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Connect a Dual 2-ohm voice subwoofer


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bigwest4085 
Copper - Posts: 67
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Joined: March 30, 2006
Posted: March 30, 2006 at 8:42 AM / IP Logged  

Hi i just bought a Power Acoustik Mofo-15 and i have a 2 channel amp and im not sure how to hook it up here is the link of the subwoofer and the amp i bought please help me out thnks

subwoofer- http://www.cardomain.com/item/POWMOFO15?ref=bizrdf

Amp- http://www.cardomain.com/item/POWTS19202
thank you..

haemphyst 
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Location: Michigan, Bouvet Island
Posted: March 30, 2006 at 9:05 AM / IP Logged  
One channel to each voice coil, OR voice coils wired in series, and bridge the amp. Easy-peasy, lemon-squeezy!
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Velocity Motors 
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Location: Manitoba, Canada
Posted: March 30, 2006 at 9:21 AM / IP Logged  

You can wire it only in a 4 ohm load. The amp is not capable of a 1 ohm load.

Option 2 (series) = 4 ohm load
Voice coils wired in series
Recommended Amplifier: Stable at 4, 2, or 1 ohm mono
Connect a Dual 2-ohm voice subwoofer -- posted image.

Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
haemphyst 
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Posted: March 30, 2006 at 11:17 AM / IP Logged  
Velocity Motors wrote:

You can wire it only in a 4 ohm load. The amp is not capable of a 1 ohm load.

orrrrrr...
haemphyst wrote:
One channel to each voice coil, OR voice coils wired in series, and bridge the amp. Easy-peasy, lemon-squeezy!
Jeff is NOT wrong in his suggestion, let me put that out there first. However, the way I would read his post is that his suggestion is the only way. It can be done either way. It is not mandatory to bridge the amplifier. One channel to each voice coil is the same load as the photo above, (a 2 ohm load per channel - max load for that amplifier) and the wiring will not be as (potentially) confusing for you if you are completely new at this. You WILL NOT damage the woofer or the amp doing it this way, either. You MAY/MIGHT/COULD suffer about a .1dB loss in absolute output, but will you notice? That answer, my friend, is a RESOUNDING "no!"
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
bigwest4085 
Copper - Posts: 67
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Joined: March 30, 2006
Posted: March 30, 2006 at 5:05 PM / IP Logged  
OK thank you soo much....so you are saying that you should connect each voice coil to one channel so the subwoofer have 2 red things and 2 black things..connect one blue&black to one channel on the amp and the other blue&black to the other channel and that way it is using all the amp and all the subwoofer....i have not clue about subwoofer stuff..thank you..
forbidden 
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Location: Alberta, Canada
Posted: March 30, 2006 at 5:09 PM / IP Logged  
There are two ways to properly wire this sub as both of the guys have described. That said, for ease of wiring, it is best to wire it the way that Jeff posted with his diagram above.
Top Secret, I can tell you but then my wife will kill me.
bigwest4085 
Copper - Posts: 67
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Joined: March 30, 2006
Posted: March 30, 2006 at 5:13 PM / IP Logged  
Ok it just does not seem right to put a wire thorugh a + and a - and then just connect one of the two coils to the amp...would the amp over heat or burn or blow out if i did it the other way??? thank you...
stevdart 
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Posted: March 30, 2006 at 5:45 PM / IP Logged  

Connect a Dual 2-ohm voice subwoofer -- posted image.  ^^^^

That's like doubting Shakespeare knows how to write.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
forbidden 
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Posted: March 30, 2006 at 5:57 PM / IP Logged  
Reading your last post to me at least still says that you are looking at things wrong. Your sub has two coils. You are not using one coil but half of one and half of the other. If you look at the diagram that Jeff posted, the + and - on the top of the speaker is one coil, the - and + on the bottom of the speaker is the other coil. Pay close attention to how the coils are wired. This is called a series circuit.
Top Secret, I can tell you but then my wife will kill me.
bigwest4085 
Copper - Posts: 67
Copper spacespace
Joined: March 30, 2006
Posted: March 30, 2006 at 7:23 PM / IP Logged  
Ok thank you...But can i put each voice coil to each channel?? like the first guy said? or would that be bad and would it blow out the subwoofer? or overheat the amp? thank you...
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