Powering LSI25 vs LSI15

schutz2106

I'm still lurking thinking I need some new speakers. But probably last set I will ever buy..... System I have sounds good. Looking for clarity above all. Stuck a new tweet in one of my 90's, Old psw300 sub had some problems like the box coming apart but screwed that together. There is nowhere around here to audition these or really anything. Was looking at rtia9's due to looks. Still dont know if I like the looks of LSI's but do want towers and not bookshelfs.
Main question would be. I have a Onkyo 805 which is 130 @ 8 with dynamic at 250 @ 4 ohm. Almost seems like I wouldnt have enough. But if I went with the 25's wouldnt that help me with actually not powering anything but the upper's? (powered sub) I used to have seperates before and dont want to go back so I am just going to stick with receivers from now on.

cfrizz

Welcome to Club Polk.

You should be purchasing speakers based on their SOUND not looks in general.
You WILL need an amp if you intend to buy any of the LSI series speakers.
Your receiver does have preouts so ALL you have to buy is an amplifier.
You should get no less than 200wpc @ 8ohms to ensure that your speakers will operate to their full potential.
You will get more bang for your buck if you buy a new amp from Emotiva, Outlaw, or purchase a used amp from www.audiogon.com. Brands to look at are: Parasound, NAD, Adcom, Rotel, Sunfire, B & K.

Another alternative is get a 5 channel amp NOW, and put it on your current speakers. You will be amazed at the improvement which just might put your new speaker purchase on the back burner for a while.

bluecomet

I have an Onkyo 805. It will drive the Lsi 25's but you would still be better off using a seperate quality amp. I use a Carver amp that puts out over 400 @ 4ohms. That is the type of power you need to really make them sing to there potential. I have not heard the Rtia9's but I am very content with my Lsi 25's. Buy a set of Lsi 25's and try it with the Onkyo. If it is not enough power you can always add the power amp and use the 805 as the Pre amp for HT. Just a thought.

cstmar01

schutz2106 wrote: »

I'm still lurking thinking I need some new speakers. But probably last set I will ever buy..... System I have sounds good. Looking for clarity above all. Stuck a new tweet in one of my 90's, Old psw300 sub had some problems like the box coming apart but screwed that together. There is nowhere around here to audition these or really anything. Was looking at rtia9's due to looks. Still dont know if I like the looks of LSI's but do want towers and not bookshelfs.
Main question would be. I have a Onkyo 805 which is 130 @ 8 with dynamic at 250 @ 4 ohm. Almost seems like I wouldnt have enough. But if I went with the 25's wouldnt that help me with actually not powering anything but the upper's? (powered sub) I used to have seperates before and dont want to go back so I am just going to stick with receivers from now on.

running a AVR and LSI isn't the greatest way to go. They are a 4 ohm load and should be matched with an amp that can easily do a 4 ohm load. If your running a full 5.1 or 7.1 LSI off an AVR your probably going to have a few issues in terms of how hard your AVR would be working and really putting a strain on it as normally they are not ment to run a 4 load but much more an 8 or 6 at the most. I would recommend getting a 5 channel amp and using the pre outs if you do go with LSI.

Also don't base your buy off of looks, sound is what matters, you could have a beautiful speaker but if it sounds like crap, well then you got a nice decoration in your living room I guess.

Bernal

I would recommend getting a 5 channel amp and using the pre outs if you do go with LSI.


√ Amplifier
SUNFIRE
Theater Grand Amplifier - TGA-7201


01) 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
02) SUNFIRE Grand Signature - Bob Carver's:D
03) OPPO BDP-83SE Blu-ray Disc Player w/SACD & DVD-Audio
04) OPPO DV-980H 1080p Up-Converting Universal DVD Player with HDMI and 7.1CH Audio
05) DENON DVD-2500BTCI: Blu-ray Disc™ DVD/CD Digital Player/Transport
06) HITACHI P55T501. 55" HD1080 Plasma HDTV
07) POLKAUDIO LSiC (Center speaker)
08) POLKAUDIO LSi15 LEFT (Front speaker)
09) POLKAUDIO LSi15 RIGHT (Front speaker)
10) POLKAUDIO LSiC Vertically (Surround speaker)
11) POLKAUDIO LSiC Vertically (Surround speaker)
12) POLKAUDIO LSif/x LEFT (Surround back speakers)
13) POLKAUDIO LSif/x RIGHT (Surround back speakers)
14) VELODYNE OPTIMUN SERIES 12"(High Output Digital EQ SubWoofer 2400W/1200WRMS)
http://www.polkaudio.com/forums/showcase/view.php?userid=98096 (Not updated)

wz2p7j

Schuttz - it's Ok to buy speaks because they look good to you. After all, they are going to be prominent members of your living area. Just make sure you like the sound as well.

Chris

JimAckley

Just a fyi, I ran my LSi25s' subs and PSW1000 all off of the pre-outs, and just left the high-range drivers on my receiver's amp, and it cut down on the stress big-time! The only time it tripped to protection is when it was honestly too loud for my own good. Nonetheless, go for an amp. I ended up grabbing a steal of a deal on a Crown and life has been grand ever since

Monster Jam

Frankly, I chose Polk over Klipsch due to cosmetic reasons. To each his own.