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  1. #1

    Member Sales Rating: (4)

    Join Date
    Jan 2009
    San Antonio

    Default Polk lsi 15 and SDA-1B Yamaha RX-V2700

    I have a yamaha RX-V2700 Receiver and for about the past year I was using JBL HLS820 speakers. I recently purchased a pair of Polk 10B speakers and the sound difference was amazing. There was more base from the JBLs than the 10Bs but it was too boomy. I have even more recently purchased a pair of LSI 15 and a pair of SDA-1B. I have not hooked these up yet and am not yet sure which pair I plan on using. I do plan on keeping the set up as 2 channel only (maybe center later for movies). From most posts that I have read it seems that alot of people use a dedicated amp to power the speakers. Does anybody know if my receiver can adequately drive these speakers or would I be better off getting a separate amp...and if so which one. I dont plan on getting rid of the receiver because of the convenience of HDMI cables in/out for DVD player/Cable/TV. I can't wait to compare the LSI 15s and SDA-1Bs

  2. #2

    Member Sales Rating: (0)

    Join Date
    Aug 2003


    Hobby, welcome. You're the one who's going to know(after you try) if your 2700 drives the Lsi15s satisfactorily. It can be said that for the vast majority of home applications the 2700 has more than enough maximum power capacity. The Lsi15s use about 1 watt for a comfortably loud sound level. Brief peaks on highly dynamic material ,such as some classical recordings , use much more of course, but should still be within the maximum output capacity of the 2700. Beyond these general statements, your listening distance, size of your room, and dynamic range of the material that you listen to are the main factors that will determine the question in your specific application.

  3. #3

    Member Sales Rating: (21)

    Join Date
    Sep 2002
    Deep Down the Rabbit Hole


    It will work but the folks here who actually use Polk speakers like the LSi-15 know that a high current amplifier will improve their sound quality.

    B&K 7270 amplifier
    Polk SWA-500 Subwoofer amplifier
    OppO BDP-83
    Pioneer Elite 50"
    Polk LCi-RTS-105;LCi-RTS-C;LCi-RTSFx;LCi80Fx
    Subs-Twin Polk CSW200

    BAT VK-31SE
    VTL MB-450 Signature monoblock
    Wolcott Presence monoblock
    Musical Fidelity kW SACD
    Rega P25/RB600/Clearaudio Aurum Beta
    Acoustech Phono-Pre
    Sound Lab Millenium ELS
    BillyBags Rack
    MIT S1/3 cables
    Shunyata/PS Audio/Virtual Dynamics Power Cords

    Everthing Matters...Tubes Rule...and It's Over until it's Not Over

  4. #4

    Member Sales Rating: (10)

    Join Date
    Jun 2007
    Cape Cod, Massachusetts


    My RX-V2500 does a reasonable job at driving my LSi15's, but compared to the several amps that I've had the receiver has much less dynamics and overall has something of a lack of musicality. But your 2700 can certainly drive them just so long as you keep the volume level reasonable.
    Speakers: Polk LSi15
    Pre: Adcom GFP-750 with HT Bypass
    Amp: Pass Labs X-150
    CD/DVD Player: Classe CDP-10
    Interconnects: MIT Shortgun S3 Pro XLR
    Speaker cables: MIT MH-750 bi-wire
    TT:Micro Seiki DD-35
    Cartridge:Denon DL-160
    Phono Pre:PS Audio GCPH

  5. #5

    Member Sales Rating: (0)

    Join Date
    Nov 2006


    Get ready for some fun. Before hooking up your SDAs make sure the 2700 is common ground with a multimeter.

    You will likely find that the soundstage is quite different. Not everyone likes SDAs so it will really be up to you which sounds better

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