Looking for an amp for my RTI-12's

bengi_ap
bengi_ap Posts: 4
edited January 2011 in 2 Channel Audio
I have a pair of RTi-12's that I purchased over a year ago. I am driving them with a Yamaha RX-V 765 (100W per channel), running 2 outputs to each speaker in bi-amped mode. I am not satisfied with the sound quality and am looking to purchase a Rotel amp to drive them. My local Modia store has the RB 1572 (class-D) and the RB 1582 (class-A&B) amp.

Looking for advice as to which amp is better for the RTi-12's. Suggestions?
Post edited by bengi_ap on
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  • tonyb
    tonyb Posts: 32,967
    edited December 2010
    Either one will work. Comes down to sound preference. The reason why you don't like the sound is you've been underpowering them, and bi-amping from a receiver is a waste on top of it. If it were me, I would go for the 1582, but thats just me. Enjoy and let us know what you get and how it sounds.
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  • jinjuku
    jinjuku Posts: 1,523
    edited December 2010
    bengi_ap wrote: »
    I have a pair of RTi-12's that I purchased over a year ago. I am driving them with a Yamaha RX-V 765 (100W per channel), running 2 outputs to each speaker in bi-amped mode. I am not satisfied with the sound quality and am looking to purchase a Rotel amp to drive them. My local Modia store has the RB 1572 (class-D) and the RB 1582 (class-A&B) amp.

    Looking for advice as to which amp is better for the RTi-12's. Suggestions?

    The best amp is the one you like of the two that you demo at home. Your local store should let you a/b them in your listening environment for a few days or so.
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  • markmarc
    markmarc Posts: 2,309
    edited December 2010
    I agree with TonyB, biamping from a receiver is a complete waste. In addition to auditioning in your own home, I'd first tell you to read up on room placement and positioning techniques.
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  • ben62670
    ben62670 Posts: 15,969
    edited December 2010
    What size room?
    How loud?
    HT or Music?
    Budget?
    Welcome to Club Polk.
    Ben
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • Mike Reeter
    Mike Reeter Posts: 4,315
    edited December 2010
    I can tell you for a fact,the 12's are POWER HUNGRY...Polk recommends up to 500 wpc...good luck,I hope you didn't eff' things up by driving them with a receiver.
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  • Mike Reeter
    Mike Reeter Posts: 4,315
    edited December 2010
    Mike Reeter wrote: »
    I can tell you for a fact,the 12's are POWER HUNGRY...Polk recommends up to 500 wpc...good luck,I hope you didn't eff' things up by driving them with a receiver.

    bengi-ap,sorry about the eff' things up comment...with good power the 12's should sing.
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  • schwarcw
    schwarcw Posts: 7,338
    edited December 2010
    Greetings Mike!

    Nice to see you posting! Have a great New Year!
    Carl

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  • Mike Reeter
    Mike Reeter Posts: 4,315
    edited December 2010
    schwarcw wrote: »
    Greetings Mike!

    Nice to see you posting! Have a great New Year!

    Happy New Year to you also Carl!!!
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  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited December 2010
    I'm not familiar with that AVR, but make sure that it has pre-outs to connect the amp to.

    Bi-amping with an AVR is a complete waste of time, and contains absolutely no benefits.

    I've heard the Rotel 1582 before, and I was quite impressed by it. Very balanced sound overall.

    I haven't heard the 1572, but I'd love to get my ears on one sometime.


    Mike Reeter wrote: »
    I can tell you for a fact,the 12's are POWER HUNGRY...Polk recommends up to 500 wpc...good luck,I hope you didn't eff' things up by driving them with a receiver.

    I don't see how he could have "effd things up" by driving them with a receiver.:confused:

    Yes, the 12's are power hungry and need a lot of power to sound their best...but that doesn't mean that they can't easily be driven by an AVR. The 12's are 8 ohms nominal, and relatively efficient...thus, they're fairly easy to drive. Driving them with an AVR isn't going to "eff things up". Is it going to be pushing them to their full potential? No, not in the slightest...but it isn't going to hurt anything. This isn't like the issues that people have when trying to drive LSi's with an AVR
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  • Mike Reeter
    Mike Reeter Posts: 4,315
    edited December 2010
    comfortablycurt wrote: »
    I'm not familiar with that AVR, but make sure that it has pre-outs to connect the amp to.

