POLK LSIC CENTER 4 ohms
Hi, I'm looking for "real life" advice and not what the book says, so here it goes.
I received a LSIC center speaker as a gift, and it is rated at 4 ohms. My receiver (Denon 1611) is rated 6-18 ohms, the rest of my speakers are rated 8 ohms.
Would it be OK to run this speaker (LSIC) with that receiver with out damaging either one and/or any issues with mismatching speaker impedance with the receiver.
If this can't be done, anybody in the market for an LSIC?
Thanks
I received a LSIC center speaker as a gift, and it is rated at 4 ohms. My receiver (Denon 1611) is rated 6-18 ohms, the rest of my speakers are rated 8 ohms.
Would it be OK to run this speaker (LSIC) with that receiver with out damaging either one and/or any issues with mismatching speaker impedance with the receiver.
If this can't be done, anybody in the market for an LSIC?
Thanks
Post edited by fyrn on
Comments
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I thought the whole LSI series was 4 ohms.
What speakers are your front main speakers?
I have herd guys say the reason why some avr's have a 4 and 6 ohm setting is because it cuts down on the power 4 ohm setting to reduce the chance of over heating. Where as if you don't have the option to do that then the mfg only recomends 6 ohms or more.
I think they said it has to do with getting a UL approved.
They also said to run the 4 ohm speakers on the full power 6+ ohm setting.
It was in a thread where some wanted to know why their AVR had a 4 and 6 ohm setting.AVR: Onkyo Tx-NR808
Amplifier: Carver A-753x 250 watts x 3
Fronts: Polk RTI A7 (modded by Trey VR3)
Center: CSI A4 (modded by Trey VR3)
Rear: FXI A4
Sub: Polk DSW Pro 660wi
TV: LG Infinia 50PX950 3D
Speaker Cable: AudioQuest Type 8
IC: AudioQuest Black Mamba II -
Connect it and keep the AVR at 8ohms. The AVR doesn't care what you connect at this point.CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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I thought the whole LSI series was 4 ohms.
What speakers are your front main speakers?
Just to clarity, my fronts are a pair of RTIA3's but somebody gave me a used lsic center, that's how I end up with that speaker. -
Ahh i see.
Here is the post I was talking about with the ohm selection.
http://www.polkaudio.com/forums/showthread.php?t=118059
I am sure it will be fine running off your avr. Now you just need to get a pair of LSI's for the front two and move the RTI A'3 to surround duity.AVR: Onkyo Tx-NR808
Amplifier: Carver A-753x 250 watts x 3
Fronts: Polk RTI A7 (modded by Trey VR3)
Center: CSI A4 (modded by Trey VR3)
Rear: FXI A4
Sub: Polk DSW Pro 660wi
TV: LG Infinia 50PX950 3D
Speaker Cable: AudioQuest Type 8
IC: AudioQuest Black Mamba II -
Ahh i see.
I am sure it will be fine running off your avr. Now you just need to get a pair of LSI's for the front two and move the RTI A'3 to surround duity.
That would be great but that might take a bigger friend. Thanks for the link. -
Hi, I'm looking for "real life" advice and not what the book says, so here it goes.
I received a LSIC center speaker as a gift, and it is rated at 4 ohms. My receiver (Denon 1611) is rated 6-18 ohms, the rest of my speakers are rated 8 ohms.
Would it be OK to run this speaker (LSIC) with that receiver with out damaging either one and/or any issues with mismatching speaker impedance with the receiver.
If this can't be done, anybody in the market for an LSIC?
Thanks
Personally, I wouldn't. Sure you can hook it up and it will play, probably sound like crap too. Why risk doing damage when you don't have to ?HT SYSTEM-
Sony 850c 4k
Pioneer elite vhx 21
Sony 4k BRP
SVS SB-2000
Polk Sig. 20's
Polk FX500 surrounds
Cables-
Acoustic zen Satori speaker cables
Acoustic zen Matrix 2 IC's
Wireworld eclipse 7 ic's
Audio metallurgy ga-o digital cable
Kitchen
Sonos zp90
Grant Fidelity tube dac
B&k 1420
lsi 9's -
You can damage both your speakers and AVR if you hook them up and play at high volume levels. The only Lsi speakers I would even think about running at a 6 ohm setting is the Lsi 7 speakers. If you owned the Lsi 9's they have been known to dip into the 2 ohm range during certain applications. Bottom line is it would be a costly mistake for you. If you want to run Lsi series speakers take my advice and run an external amp that handles 4 ohm speakers.Polk HT system 1: LSIC, LSI25 mains, LSI F/X rears, Lsi F/X rear centers,
Yamaha RX-V2500 System, Carver A753 3 channel amp.
