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Discussion Starter #1
Hello<br>
i'm nearly done with my audio setup in the C320<br>
sooo i've replaced nearly everything excluding<br>
head unit COMMAND. I have Helix/Brax 4-channel<br>
amp, configured to work in 3-channel mode<br>
(two channels for L/R front and one bridged<br>
channel for subwoofer). Now i have sort of problem<br>
When using two channels bridged, total impedance<br>
of the speaker is not allowed to be lower than<br>
4 ohm. My subwoofer has two-cone speaker (two<br>
coils 6 ohm each) so i'm getting 3ohm speaker.<br>
When trying to hook that up to the bridged output<br>
amplifier switches on overload protection<br>
immediately - of course, because output load<br>
is lower than 4 ohm... i've tried to use single<br>
channel instead of two bridged and everything<br>
works OK, but i'm lacking some power in the<br>
low frequency channel. Now comes my question<br>
is it wise to split those two inputs of<br>
dual cone speakers and supply each of them<br>
with separate amp channel, supplying left<br>
and right signal separately? It sounds to me<br>
that this could work, although i've never tried<br>
such a setup. If it would be OK, i could<br>
configure my amp to 4-channel mode and lead<br>
3th and 4th channel to the separate coils in<br>
the subwoofer. please help<br>
 

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Discussion Starter #2
You might run the risk of overpowering the speakers but I have done this in the past and eventually had to revert back and change the amp.<br> <br> BTW, please post pics when you're done !! Would love to see it
 

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Very nice amp and I am surprised that it can't take a 3 ohm load. Most will say that 4 ohms is the limit but there is really not much difference between three and four ohms. Suprising for the Helix.<br> <br> You must be using a JL Audio woofer. I would suggest getting a new woofer that is either dual 2 ohm dual 8 ohm or single 4 ohm voice coil.<br> <br> Take your woofer back to the store and trade it for a jl xxW3 d2 or sell it on ebay. JL's typically get pretty good return.<br> <br> Good luck
 
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