You can drive LSI-7s but I would not recommend it. But you're only running 2 speakers on two separate channels so this does not apply.Ĭoncerning the ratings given by Denon.that is simply a dynamic power rating for SHORT bursts describing what the wattage it puts out is at those impedances.īut 6-8 ohm speakers are pretty much all it can handle, realistically. The formulas for ohm/wattage reduction/increase are described in the article. See the following diagrams and fuller explanation: I do not know of any way to LOWER the impedance of the LSIs if you plan to use them as in a two channel configuration.Ī series connection is when you wire a set of speakers to one channel by linking them in a chain + end to - end on each speaker to the other.Ī parallel connection is when you wire + to +, - to - on two or more speakers.again off one channel. The Denon would then simply control the TONE and VOLUME settings-the external amp driving the LSIs. So the easiest thing to do is get an external two channel power amp that is rated for 4 ohm speakers and power the LSIs from that using the pre-out RCA plugs on the Denon L/R channel in the back of the Denon and wiring your LSIs directly to the Power-amp. It is not really built for dealing with a 4 ohm load.though the LSI-7s are the easiest of Polk's lower impedance speakers to drive.so if you don't push the Denon too much you could get away with it but it really won't give you a true semblance of what the LSI-7s can do. That AVR is rated for speakers from 6 ohms to 8 ohms.
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