    Bi-amping with an AVR is a complete waste of time, and contains absolutely no benefits.

    I've heard the Rotel 1582 before, and I was quite impressed by it. Very balanced sound overall.

    I haven't heard the 1572, but I'd love to get my ears on one sometime.





    I don't see how he could have "effd things up" by driving them with a receiver.:confused:

    Yes, the 12's are power hungry and need a lot of power to sound their best...but that doesn't mean that they can't easily be driven by an AVR. The 12's are 8 ohms nominal, and relatively efficient...thus, they're fairly easy to drive. Driving them with an AVR isn't going to "eff things up". Is it going to be pushing them to their full potential? No, not in the slightest...but it isn't going to hurt anything. This isn't like the issues that people have when trying to drive LSi's with an AVR

    Curt,you can see where I tried to retrack that comment of mine,I tried to edit...I have a pair of 12's,they may be listed as 8 ohm nominal,but I can tell you for a fact that they are a hard nut to crack...much tougher load than the 2.3TL's or SRS 2's I've had in the past.

    I wonder how many tweeters Polk has replaced over the years because of clipping caused by an under powered AVR.
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  • Joe08867
    Joe08867 Posts: 3,919
    edited December 2010
    Mike Reeter wrote: »
    I wonder how many tweeters Polk has replaced over the years because of clipping caused by an under powered AVR.

    Exactly the problem with under powering a speaker.

    I have blown a couple tweeters in my day using a receiver to power them.
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  • bengi_ap
    bengi_ap Posts: 4
    edited December 2010
    Thx Ben. The room is 17x15 feet. I'm primarily interested in music (so 2-ch Stereo). I like a warm base even at low volumes. Budget is < $2k for now at least - it's the economy. Thx again Ben. I am reluctunt to buy from the after market - just weary - nothing against it!
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  • bengi_ap
    bengi_ap Posts: 4
    edited December 2010
    To be honest - I did. But that's whay I'm looking to get a real amp to drive these hungry ones. Just need to get the right one under $2K - I like warm Strong Bass at low volumes.
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  • bengi_ap
    bengi_ap Posts: 4
    edited December 2010
    Thx Mike!
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  • cfrizz
    cfrizz Posts: 13,415
    edited December 2010
    Either one of those Rotels will do a great job. Welcome to Club Polk.
    Marantz AV-7705 PrePro, Classé 5 channel 200wpc Amp, Oppo 103 BluRay, Rotel RCD-1072 CDP, Sony XBR-49X800E TV, Polk S60 Main Speakers, Polk ES30 Center Channel, Polk S15 Surround Speakers SVS SB12-NSD x2
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  • drumminman
    drumminman Posts: 3,396
    edited January 2011
    I'm a big fan of Odyssey, though they may be a little higher than your budget. Great amps, they're built in Indiana, and they come with a 20 year warranty.

    I have a Stratos with the cap upgrade powering two Def Tech BP 30's - very clean.

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  • Pinktulip7
    Pinktulip7 Posts: 249
    edited January 2011
    bengi_ap wrote: »
    I have a pair of RTi-12's that I purchased over a year ago. I am driving them with a Yamaha RX-V 765 (100W per channel), running 2 outputs to each speaker in bi-amped mode. I am not satisfied with the sound quality and am looking to purchase a Rotel amp to drive them. My local Modia store has the RB 1572 (class-D) and the RB 1582 (class-A&B) amp.

    Looking for advice as to which amp is better for the RTi-12's. Suggestions?
    Dude forget about Bi-Amping,you will wasting time and $$$..just get the Parasound Halo A21 and u will see Speakers start singing right the way.....
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    AMP :2> EMOTIVA UPA-1 200 W
    CENTER :> POLK LSiM 706c 250 W
    SURROUND SIDE :> POLK RTi A3 150 W
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