How many preouts do I need?
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 7,392
Likes: 216
From: Merritt Island, FL
How many preouts do I need?
I'm planning on using an odd headunit, a non-US-market Alpine, in my C4. it's only got 1 set of preamp outputs. I want to run a pair of front speakers and a pair of rear subs in the stock enclosures. The amp will be an Arc KS125.4.
Can I use the output from this one set of preouts, to run to the amp, and have the amp provide crossover duties? Or do I need to scrap this headunit idea and go with one that has a dedicated Sub preamp output and then an additional preout for the full-range speakers?
Can I use the output from this one set of preouts, to run to the amp, and have the amp provide crossover duties? Or do I need to scrap this headunit idea and go with one that has a dedicated Sub preamp output and then an additional preout for the full-range speakers?
Tech Contributor
Joined: May 2003
Posts: 7,035
Likes: 134
From: North Augusta, SC
It depends on the amp. Many allow one pair of inputs to feed all of the output channels by selecting a switch to let it know there are only 2 input channels feeding all of the outputs. If your amp can't do that all you need to do is install a Y type splitter at the amp inputs, then select the front channels to HP and sub channels to LP. Either way you need to make sure the HU is outputting a full signal on the RCA's.
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 7,392
Likes: 216
From: Merritt Island, FL
It depends on the amp. Many allow one pair of inputs to feed all of the output channels by selecting a switch to let it know there are only 2 input channels feeding all of the outputs. If your amp can't do that all you need to do is install a Y type splitter at the amp inputs, then select the front channels to HP and sub channels to LP. Either way you need to make sure the HU is outputting a full signal on the RCA's.
Race Director
Joined: May 2003
Posts: 14,137
Likes: 2,984
From: Iowa
St. Jude Donor '03 thru '26
As previously mentioned, if the single set of RCA's are full range all you need is 2 of these: http://www.knukonceptz.com/productDe...rodID=KLA-1F2M
