4 0hm

[keneth]

Anyone know if it is ok to use 4 ohm speakers and 8 ohm on the same a/v receiver? I may want to mix Polk LSi in the front and 8 ohm rears.

 

[j_garcia]

It really depends on the receiver. Some 8 Ohm receivers will be OK with it, but most will not, and some will even shut off when the impedance drops too low. Which LSis? The 7s can be handled by most decent receivers (I used to have 3 pairs), but anything above that would be better off with a more heavy duty receiver or one that was specifically listed as 4 Ohm stable (such as NAD). Are you going to go with the LSiC also?

 

[Pyrrho]

Anyone know if it is ok to use 4 ohm speakers and 8 ohm on the same a/v receiver? I may want to mix Polk LSi in the front and 8 ohm rears.

It is okay to use a mix of any different impedance speakers, so long as the receiver can handle all of the different impedances. If your receiver can handle 4 ohm speakers up front and 8 ohm in the back, you will be fine.

 

[dimes]

any four ohm stable receiver will be fine.

 

[keneth]

LSi15

Thanks for the replies. Garcia, you asked which LSi's. I have the 15's and am looking for an LSiC. Funny you mentioned NAD receiver. I used to run them on a 2 channel (NADC 372). It is now for sale on ebay (item # 5805070438). I am now going to use them with a A/V. I am researching an a/v receiver. I looked at the sony str-da3000es. I don't know if it is powerful enough. Any specific recommendations? I really appreciate the help.

 

[20to20K]

No problem whatsoever...

Anyone know if it is ok to use 4 ohm speakers and 8 ohm on the same a/v receiver? I may want to mix Polk LSi in the front and 8 ohm rears.

I've been running with a 4/8 combo with my Denon 3805 for a year now without any issues. Originally I was using the LS15's, LSiC upfront...all 4 ohmers...and the FXi3's (8ohm) in the rear just off the 3805. I did that for
about 3 months. Then I got an ATI amp just to drive the 15's so I'm still using the 4/8 combo with the centers and rears, and as I said, without any problems.

I think any halfway decent AVR (~>$500) will handle the load without issues. To get more out of those LSi15 I would definitely recommend going to a decent seperate amp for them later. It made a noticible improvement for me and and I suspect it will do the same for you...but for now the AVR should do fine.