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what would you use question again!!!!!!!!!!!!
Posted: Sun Jul 10, 2011 9:55 pm
by nutxo
Okay. I have a usa 150, rated 75x2 or 450 bridged into 2 ohms
I have a usa 425 (25x4 or 100x 2 into 4ohms) or 2 usa 100s (50x2 or 300@2ohms bridged) on the way. I have to answer tonight.
My original plan was bridge the 425 into my coaxes and use the 150 for my sub, rear fill off my deck and then later move the 150 to the front for tweeters, the 425 bridged for mids and the amp I havent gotten yet ( hopin for a usa400 ) for subs..... This seems like a great way to go because its very organic.
The I was thinking,, usa 100 on the sub ( 300@2ohms ) move my 150 to the coaxes and use another 100 on rear fill... I cant really see a way to grow this way though,..
Re: what would you use question again!!!!!!!!!!!!
Posted: Mon Jul 11, 2011 5:55 am
by kg1961
what speaker are you using also what kinda of car?
Re: what would you use question again!!!!!!!!!!!!
Posted: Mon Jul 11, 2011 7:40 am
by nutxo
kg1961 wrote:what speaker are you using also what kinda of car?
mb quart coax in the front and dcon 10d4 in the hole. Have some old alpines in the back set for fill.
Re: what would you use question again!!!!!!!!!!!!
Posted: Mon Jul 11, 2011 9:30 am
by stipud
If you want to make things more confusing, the 425 could also run the sub (bridged to each coil)
Re: what would you use question again!!!!!!!!!!!!
Posted: Mon Jul 11, 2011 10:35 am
by nutxo
stipud wrote:If you want to make things more confusing, the 425 could also run the sub (bridged to each coil)
lawl, not easily. On a side note I tried to explain Independent wiring of voice coils on a 2 channel recently and was told I couldn't do it.... I was like WT F!? Yes you can. I mentioned that conversation to a friend that runs a car audio place and then he told me it couldn't be done either,... Do people just never do it anymore???
On a side note I missed out on the usa 100s. As soon as I get some comps for the front I think Im gonna get a mini class d for the sub until I get a usa400.
Re: what would you use question again!!!!!!!!!!!!
Posted: Mon Jul 11, 2011 10:39 am
by ttocs
it isn't normally recomended to be honest but can be done. It is important to ensure that the amp is being sent identical signals so that the subs VC's do not end up in different phases and fighting each other.
Re: what would you use question again!!!!!!!!!!!!
Posted: Mon Jul 11, 2011 11:14 am
by nutxo
ttocs wrote:it isn't normally recomended to be honest but can be done. It is important to ensure that the amp is being sent identical signals so that the subs VC's do not end up in different phases and fighting each other.
Like I said, Not easily.
Re: what would you use question again!!!!!!!!!!!!
Posted: Mon Jul 11, 2011 12:42 pm
by ttocs
what is not easy about it? Take a Y splitter on the input and just feed one channel into the amp and your done.
Re: what would you use question again!!!!!!!!!!!!
Posted: Mon Jul 11, 2011 8:40 pm
by smgreen20
It's more time consuming that it is easy. You need to make sure that the gains for chs 1/2 & 3/4 are set to the same output as close as possible, and make sure that each bridged ch sees the same signal, as stated w/a Y splinter RCA
Re: what would you use question again!!!!!!!!!!!!
Posted: Mon Jul 11, 2011 8:49 pm
by ttocs
only if you use a 4 channel amp. A two channel would be better for it of course since one gain controls both channels.
Re: what would you use question again!!!!!!!!!!!!
Posted: Mon Jul 11, 2011 9:27 pm
by nutxo
lawl. Im using the 2 channel bridged into 2 ohms on the sub. US Amps are rated into 2ohm mono. it doesnt get any easier than that.