series parrallel for 3 subs

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knowhimwell

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Joined: April 04, 2005

Location: United States

Posted: April 04, 2005 at 10:12 PM / IP Logged

Is there anyone who could tell me if I can wire series parallel on 3 subs. I have the subs and the amp already. The subs are SVC 4 ohm. I am aware if I wire them parallel, they are 1.3 ohms. I can not go that low with my amp. Do I have another option with 3 4 ohm subs? My main issue is that I have the amp, the subs, and the box already and want to use what I have. PLEASE HELP.

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Satkunas

Copper - Posts: 97

Joined: April 04, 2005

Location: Canada

Posted: April 04, 2005 at 10:27 PM / IP Logged

Your only choice is to go parallel or all in series at 12 ohms with only 3 subs. If you had 4 or 6 (or 3 /w DVC) you could do a series parallel combination but with only 3 your choice is limited.

Alpine Guy

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Posted: April 04, 2005 at 10:28 PM / IP Logged

1.3 ohms or 12 ohms are your only options. Either take 1 sub out of the equation, or get a 1 ohm stable amp.

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Francious70

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Posted: April 04, 2005 at 10:32 PM / IP Logged

Wire two subs in series for 8 ohms. Then wire the thire in parrell for a total load of 4 ohms. You could aslo wire two subs parallel for 2 ohms, the the third in series for 4 ohms.

Paul

Francious70

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Posted: April 04, 2005 at 10:39 PM / IP Logged

This may cause phasing issues, so check with a 9 Volt battery before you drop everything into a box.

series parrallel for 3 subs -- posted image.

Paul

knowhimwell

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Joined: April 04, 2005

Location: United States

Posted: April 04, 2005 at 11:10 PM / IP Logged

This is the way I was thinking of doing it. Is this 4 ohm? I will be running this bridged on the subwoofer channel of a blaupunkt amp, that is 2ohm stable. Am I good to go, other than it posssibly being out of phase?.

Paul

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Satkunas

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Location: Canada

Posted: April 04, 2005 at 11:34 PM / IP Logged

Francious70 wrote:

Wire two subs in series for 8 ohms. Then wire the thire in parrell for a total load of 4 ohms. You could aslo wire two subs parallel for 2 ohms, the the third in series for 4 ohms.

Paul

This is not recommended as it will be hard to hear when you've reached the excusion limit on the series sub and there is a good chance you will end up blowing it.

Satkunas

Copper - Posts: 97

Joined: April 04, 2005

Location: Canada

Posted: April 04, 2005 at 11:38 PM / IP Logged

knowhimwell wrote:

Paul

The right-most speaker in this diagram is wired backwards. The positive terminal should be to the left, then all the speakers will be in phase.

stevdart

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Posted: April 04, 2005 at 11:42 PM / IP Logged

Sorry, Paul and Paul. It's still 12 ohms but now you've got one woofer out of phase....you might as well run just one woofer as to do that. Your best bet is to do what Alpine (aka Clarion) Guy said to do.

Here's the math for figuring series: R total = R1 + R2 + R3 etc.

for figuring parallel: 1/R total + 1/R1 + 1/R2 + 1/R3 etc.

In the diagram you have no woofers wired in parallel. You have to have at least two SVC woofers to make either a series or parallel connection. You are showing three subs in series, but one is reversed. There is no magic that will help you. Here is a handy wiring wizard.

knowhimwell

Member - Posts: 5

Joined: April 04, 2005

Location: United States

Posted: April 04, 2005 at 11:42 PM / IP Logged

I didnt even notice that. You are right. Other than that am I ok?

a life without christ is a life that is never fixed-kj52

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