Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Results 1 to 10 of 10
  1. #1

    Member Sales Rating: (0)

    Join Date
    Apr 2013
    Posts
    3

    Default Which Receiver for Polk Audio SDA-2 Speakers?

    Hi guys,

    First time poster here.

    I recently acquired my father's Polk Audio SDA-2s (I think 2Bs, to be exact) and although they sounded fantastic running through his home setup, they're not so great on mine. Don't get me wrong, they sound nice but not as nice as I'd like them to sound.

    I'm currently running them through a Pioneer VSX-921K in stereo and I'd like to upgrade to a more powerful and better sounding unit. I've been told to look for an old amp and receiver but I'd like to incorporate these speakers into a 7.1 or 7.2 setup and the Onkyo TX-NR818 is right in my budget.

    Thoughts?

  2. #2

    Member Sales Rating: (49)

    Join Date
    Jan 2009
    Location
    Wyred 4 Sound
    Posts
    11,034

    Default

    You need an external amp to make them shine. Not sure if your receiver has pre outs but if it don't I would get one that does get a amp sit back and smile..
    Hot Rodded SDA 1.2TL's, SDA 1C's, SDA CRS+'s...
    Powered By Wyred 4 Sound, STP-SE, SX-1000...
    MIT-Shotgun's ...

  3. #3

    Member Sales Rating: (0)

    Join Date
    Jun 2011
    Location
    Manteca, CA
    Posts
    131

    Default

    I agree, need an amp.

  4. #4

    Member Sales Rating: (0)

    Join Date
    Mar 2011
    Location
    Iowa
    Posts
    2,380

    Default

    What was your fater running them off of?

  5. #5

    Member Sales Rating: (0)

    Join Date
    Mar 2012
    Location
    MAINE
    Posts
    2,680

    Default

    This is what i did with the ones i had--- i had a denon HT receiver. I went and bought a power Denon 200 watt amp. It worked fantastic.. SDA2b speakers need POWER to get them to sing for you....there are lots of methods you can do. DO NOT UNDERPOWER THEM. You came to the right place. Spend some time here and you will enjoy those fine speakers------WELCOME
    RANDY
    ~SDA2b Adcom gfa555 565pre 555t 600cd Pioneer PLa35d
    ~SDA1c Denon POA2200 Yamaha RX-V1(gold) HK25 AT-LP120tt-HT 4/rs Cs400i/cc Premier Acoustic PA-150 subwoofer
    ~Marantz 2252b 5025b 6300tt Tech-a4010s monitor 7b
    ~Yamaha cr2040 Advent2 Monitor 10a
    ~Rotel RV555 monitor 4 series 2 -office-
    ~Pioneer seQ404 2-4channel headphones

  6. #6

    Member Sales Rating: (0)

    Join Date
    Mar 2012
    Location
    MAINE
    Posts
    2,680

    Default

    If im right they need 50+ CONSERVATIVE PLUS WATTS PER CHANNEL---AND WILL WANT MORE TO GET BEST QUALITY OUT OF THOSE FINE SPEAKERS---- there are people here that will help you with your journey. ENJOY
    Last edited by boston1450; 04-05-2013 at 06:45 PM.

  7. #7

    Member Sales Rating: (0)

    Join Date
    Oct 2003
    Posts
    868

    Default

    I think posted this on AVS as well... Like others have mentioned, the SDA speakers require a LOT of power. They are very low impedance speakers and most AVRs cannot handle the load. If you plan to run them in multi-channel mode, the speakers will suck the life out of the amp and sound terrible.

  8. #8

    Member Sales Rating: (0)

    Join Date
    Apr 2013
    Posts
    3

    Default

    Thanks for the help guys!

    My father was running then through an old Sony amp and a marantz receiver. That being said, he did try running them throught just the Maranrz and couldn't hear any degradation an quality.

    So, the general consensus is That these speakers need an amp, but does that hold true for an AVR putting out 250 watts at 4 ohms per channel (TX-NR818)? I will only be using this receiver on a 2.0 setup until I move and maybe then invest in an amp.

  9. #9

    Member Sales Rating: (13)

    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    30,424

    Default

    Quote Originally Posted by RockCrayfish View Post

    My father was running then through an old Sony amp and a marantz receiver. That being said, he did try running them throught just the Maranrz and couldn't hear any degradation an quality.
    I would suspect the Sony amp wasn't very good.

    So, the general consensus is That these speakers need an amp, but does that hold true for an AVR putting out 250 watts at 4 ohms per channel (TX-NR818)? I will only be using this receiver on a 2.0 setup until I move and maybe then invest in an amp.
    That AVR doesn't put out anywhere near what you think it does. In fact, it is not rated to drive 4 ohm loads at all.

    As you can see it is rated for 6 ohms at 1 kHz only and the power drops slightly.

    Front L/R 135 W (8 ohms, 20 Hz-20 kHz, 0.08%, 2 channels driven, FTC)
    125 W + 125 W (6 ohms, 1 kHz, 0.7%, 2 channels driven, FTC)
    Worthless specs and note that is only one channel driven.

    Dynamic Power 300 W (3 ohms, 1 ch)
    250 W (4 ohms, 1 ch)
    150 W (8 ohms, 1 ch)
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  10. #10

    Member Sales Rating: (0)

    Join Date
    Apr 2013
    Posts
    3

    Default

    I did find out that the amp he was, and still is, using is a Sony TA-N55ES. Maybe I'll look for an amp with similar specs and cut my receiver budget back a little..

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. Need Help which receiver for my polk speakers??
    By filoco85 in forum Electronics
    Replies: 9
    Last Post: 04-11-2012, 10:08 AM
  2. Will my receiver handle two Polk Audio Monitor 70's?
    By shermanator in forum Speakers
    Replies: 123
    Last Post: 01-19-2012, 08:46 PM
  3. Need Help polk audio RTi A9 and poineer sclx82 receiver
    By zazaw7 in forum Basic Hookup/Wiring Questions
    Replies: 4
    Last Post: 09-14-2010, 03:08 PM
  4. Replies: 13
    Last Post: 04-21-2008, 04:25 AM
  5. Replies: 21
    Last Post: 09-27-2007, 09:19 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts