initial help w/ setting crossovers on speakers

Discussion in 'Speakers' started by calvin_b, Apr 16, 2004.

  1. calvin_b

    calvin_b Stunt Coordinator

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    hi,

    i have an onkyo ht-r500 that has only 3 crossover settings: 80, 100, and 120.

    my speakers are a jlb nsp1-II system. these satellites seem bigger than i assumed. almost the size of bookshelves. i also have a polk psw303 subwoofer.

    i plan on playing around w/ the settings, but where is a good place i can start w/.... maybe even something i can keep it at. set it at 80hz on the receiver and 100 on the sub? thanks.
     
  2. ColinM

    ColinM Cinematographer

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    Try everything. You have nothing to lose...

    Even try running them large, Sub = LR+LFE. You never know what will sound good. But you may settle on 80 for the JBL's and 60ish for the sub...
     
  3. ScottCHI

    ScottCHI Screenwriter

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    if you're using the receiver's crossover, then the sub's crossover should either be bypassed altogether or set as high as possible.
     
  4. Phil Iturralde

    Phil Iturralde Screenwriter

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    80Hz for the AV Receiver is a good start, but if you can, I concur w/ScottCHI recommendation and turn-off the Sub's x-over if you can. If your Polk sub does not have a off (bypass) switch for the x-over then, ... dial that knob to its MAX setting. Hopefully, that will keep it from interfering** with your Onkyo x-over.

    **HT Magazine ('97-'98? by Brent Butterworh) proved that when the sub and AV Receiver x-over are operating close to each other, the sub frequency blend to the speakers were no-where near the ideal ±3.5 dB blend but in all cases it was -10.5 dB or more creating quite a frequency hole (dip)!!!

    Phil
     
  5. calvin_b

    calvin_b Stunt Coordinator

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    thanks guys! im going to get an SPL meter some time this weekend and get things squared away.
     

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