Polk HT system 2: , SRT system with f/x 1,000's rear speakers on 7.1 system currently using Onkyo TX-RZ820 receiver, powered by Sunfire Grand Theater amp
Polk Speaker collection: SDA SRS 1.2tl x 2, SRT system, SDA SRS 2 P/B, SDA 2A, SDA 1C Studio, SDA CRS+, Monitor 7B & 4, SRS 3.1tl, RTA 15tl, LS90, LSI 9 -
I have a yamaha rxv-1700 AVR which is capable of running just the front at 4 ohms according to the literature. My system is comprised of LSi's all around and I have never had a problem. The AVR does not get much hotter than when I was running 8 ohm loads all around. I would not be too concerned. You could run the speakers at a moderate volume for a bit and note the change in heat (of the AVR) for your piece of mind, but I have been running my setup for 2 years like this with no problem.
Just to keep to be clear (so I dont get my head chomped of by some zealots here) it is not IDEAlL, but it sounds better than "crap". Hooke that baby up and enjoy.
[The Ever-Evolving System
LSI15's (PNF Symphony cabels, modded X-Over and subs), LSIC, LSI7's, Rega Apollo CDP (PNF ICON ICs, modified PS cct.), Yamaha RXV-1700 w/ ipod dock, B&K REF200.2 (fronts) Samsung BDP-1600, XBOX360, Patriot Box Office Media Player, 42" Samsung LCD. -
Be careful, My SONY ES 5300 is rated for 4ohm use, I never tried it. I added an EMOTIVA XPA 5 before I upgraded to an LSI front sound stage.Emotiva XPA5, Sony ES 5300,: Lsi 15,s LSIC, Monitor 70,s, ( side surrounds) FXI 3,s, (rear surrounds)Micropro4000, Velodyne DEQ 10, Sony 55inchXBR 930D Sony BDP 790 Bedroom rig SonyES 3200 RTIA1,s CSIA4 FXI3,s polk PSW 10 SONY 34inch XBR960:cool:SONY BDP550
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If you think a 400 buck receiver has a beefy enough power supply to run 4 ohm speakers, I have a nice lot for sale near a nuclear plant in Japan for ya.HT SYSTEM-
Sony 850c 4k
Pioneer elite vhx 21
Sony 4k BRP
SVS SB-2000
Polk Sig. 20's
Polk FX500 surrounds
Cables-
Acoustic zen Satori speaker cables
Acoustic zen Matrix 2 IC's
Wireworld eclipse 7 ic's
Audio metallurgy ga-o digital cable
Kitchen
Sonos zp90
Grant Fidelity tube dac
B&k 1420
lsi 9's -
It's possible not to break anything if you keep the volume down, but you probably will not get the most out of the speaker. I ran a pair of lsi9s off of a yamaha rx-v765 for a couple weeks until I was able to pick up an external amplifier. I did not run into any issues; but I kept the volume fairly low, had the crossover set to 80hz for my subwoofer, and the setup was in a small room (12'x15').
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If you wanted to be on the safe side you could always sell it and get a CSI A4 or CSI A6 that would be a match to the RTI A3's that you currently have.AVR: Onkyo Tx-NR808
Amplifier: Carver A-753x 250 watts x 3
Fronts: Polk RTI A7 (modded by Trey VR3)
Center: CSI A4 (modded by Trey VR3)
Rear: FXI A4
Sub: Polk DSW Pro 660wi
TV: LG Infinia 50PX950 3D
Speaker Cable: AudioQuest Type 8
IC: AudioQuest Black Mamba II -
If you wanted to be on the safe side you could always sell it and get a CSI A4 or CSI A6 that would be a match to the RTI A3's that you currently have.
thanks, It sounds like that would be the safest route, If anybody is in the market for a LSIC send me a PM and let me know before I decide to put it on ebay.
