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Thread: RTI12 vs LSI15

  1. #1

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    Default RTI12 vs LSI15

    I know that the 15's have more defined sound than the 12's and I have the 12's right now but my question is those of you that had both lines I like to hear the music really loud especially after a couple of drinks on the weekends and I hear that the 15's wont push as hard as the 12's need comments to see if its worth it to upgrade to the 15's or stay with the 12's loud is my main thing
    Home Theater sony 52 inch lcd,Cinenova grande 7 channel, polk RTI8,CSI5,FXI5,onkyo 805
    2 Channel rig Sunfire grand cinema 5ch,sunfire TGA III,Rotel 1072,polk RTI12,Monster hts 5100

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    the 15's will go pretty loud, but if that is your main preference, keep the RTi12's. I never heard them side by side, but the RTi12's have alotta slam, which probably keeps the grin on your face.
    Theater - Polk LSi15, LSiC, LSi9 speaks, DIY Sub (142.5L box, SVS plus driver, 500 Watt plate amp)...Outlaw 990 pre/pro, Carver TFM45, 2 X Outlaw M200 . Rotel RB980 . PS3, Monster 3600 power center

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    especially after a couple of drinks
    I have heard that the lsi are laid back and just want first hand opinions before I upgrade
    Last edited by crd2002; 02-06-2008 at 02:12 PM.
    Home Theater sony 52 inch lcd,Cinenova grande 7 channel, polk RTI8,CSI5,FXI5,onkyo 805
    2 Channel rig Sunfire grand cinema 5ch,sunfire TGA III,Rotel 1072,polk RTI12,Monster hts 5100

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    Quote Originally Posted by crd2002 View Post
    I know that the 15's have more defined sound than the 12's and I have the 12's right now but my question is those of you that had both lines I like to hear the music really loud especially after a couple of drinks on the weekends and I hear that the 15's wont push as hard as the 12's need comments to see if its worth it to upgrade to the 15's or stay with the 12's loud is my main thing
    I owned the RTi10ís, so itís not the comparison you are looking for. However, I found the differences between the two be equal as far as volume (loudness) is concerned. Just to qualify that, I basically go to the same (-5) DB level on my Pre when listening loud and usually donít go any further regardless of the speaker I am trying. Room size is everything so what may have been the same in my room would probably be different in yours. We have the same amp except you have 2 more channels than mine.

    For HT, the move for the floor standers was a lateral move. Also, to keep the front 3 matched, the LSiC will need to be looked into. For me, I liked the CSi5 much better.

    For music, the LSi15ís are definitely an upgrade for my ears.

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    Quote Originally Posted by crd2002 View Post
    I know that the 15's have more defined sound than the 12's and I have the 12's right now but my question is those of you that had both lines I like to hear the music really loud especially after a couple of drinks on the weekends and I hear that the 15's wont push as hard as the 12's need comments to see if its worth it to upgrade to the 15's or stay with the 12's loud is my main thing
    LSi15's for sure!!! (althought I personally can't stand the tweeter in the RTi12's, 10's, 8's etc)
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    Nothing wrong in playing the LSi's loud, in fact they like to be played very loud. Looks like you already have plenty of amplification so if you like to listen to music, LSi15's are a very worthy upgrade over RTi12's.

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    The Lsi play extremely loud. Especially with the right gear to keep them in line. At that price, focus on quality . . . trust me you will have the quantity of sound with the 15s.

    When people say liad back, they don't mean boring or slow. They mean more or less neutral. The 15s present the music to you as it was intended to be heard. They just let the notes stream out.

    The 12s take you buy the balls and shove it down your throat with much less finesse. That tweeter can be head-splitting at high levels as far as I am concerned.
    Last edited by SolidSqual; 02-06-2008 at 03:25 PM.

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    I know the sound is much clearer in the lsi I'm just concerned about volume need a lot of volume :D:D
    Home Theater sony 52 inch lcd,Cinenova grande 7 channel, polk RTI8,CSI5,FXI5,onkyo 805
    2 Channel rig Sunfire grand cinema 5ch,sunfire TGA III,Rotel 1072,polk RTI12,Monster hts 5100

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    Quote Originally Posted by crd2002 View Post
    I know the sound is much clearer in the lsi I'm just concerned about volume need a lot of volume :D:D
    If you are looking for the effect that Marty got in "Back to the Future", you may not get that in LSi or RTi's. :D

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    For that, I'd recommend adding something BIG (or double BIG) from SVS... :D

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    My new speakers have two 15" subs in each speaker. They are run by two odyssey SE Extreme Monoblocks and two Bel Canto e.One 1000s monoblocks . . . with those four amps and my CS2s I should have near 1.21 gigawatts to catapult myself back in time.

