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Go Back   Blu-ray Forum > Audio > Subwoofers


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Old 11-16-2012, 03:12 AM   #1
Big Daddy Big Daddy is offline
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Default Connecting Dual & Quad Voice Coil Subwoofer Drivers to a Mono Amplifier

It may be helpful to review the Impedance & Sensitivity of a Speaker, & Damping Factor thread.

The most popular types of subwoofer drivers are Single Voice Coil (SVC) or Dual Voice Coil (DVC) drives. Quad Voice Coil (QVC) drivers are also available, but they are more rare. Single Voice Coil drivers have only one Red (+) and one Black (-) input. Dual Voice Coil drivers have two Red (+) and two black (-) inputs. The following pictures are examples of SVC and DVC.




Single Voice Coil (SVC)






Dual Voice Coil (DVC)






TC Sounds Epic Driver: 2 + 2 Ohm Dual Voice Coil






TC Sounds Axis Driver: Quad 1.2 Ohm Voice Coil




Depending on the impedance of each voice coil, you can connect the driver to the amplifier according to the following diagrams to get the desired net impedance.
























You can find additional information in the following link:

http://www.hometheatershack.com/foru...#axzz2HFohQbmG

Last edited by Big Daddy; 01-07-2013 at 03:04 AM.
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Old 11-16-2012, 03:43 AM   #2
rpatt rpatt is offline
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What's the difference/advantage from one to the other? I've never seen a dual voice coil sub driver.
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Old 11-16-2012, 04:29 AM   #3
Big Daddy Big Daddy is offline
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Quote:
Originally Posted by rpatt View Post
What's the difference/advantage from one to the other? I've never seen a dual voice coil sub driver.
There are no major advantages. Dual voice coil drivers are more flexible and allow you to achieve the desired impedance. Most dual voice coil drivers are used in car audio. Some of them are two 2 ohm drivers and allow crazy car audio fanatics to use 2 ohms. In home theater applications, we are expected to be sane and generally use 4 or 8 ohms drivers.
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Old 11-16-2012, 08:05 AM   #4
Nick The Slick Nick The Slick is offline
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Quote:
Originally Posted by Big Daddy View Post
There are no major advantages. Dual voice coil drivers are more flexible and allow you to achieve the desired impedance. Most dual voice coil drivers are used in car audio. Some of them are two 2 ohm drivers and allow crazy car audio fanatics to use 2 ohms. In home theater applications, we are expected to be sane and generally use 4 or 8 ohms drivers.
How about the ones that wire for 1/2ohm
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Old 11-16-2012, 08:29 AM   #5
Big Daddy Big Daddy is offline
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Quote:
Originally Posted by Nick The Slick View Post
How about the ones that wire for 1/2ohm
If you can find an amplifier that can handle 1/2 ohm speaker, you will be in pretty good shape.
HT Room: Panasonic PT-AE8000, Epson 1080UB Proj., Mitsubishi 65" Diamond Series HD TV, Yamaha-RX-A3010 Rec., CinePro 6-Ch. Amp. (350 W/Ch, 8 Ohm), Proton D1200 Amp., Behringer EP4000 & EPX3000 Amps., Oppo BDP-83, Sony BDP-S790, Audio Technica Tuntable, Mitsubishi S-VHS, 2 Def. Tech. Super Towers w 15" subs, 1 Def. Tech. Center & 1 Martin-Logan Center, 2 Def. Tech. Surr. & 2 PSB Surr., 2 Cadence Presence, 2 Bose 901 Rears, 2 Modified HSU 12" Subs, 1 ED DIY 12" Sub, 1 ED DIY 15" Sub, Velodyne SMS-1 Subwoofer Equalizer, DirecTV HD, Monster HTS 5000 & APC H15 Power Conditioners.
Two-Channel Room: XiangSheng Tube Preamp., Carver TFM-45 Amp. (375 W/Ch), Behringer EPX4000 Amp., Onkyo CD player, Denon Turntable, Yamaha Tuner, 2 Vintage Polk RTA-15TL Speakers, 2 LCY 100 Super Tweeters, 2 DIY Folded Horn Super Towers with 15" Sub., 1 Modified AA HD-SUB12
Family Room: Mitsubishi 73" Diamond Series TV, Yamaha DSP-A3090 Rec., DirecTV HD-DVR, PS3, Zvox Speaker, 1 DIY 12" Sub.
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Old 11-20-2012, 01:56 AM   #6
Big Daddy Big Daddy is offline
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I added the picture of a driver with Quad Voice Coils (QVC) and several diagrams on how to connect them to acheieve the desired impedance. Check Post #1.
HT Room: Panasonic PT-AE8000, Epson 1080UB Proj., Mitsubishi 65" Diamond Series HD TV, Yamaha-RX-A3010 Rec., CinePro 6-Ch. Amp. (350 W/Ch, 8 Ohm), Proton D1200 Amp., Behringer EP4000 & EPX3000 Amps., Oppo BDP-83, Sony BDP-S790, Audio Technica Tuntable, Mitsubishi S-VHS, 2 Def. Tech. Super Towers w 15" subs, 1 Def. Tech. Center & 1 Martin-Logan Center, 2 Def. Tech. Surr. & 2 PSB Surr., 2 Cadence Presence, 2 Bose 901 Rears, 2 Modified HSU 12" Subs, 1 ED DIY 12" Sub, 1 ED DIY 15" Sub, Velodyne SMS-1 Subwoofer Equalizer, DirecTV HD, Monster HTS 5000 & APC H15 Power Conditioners.
Two-Channel Room: XiangSheng Tube Preamp., Carver TFM-45 Amp. (375 W/Ch), Behringer EPX4000 Amp., Onkyo CD player, Denon Turntable, Yamaha Tuner, 2 Vintage Polk RTA-15TL Speakers, 2 LCY 100 Super Tweeters, 2 DIY Folded Horn Super Towers with 15" Sub., 1 Modified AA HD-SUB12
Family Room: Mitsubishi 73" Diamond Series TV, Yamaha DSP-A3090 Rec., DirecTV HD-DVR, PS3, Zvox Speaker, 1 DIY 12" Sub.
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