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  1. #1

    Member Sales Rating: (1)

    Join Date
    Jun 2006

    Default Tip for you folks with duals (maybe)

    I've been playing with REW on my laptop analyzing my subs' response curves.

    Both of my subs have PEQs on them, and I was able to tame a couple of peaks that displayed themselves quite readily when charting both subs concurrently, but not when just testing one individually. Still, my room response chart wouldn't impress anyone with anything other than how loud and low they can go. Flat you would not call it. There is a big dip at the sub-main crossover point that is driving me nuts.

    Anyway, I had the funky idea to test out the curves with the different native tuning selections - I had previously been running both at 16Hz. While on this testing path, I happened to chart the response with one sub at 16Hz and one at 20Hz - the results were remarkably flat and very impressive!

    In short, the best thing I could do to improve my frequency response was to set one sub to 16Hz and the other to 20Hz.

    Anything similar with any of you? Any ideas why? Comments?
    HT/music rig
    Panasonic PX60U 50" plasma
    Yamaha 5990 AVR
    Onix SP3 tube amp
    bunch of Outlaw 2200 monoblocks
    DUAL SVS PB12+/2 subs
    Denon 3910 DVD/SACD/DVD-A
    DirecTV HR10-250 DVR
    Onix Strata Mini mains
    Mirage OM10 surrounds
    Polk CSi5 center
    Polk SC80 rear surrounds
    Samsung BDP1000 blu-ray player

    Bedroom rig
    Jolida SJ302a tube amp
    Denon 2910 universal player
    Onix Ref 1 monitors
    Velodyne minivee

  2. #2
    Member Sales Rating: (30)

    Join Date
    Mar 2006


    Interesting... I'll have to try to run the math on that one. If it sounds good, what a great find. It might be that the different crossovers have different audio curves, and the two interact in just a way that it gives a flat response. Just a few thoughts...

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