OT-car audio experts-question

[EvilE]

I am having a brainfart--my 12"sub blew today, and I was looking at some on Ebay tonight, and there is a sub I want, but it says it's a dual 4 ohm subwoofer--what does that mean exactly? I have a 2 channel MTX amp, and I want to run the one subwoofer, can I with this subwoofer? I used to be very good with car audio, but I am having a brainfart here! The sub that blew is of course a 4 ohm.....

 

[maxfam]

yes you can 4 ohm is for better bass.

 

[supereri]

Dual 4 ohm will be wired as 8ohm (using 1amp channel), 2ohm(using 1amp channel), or independently as 4 ohm each (using 2 amp channels). Make sure your can drive a 2 ohm load.

http://www.crutchfield.com/ISEO-rgbtcspd/learningcenter/car/subwoofers_dual.html

 

[Westy82]

you can use that 2 channel amp just make sure when wiring the sub up from the amp you use a postive from one channel and then the negative from the other. i have done many installations so if you have any questions feel free to send me a pm. or if your near me we could possibly wire it up real quick one of these evenings.

 

[sjm1978]

just wire the 2 voice coils together its simple. i been doing car audio since i was 11 years old

 

[dvlax40]

or you can buy my set up

 

[landy]

<a href=showthread.php?s=&postid=11157763#post11157763 target=_blank>Originally posted</a> by supereri
Dual 4 ohm will be wired as 8ohm (using 1amp channel), 2ohm(using 1amp channel), or independently as 4 ohm each (using 2 amp channels). Make sure your can drive a 2 ohm load.

http://www.crutchfield.com/ISEO-rgbtcspd/learningcenter/car/subwoofers_dual.html

right on the money

 

[EvilE]

<a href=showthread.php?s=&postid=11157922#post11157922 target=_blank>Originally posted</a> by sjm1978
just wire the 2 voice coils together its simple. i been doing car audio since i was 11 years old

I'm not sure if my amp goes down to 2 ohms, so I need a 4 ohm impedance. It is a 2 channel amp, I bridge the 2 channels and run a single 12" sub on it. can the 4 ohm impedance be done with a dual 4 ohm sub? I thought you could only run the dual 4 ohm sub in 2 or 8 ohms?

 

[EvilE]

<a href=showthread.php?s=&postid=11157924#post11157924 target=_blank>Originally posted</a> by dvlax40
or you can buy my set up

shameless plug.....


BTW-what's your setup?

 

[sjm1978]

what amp do you have Model?

 

[EvilE]

<a href=showthread.php?s=&postid=11157978#post11157978 target=_blank>Originally posted</a> by sjm1978
what amp do you have Model?

It's just an old MTX RT 2200 (2 channel)

 

[jpeggerling]

I have two 12" Infiniti 1200 watt subs in a box for sale. They are only 4 months old. LMK if you would be interested. shot me a PM

 

[sjm1978]

i sent you another pm the model number of that sub shows it's a single 4ohm not a dual 4ohm. so maybe the seller on ebay typed the wrong specs.

 

[jasonh]

if it's dual 4ohm, you can run one voice coil per channel on the amp. that's about the only way to do it unless your amp can do a 2ohm load when bridged. OR, you could get two of the subs and run a 2ohm load per channel, which most amps will happily do.

if it's really a single as sjm says, then no worries

 

[sjm1978]

like jasonh says if it is a dual voice coil sub just run one voice coil per channel. heres the specs of your amp http://www.crutchfield.com/S-qqmQ4hDmBXs/App/Product/Item/Main.aspx?g=100&i=236RT2200&tp=14

50 watts x 2 into a 4 Ohm load with less than 0.5% THD

100 watts x 2 into a 2 Ohm load with less than 1% THD

200 watts x 1 into a 4 Ohm load with less than 1% THD

 

[EvilE]

Thanks for everyones responses! I appreciate it!

 

[dvlax40]

my setup is a lesser known one, i hate lables and after using rockford fosegate for years i got sick of their new amps which were orver hyped dressed up garbage. i bought a us acoustic 1200 watt amp. not a big huge company but damn they know electronics, in fact all they make is amplifiers and security systems, this thing is a beauty, my subs on the other hand are balls and dont do the amp justice. my friend wants my amp to power his 900 dollar subs lol but i need to get rid of everything. o and the wring is zero gague

 

[EvilE]

I am big on MTX amps--they have always been solid for me. And they are made here in town!

 

[azreefer]

Looks like you've been given some good advice but you can pm me if you have any questions. Before getting into selling custom aquariums I previously was the technical dirctor for MTX, Precision Power, and Diamond Audio. I also owned my own store for several years.