ok
so here it is i am installing a system for a friend need to know how to wire the subs to the amp.
amp

Zapco Z600


bridged mono 325watts x 1 @ 4ohms
900watts x 1 @ 2ohms
amp info link below
http://www.zapco.com/nosound/index3.html
go to:
products
competition
zsieries
z600

woofer

2
kicker 12' L5 2 ohm speakers

sould i wire it in parallel or in series

thanks frank

 

You have to wire the subs in series (minus from one sub, plus from another and plus/minus connected together) so your amp will get a 4 ohm mono load and will produce about 600 watts.

Anton

 

is it the same for a dual voice coil speaker. sorry forgot to mention that.

 

If the woofers are D2s, then wire each woofers voice coils in series so each woofer becomes a 4 ohm woofer, then parallel them down to 2 ohms at the amp, bridged, this should get the most out of this amp.
If they are D4s, then do the same thing, however you will only get about 1/2 as much power out of the amp.
If you were just doing short burps, and they are D4s, you could parallel all 4 voice coils down to 1 ohm at the amp, and at the peak spl frequency the amp should actually see about a 2 ohm load due to working impedance rise, but if that's the case, you should port the box(es) at right about 4-7Hz below the peak burp frequency.

 

So they are dual voice coil 2 ohm subs?

 

i believe so.