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    Quote Originally Posted by SolidSqual View Post
    The Lsi play extremely loud. Especially with the right gear to keep them in line. At that price, focus on quality . . . trust me you will have the quantity of sound with the 15s.

    When people say liad back, they don't mean boring or slow. They mean more or less neutral. The 15s present the music to you as it was intended to be heard. They just let the notes stream out.

    The 12s take you buy the balls and shove it down your throat with much less finesse. That tweeter can be head-splitting at high levels as far as I am concerned.
    +1 on the entire comment. I've played my 15's louder than any human should endure and couldn't believe the clarity and presentation of the music at those volume levels.
    HT
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  14. #14

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    thats what I'm talking about let me tell you the 12's can sing loud and clear with the right power
    Home Theater sony 52 inch lcd,Cinenova grande 7 channel, polk RTI8,CSI5,FXI5,onkyo 805
    2 Channel rig Sunfire grand cinema 5ch,sunfire TGA III,Rotel 1072,polk RTI12,Monster hts 5100

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    Quote Originally Posted by crd2002 View Post
    thats what I'm talking about let me tell you the 12's can sing loud and clear with the right power
    A friend of mine has Rti12's powered by Carver Mt..something-or-others at 400 wpc. They definately have some slam and play loud. I don't really care for the head splitting tweeter. If you are aiming to step up, though, I really don't think you would be dissappointed with the LSi15's. They play very loud and strong with good power.
    Last edited by Lowell_M; 02-06-2008 at 04:40 PM.
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    they always say that the lsi is laid back but it sounds like they have some output also that is way I want you guys opinions thanks
    Home Theater sony 52 inch lcd,Cinenova grande 7 channel, polk RTI8,CSI5,FXI5,onkyo 805
    2 Channel rig Sunfire grand cinema 5ch,sunfire TGA III,Rotel 1072,polk RTI12,Monster hts 5100

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    Quote Originally Posted by a_mattison View Post
    +1 on the entire comment. I've played my 15's louder than any human should endure and couldn't believe the clarity and presentation of the music at those volume levels.

    Same here. One night after a few beers (sounds like a common theme) I got out the SPL meter and the LSi15s were past 110db. Sounded clear as could be. Of course that was with a 170W/ch AVR. I haven't had that much to drink yet since I added the Sunfire TGA-5400.

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    cool I'm using a sunfire cinema 200wpc/at 8ohms and a sunfire tgaIII
    Home Theater sony 52 inch lcd,Cinenova grande 7 channel, polk RTI8,CSI5,FXI5,onkyo 805
    2 Channel rig Sunfire grand cinema 5ch,sunfire TGA III,Rotel 1072,polk RTI12,Monster hts 5100

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    At risk of getting flamed, my response is keep the RTi's if thats wat you've got. Thats not what I would expect to start the flames, however, this is:

    If you're looking for a louder speaker, and you're down with some seriously head-splitting highs, I recommend going with the biggest Klipsch towers they got. You'll be hard pressed to find something louder than Klipsch with their horn tweeters.
    Do you hear that buzzing noise?

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    The problem with Klipsch is you can't go loud because your ears will explode. ;)

    LSi's being laid back, I think most people mean they won't make you fatigued with the highs. They are very clear but smooth, and you can play them loud without feeling pain in your ears (you'll still lose your hearing...:)).

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    LSi's sound sexy.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

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    Quote Originally Posted by crd2002 View Post
    I know that the 15's have more defined sound than the 12's and I have the 12's right now but my question is those of you that had both lines I like to hear the music really loud especially after a couple of drinks on the weekends and I hear that the 15's wont push as hard as the 12's need comments to see if its worth it to upgrade to the 15's or stay with the 12's loud is my main thing
    What is your preference? 2-channel or HT?
    In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

    The best way to enjoy digital music reproduction is to never listen to good analogue reproduction.

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    When I was shopping I heard the Lsi15 and the Rti12s side by side. I was surprised but I really preferred the Rti12s. I read that the Lsi series was supposed to be higher quality and expected to like that one better. Just my 2 cents but I love the tweeters on the rti series.

