LSi f/x

bdtae5656

Can these speakers be powered at 8ohms by my AVR for the time being until I can buy another amp??? Or would the LSI 7's be best for my setup.

zx_toth

The LSi FX are also a 4 ohm speaker requiring some amplification beyond which a AVR rated at 8 ohms can safely drive. My understanding is that you would risk damaging the speakers if you under powered it with insufficient power. If you are really into having surrounds at this point it may be better to use some old 8 ohm speakers kicking around to do surround duty until you have a sufficient amplifier for the LSiFXs.

It is most important to have your front stage speakers match. Having surrounds match is ideal but is less important than the front stage. This may be a good temp. solution. Do you have any speakers from an older Home Theater rig or does a friend have some 8 ohm speakers he can loan for a few months that are otherwise sitting in his closet??

Z

bdtae5656

zx_toth wrote: »

The LSi FX are also a 4 ohm speaker requiring some amplification beyond which a AVR rated at 8 ohms can safely drive. My understanding is that you would risk damaging the speakers if you under powered it with insufficient power. If you are really into having surrounds at this point it may be better to use some old 8 ohm speakers kicking around to do surround duty until you have a sufficient amplifier for the LSiFXs.

It is most important to have your front stage speakers match. Having surrounds match is ideal but is less important than the front stage. This may be a good temp. solution. Do you have any speakers from an older Home Theater rig or does a friend have some 8 ohm speakers he can loan for a few months that are otherwise sitting in his closet??

Z

Yeah I figured it would be a bad idea...I still wanted to ask the polk audio world! My understanding is that the rears are a little more understanding than the mains when powering them at there highs level. What about the LSI 7's...there's some post that the 7's dont drop below 6 ohms.
No rears...I might have to go yard sale shopping!

zx_toth

Yard sale shopping would do it

How long before you will have saved up for a new/used amp? If its bareable <sp?> you can hang in there with your 3.1 system until you have sufficient coin to buy the amp and LSi surrounds. Ive had to do it in this step wise fashion, replacing my RM center with an LSiC and a sufficient amp. Im about to get some surrounds but have been without 5.1 for over a year.

If it is TOOOOO LOOOOOONG before (more than 6 months for example) and you cant wait to have surround sound again you may be able to pick something up an 8 ohm surround speaker pair used on Club Polk flea market, Craigs list and if you get a great deal you can re-sell it for the same price later on ... all options.

Good luck.

Z

bdtae5656

xcapri79 wrote: »

I would answer yes as long as you don't push it to really load volumes. The Harmon Kardon receivers are actually pretty good. From my experience with them, they typically underrate their power output.

It is common to use the LSiFX for the side surrounds and the LSi7's for rear surrounds. It is true that the LSi7's are not as difficult to drive.

I would point out that with your XPA3, you will have already removed the significant burden of powering the center and fronts from the AVR.

For surround applications, you will set your speakers to small with a 80Hz cutoff. The LSi's are hard to drive below 80Hz, so as long as you stay away from that in your application you should be ok.

To note, I ran my LSi's on my Pioneer VSX-1018AH for some time on my master bedroom system where loud volumes were never used. I eventually added a XPA3 amp for the fronts and moved my LPA1 from the main room to the master bedroom set up for the surrounds. I just finished adding a Polk 42" surroundbar powered off the AVR for the times I don't want to run my amps but still want great sound.

Will the AVR send out more watts to the Fx's since there the only speakers hooked up to the AVR

bdtae5656

Should my LSIC be turned to large or 80hZ???

nooshinjohn

I got a set of b-2 klipsch speakers with original box you can get for 130 plus shipping...

zx_toth

bdtae5656 wrote: »

Should my LSIC be turned to large or 80hZ???

Good question .... I would be interested in hearing what some other owners have to say about this. I have my LSiC set to 'small' and it sounds fantastic but honestly I have never experimented with putting it to 'Large'. Anyone have any opinions on this?

Z

Bernal

zx_toth wrote: »

Good question .... I would be interested in hearing what some other owners have to say about this. I have my LSiC set to 'small' and it sounds fantastic but honestly I have never experimented with putting it to 'Large'. Anyone have any opinions on this?

Z

Hi,
I have configured my LSi Series as large. Video: The sound is excellent. In small stereo.;)

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1) DENON AVR-4308CI: Advanced 7.1 CH/5.1+2 CH/ 3.1+2+2 CH A/V Home Theater /MultiMedia Multi-Source/Zone Receiver with Networking and WiFi/170 watts x 7 channels
2) HITACHI P55T501. 55" HD1080 Plasma HDTV
3) DENON DVD-1740: Progressive Scan DVD Video/CD Player
4) DENON DVD-2500BTCI: Blu-ray Disc™ DVD/CD Digital Player/Transport
5) POLKAUDIO LSiC (Center speaker)
6) POLKAUDIO LSi15 LEFT (Front speaker)
7) POLKAUDIO LSi15 RIGHT (Front speaker)
8) POLKAUDIO LSif/x LEFT (Surround speaker)
9) POLKAUDIO LSif/x RIGHT (Surround speaker)
10) SONY SA-WP16 ( Sub Woofer 2X200W)