Dave R. Posted January 3, 2004 Share Posted January 3, 2004 I built a subwoofer using a Shiva driverwhich has dual voice coils which can be wired for either 4 or 16 ohms. My Kenwood receiver calls for * ohm speakers including the sub output. Any suggestions? I'm I going to fry the amplifier if I use a sub without the recommended ohm rating? Quote Link to comment Share on other sites More sharing options...
Q-Man Posted January 3, 2004 Share Posted January 3, 2004 If I understand you correctly, your Kenwood isn't going to be driving your sub. That sub or LFE out is a low level signal to be fed to an amp. You need a power amp for the sub, and most sub amps are designed for a 4 Ohm load. Quote Link to comment Share on other sites More sharing options...
fabulousfrankie Posted January 3, 2004 Share Posted January 3, 2004 Are you using the Kenwood receiver as a sub amp only? If so, then you'll be fine becuase each VC of the Shiva is 8 ohms. Just hook the left channel to one voice coil and right channel to the other. Quote Link to comment Share on other sites More sharing options...
Dave R. Posted January 4, 2004 Author Share Posted January 4, 2004 I will be feeding the sub from the sub output in the Kenwood. The sub has a 250 watt amp. Quote Link to comment Share on other sites More sharing options...
Dave R. Posted January 4, 2004 Author Share Posted January 4, 2004 I will be feeding the sub from the sub output in the Kenwood. The sub has a 250 watt amp. Quote Link to comment Share on other sites More sharing options...
itsmyforte Posted January 5, 2004 Share Posted January 5, 2004 so whats the problem then? if your using the dedicated ouput then the subwoofer amplifier attached to your Shiva is going to be driving it. your kenwood has nothing to do with impedance matching on a pre-amp output(ok, well it does but not in this case) maybe your confused or i don't understand the question. EDIT: oh, i think i get it, your saying the kenwood has a dedicated subwoofer amplifier built into it? if thats the case then hook both voice coils in series then use one + and one - into the amp. though i gurantee that kenwood will not have enough juice for that driver. Quote Link to comment Share on other sites More sharing options...
fabulousfrankie Posted January 5, 2004 Share Posted January 5, 2004 Dave I think you're just confused, you have nothing to worry about. Everything you've said is technicallly correct, but just slightly twisted around. When your Kenwood says not to connect speakers less than 8 ohms, it means not to connect speakers less than 8 ohms to the receivers amplifier(meaning the 5/6/7 mains speakers in a HT you'd connect with speaker wire). Since you're subwoofer is not using the Kenwoods' amplifier and it has it's own 250W plate amp you don't need to pay attention to Kenwood's warning when it comes to the subwoofer. Quote Link to comment Share on other sites More sharing options...
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