    I have my Rti12s hooked up to 200 watts of Adcom power and they go crazy loud. It is effortless reproduction. I love it.

    Not to mention the price of the Rti12s is very low because they are being phased out. I got mine at Crutchfield for $949 a pair. That included shipping and a free (I did say free!) psw10 subwoofer. Of course the 12s don't need a sub but I am going to sell it for $100 making the speakers even cheaper.:D
    Onkyo Tx sr805
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    Quote Originally Posted by Monster Jam View Post
    At risk of getting flamed, my response is keep the RTi's if thats wat you've got. Thats not what I would expect to start the flames, however, this is:

    If you're looking for a louder speaker, and you're down with some seriously head-splitting highs, I recommend going with the biggest Klipsch towers they got. You'll be hard pressed to find something louder than Klipsch with their horn tweeters.
    Louder yes but I have always liked the sound of the polk high end over the Klipsch. I've always found the horns to sound harsh compared to the Polk domes. The 12s will go as loud as you need, unless you are trying to fill an auditorium or something.
    Onkyo Tx sr805
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    Adcom Gfa 545
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    Polk Audio cs400i
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    Panasonic 54" rear projection
    Direct HDTV DVR

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    Quote Originally Posted by edossin4 View Post
    Of course the 12s don't need a sub but I am going to sell it for $100 making the speakers even cheaper.:D
    For home theater use the 12's still need a sub. For music they are good on their own.

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    Quote Originally Posted by edossin4 View Post
    Louder yes but I have always liked the sound of the polk high end over the Klipsch. I've always found the horns to sound harsh compared to the Polk domes. The 12s will go as loud as you need, unless you are trying to fill an auditorium or something.
    Agree all the way around.
    Do you hear that buzzing noise?

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    Quote Originally Posted by edossin4 View Post
    When I was shopping I heard the Lsi15 and the Rti12s side by side. I was surprised but I really preferred the Rti12s. I read that the Lsi series was supposed to be higher quality and expected to like that one better. Just my 2 cents but I love the tweeters on the rti series.

    I have my Rti12s hooked up to 200 watts of Adcom power and they go crazy loud. It is effortless reproduction. I love it.

    Not to mention the price of the Rti12s is very low because they are being phased out. I got mine at Crutchfield for $949 a pair. That included shipping and a free (I did say free!) psw10 subwoofer. Of course the 12s don't need a sub but I am going to sell it for $100 making the speakers even cheaper.:D
    The LSi are higher end. The tweeter on the RTi series is overly bright, which gives the impression of a higher end.

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    I have heard both the RTI 12's ( my ex-roomate had a complete RTI HT setup w/ a HK receiver) and the LSI15's (my latest treat to myself). When my buddy first bought the RTI's I was very impressed. The have polks signature detail and clarity, and boy do they hammer. The one critque I would make is that the tweeter was quite bright, a bit harsh, and at high volumes quite fatiquing. The ring radiator tweeter peaked my interest and I sprung for the LSI15 which (I know, I know, is a crime) I am running with a Yahama RXV-1800. The LSI15 have superior clarity, astounding imaging, and the tweeter is very smooth. The LSI's are definately demanding and greedy, but the pound. At very high volumes I find the low end doesnt keep up w/ the rest of the speaker, but again I am running them under less than optimal conditions and the room shape in my apartment is probably the worth shape for speaker placement known to man. While I think the RTI 12's seem to handle bass a bit better than the LSI and pound like crazy, the mids and highs on the LSI outpreform those in the RTI hands down. LSI's with a nice power amp, and a sub (if you crave the chest shaking, police at your door bass) would be a pleasant upgrade over the RTI's. FYI, the price or LSI seem to be dropping like mad. Surf around on google or e-bay and you can get them for a steal.
    My only problem now is that my CSI3 (which I purchased first before I self-justified a much more expensive LSI setup and allowed my budget to swell) sticks out like a sore thumb, and I want me a power amp. Maybe after I get a real job.....
    :)

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    Quote Originally Posted by Sami View Post
    For home theater use the 12's still need a sub. For music they are good on their own.
    Agreed, I have run my 12s with 525wpc using a D-Sonic Magnum 1000S. Awesome sound in my HT. For LFE I back them up with dual SVS PB12/Plus2s.
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