Voice coil question

[logiball 10+ year member]

Does it do damage or adversely effect a dvc sub to run it with the amp only hooked up to one of the voice coils?

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[Falcons 5,000+ posts]

i wouldn't recommend it. remember only running one coil doubles your impedance and also cuts your rms in half.

 

[logiball 10+ year member]

Im looking at the SA12, which has an impedance of 4 and some change. Is that impedance only when both voice coils are hooked up or just one though?

 

[Falcons 5,000+ posts]

Im looking at the SA12, which has an impedance of 4 and some change. Is that impedance only when both voice coils are hooked up or just one though?

if it is a dual 4 then that means it has 2 4 ohm coils. hooking them up + to + and - to - gives a 2 ohm reading. and hooking up + to - and + to - makes a 8 ohm reading, which is not recommended.

 

[SuperSaeYoung]

Can he hook up 2 of the vc to 2 different channel?

 

[Falcons 5,000+ posts]

Can he hook up 2 of the vc to 2 different channel?

yes he could. he could get a two channel and hook up each voice coil to each channel and see 4 ohms per channel. just gotta be careful setting all your gains and whatnot.

 

[SuperSaeYoung]

yes he could. he could get a two channel and hook up each voice coil to each channel and see 4 ohms per channel. just gotta be careful setting all your gains and whatnot.

Some amp gain setting is for 2 channels.

 

[Falcons 5,000+ posts]

Some amp gain setting is for 2 channels.

then thats simple. lol

 

[logiball 10+ year member]

Great feedback thank you!!! Sorry I should have clarified a little bit more. I'm going to be getting(if the configuration I want to use works, if not I will get the 4 ohm) a 2 ohm dvc SA12, and the amp I have is a SAZ 1500d. At 2ohm the 1500 puts out 800, which I figure would be a good daily driver wattage, but if I ever wanted to pull up into the lanes and get a decibel reading I would like to hook up the additional vc and put the full 1500 to it. I can only fit one 12 in my ranger and thats the route I really want to go, so no suggestions on other set ups please. Back to the original question of is it okay to hook just one vc up on a dvc sub? I have been out of the audio game for 7-8 years so I apologize for the cobwebs in my head about some of this stuff.

 

[goingdef 10+ year member]

if it is a dual 4 then that means it has 2 4 ohm coils. hooking them up + to + and - to - gives a 2 ohm reading. and hooking up + to - and + to - makes a 8 ohm reading, which is not recommended.

high ohm loads do not hurt anything period, as a matter of fact there a lot easier on the amp and the cars electrical.

 

[goingdef 10+ year member]

yes he could. he could get a two channel and hook up each voice coil to each channel and see 4 ohms per channel. just gotta be careful setting all your gains and whatnot.

Don't hook each vc to a separate channel,run bridged with the speaker at an 8ohm load and bridged amp and each channel will see a 4ohm load and there won't be any issues with the amp doing slightly different rms levels across the channels they vary slightly from left to right.

 

[Flex68 10+ year member]

high ohm loads do not hurt anything period, as a matter of fact there a lot easier on the amp and the cars electrical.

* Nodding *

 

[Falcons 5,000+ posts]

high ohm loads do not hurt anything period, as a matter of fact there a lot easier on the amp and the cars electrical.

good luck gettting any wattage out at 8 ohms lol

 

[jsluss17 10+ year member]

Great feedback thank you!!! Sorry I should have clarified a little bit more. I'm going to be getting(if the configuration I want to use works, if not I will get the 4 ohm) a 2 ohm dvc SA12, and the amp I have is a SAZ 1500d. At 2ohm the 1500 puts out 800, which I figure would be a good daily driver wattage, but if I ever wanted to pull up into the lanes and get a decibel reading I would like to hook up the additional vc and put the full 1500 to it. I can only fit one 12 in my ranger and thats the route I really want to go, so no suggestions on other set ups please. Back to the original question of is it okay to hook just one vc up on a dvc sub? I have been out of the audio game for 7-8 years so I apologize for the cobwebs in my head about some of this stuff.

get the dual 4 ohm if you want to run it at 2 ohm by itself. if you get the 2 ohm voice coil you can either go 1 ohm or 4 ohm

 

[goingdef 10+ year member]

good luck gettting any wattage out at 8 ohms lol

I used to get plenty of power out of my power series T-600.2 at 8ohms Rf hx2 d4 bridged as it was over 500 watts rms and sounded **** good doing it! and a 2 ohm load bridged is 1ohm per channel and I don't know of any class a/b amps that can do that and "most" 2 channel amps are a/b.