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[lucasdemoley]

right, a mate of mine wants to run three 12'subs of an amp like the directed 1200rms at 1ohm amp. He has two infiniti 300rms subs each with one 4ohm voice coil. He wants to add another sub, like an audiobahn one and mount it facing out of the box. If this sub is 600rms through two voice coils (thus each geting 3oorms at 4ohm) could i wire it so each voicecoil from the subs is in paralel, giving the amp a 1ohm load?
Is it ok to do this or might it reck a sub? Apart from not being able to tune the setings perfectly so each sub is at its optimum, are there any other problems or disadvantages?

Cheers

[properphatboy]

You have to look at the amp's specs but most are only designed to work between 2 and 8 ohms, and will either just turn itself off of destroy itself with too little resistance there. You'd probably need to wire the 2 subs he has now in series and wire the new one in parallel with both of them.

[bassboy]

dont do it if he wants to run everything off one amp...just because a speaker says its dual voice coil does not actually mean it has 2 voice coils...there is only one lol...just there are two inputs to the coil...so the amp can 'see' different loadings hence give different power figures...

also its ALWAYS a VERY VERY VERY BAD idea to run different speakers off the same amp...they will have different ratings, different efficiencies etc etc so by the time you have the Audiobahn working right...the other subs will be on their way to a burnt coil...or if you run the lower specc'd speakers properly...the Audiobahn will be screaming for more power

overall advice....invest in another amp

bassboy

PS...lucasdemoley...you interested in coming down and getting your car measured for DB? we have a sound off at Car audio security on the 29th let me know if you wanna come down

[lucasdemoley]

cheers peeps, ended up going for another sub the same and a new directed amp