Can I run this amp with this sub, how do ohms work, help/recommendations...

**mikeym** · 02-04-2007, 03:22 PM

Originally Posted by spuzzdawg

I haven't answered any of your other questions because I found your post a little hard to follow. Draw up some pictures in pait of the way everything was/is connected and how they relate to your questions

Spuzzdawg

spuzz,

here you go man. sorry its primitive. I had a hard time following the diagrams on our amplifiers wiki about series and parellel.

How is this sub wired? This is how that audiobahn was wired when I got it second hand.

Assuming that its a 4 ohm rated sub. What does that do? Lower or higher the ohm impedance?

thanks!

**XC-C30** · 02-04-2007, 03:46 PM

that way the sub"ll play at 8Ohm

You need to wire it this way to play @ 2Ohm :

**TheQuinsta** · 02-05-2007, 03:12 AM

Dude

No way in hell you can run that sub off that amp, common problem with boys and their toys is they look at the max power and go WOW Your RMS is the key your sub (from the page you posted up) says that it is 500W RMS if you amp is output power (100W @14.4 ) this is basically your RMS value you are running your sub way under at least half of what it should be. Ideally you should run a speaker over its rating by a small percent of its total so that your amp doesnt work as hard.

Normally you would connect up DVC (dual voice coils) subs in parallel that is what they were designed for basic SPL for the big boys doing sound offs, alternativly you would place two single speakers in parallel to achieve this as long as the amp is rated to go into 2 ohms, the amp doesnt have switches to change this its just how the amp works..

Resistances in parallel effectivly halve ie 4 ohm spk in parallel with another gives you two speakers at 2 ohms this allows you to split the power over both speakers without ****ting you amp and gives you "twice the sound".
As IC-C30 pic shows this is correct the coils are 4 ohm coils so if you parallel the coils up like the picture you effectivly get one speaker at 2 ohms.

In short get a bigger amp, if you are running a single 15 and thats it probably go for a single channel amp 2 ohm supporting and dont forget

**mikeym** · 02-05-2007, 12:56 PM

Originally Posted by IC-C30

that way the sub"ll play at 8Ohm

You need to wire it this way to play @ 2Ohm :

is that series or parellel?

**TheQuinsta** · 02-05-2007, 01:55 PM

Thats parallel, series would as you had it wired in your previous pic that you had drawn amp to red, loop black to red, black to amp

**mikeym** · 02-05-2007, 02:07 PM

thanks quinsta, i know this is all newbie stuff, but its confusing until you get it down...

appreciate it

**TheQuinsta** · 02-05-2007, 02:14 PM

No worries i started out like you blew up a head unit cause i trusted the existing earth,

shat an amp cause of a **** connection,

been there done that all my experience is thru my own sorting stuff out reading forums

and web pages and the helpful use a audio specialist in town who is a mate of mine been in the business for years.

And hopefully if people find faults in my posts they can set me straight if they dissagree

**mikeym** · 02-05-2007, 03:06 PM

OHH!!!

how did you blow up that HU exactly? my buddy blew up one and he was trying to power 500 watt subs with the bazooka i'm using now... i don't think i'm in any danger as I do a lot of fusing. But I'm curious

~mikeym