the wiring to the sub should be.

  4. #4

    Member Sales Rating: (1)

    Join Date
    Jan 2008
    Posts
    1,180

    Default

    If you understand transformers and how they are wired up, a DVC sub is a center tapped sub.

    Basically, you cut the voicecoil in half and slap it back together to have 4 wires instead of 2. Same size voicecoil, same strength, just more ways to wire it.

    JlAudio has good tutorials:
    http://mobile.jlaudio.com/support_pages.php?page_id=145

    what you're looking for is:
    http://mobile.jlaudio.com/support_pages.php?page_id=163

  5. #5

    Member Sales Rating: (10)

    Join Date
    Aug 2008
    Location
    Walker. Louisiana
    Posts
    985

    Default

    dvc is having to ohm loads of the same value in one speaker.
    Say you have a 4 ohm Single coil. Then the sub is simply a 4ohm woofer.
    But if you have a DVC 4ohm sub then you can wire it to be a 2ohm or a 8ohm sub with differant wireing configs.
    Try this link it should help you understand the wiring differances with single and dvc subs.
    http://www.crutchfield.com/S-BMz1vQf...rs_wiring.html
    Living Room Rig:D
    Rotel RSP-1069/Rotel RMB-1095/Rotel-1072/Polk lsI15's W/modded xoverW/DBsubs/Polk LsiC/lsI7's/Klipsch sub-12"the weak link"/DLP Mitsubishi 65"
    Xbox360/PS3/WII
    M.Br. setup:)
    Emotiva MMC-1/Rotel RMB-1075/Polk BlackStone TL350's/Velodyne SPL1000/Samsung 51" Plasma
    Computer Rig:
    Rotel RB1050/Tannoy DC4's/Klipsch RW-10d/ImodIpod/HK AVR230 for now....
    Headphones-Ultrasone-HFI780's w/LittleDot MK Vamp Portables Panasonic HJE-900's

  6. #6

    Member Sales Rating: (4)

    Join Date
    Jan 2005
    Location
    LSU, Louisiana "In a galaxy far far away"
    Posts
    4,100

    Default

    This might be a crazy question but, the combined inductor's mH's dont double, do they? Meaning the low Fr cut doesnt change?

    If each coil was .90mH which gave a cut @ ~1khz. Things would not double if both coils were hooked?

    Giving, 1.80mH @ ~500hz?
    Last edited by jakelm; 08-07-2008 at 05:40 PM.
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!

  7. #7

    Member Sales Rating: (1)

    Join Date
    Jan 2008
    Posts
    1,180

    Default

    If the coils are wired in series, they add up.

    If they are wired in parallel, they divide.

  8. #8

    Member Sales Rating: (3)

    Join Date
    Nov 2005
    Location
    In the country Geronimo oklahoma
    Posts
    964

    Default

    more coils = more power handling ....and what he said ^
    " He who dies with the most equipment wins Right ? "

    Denon 3300 [COLOR="Blue"]Adcom 535 BBe w/sub out 1 pr 4.6s 2 pr of 4 jrs Recent additions Samsung Lns-4095D LCD, Samsung hd-960 DVD, Monster HT-5000 Power center
    ,HPSA-1000 18" sealed DiY home sub.:D
    Black Laquer 1.2tl's w/ upgraded x-overs and Tweets BI-Amped with 2 Carver tfm-35's Knukonceptz 10ga cables

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. Burnt voice coil
    By discopigg in forum Car Audio & Electronics
    Replies: 15
    Last Post: 04-29-2008, 04:58 AM
  2. blown voice coil?
    By shawn earnheart in forum Car Audio & Electronics
    Replies: 7
    Last Post: 01-25-2007, 10:47 PM
  3. blown voice coil!
    By shawn earnheart in forum Troubleshooting
    Replies: 4
    Last Post: 01-16-2007, 09:13 PM
  4. burnt voice-coil
    By Unicode2021 in forum Car Subwoofer Talk
    Replies: 44
    Last Post: 05-10-2005, 01:10 AM
  5. 3 single voice coil subs how to wire?
    By Bones in forum Car Subwoofer Talk
    Replies: 10
    Last Post: 04-10-2004, 04:18 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts