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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
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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
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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.
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Old 11-20-2012, 01:56 AM   #6
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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.
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