Question about crossover

mr2sw21
mr2sw21 Posts: 115
edited May 2009 in Speakers
The question boy is back ^_^

I just bought a new toy a new AV receiver. The Z7 I love it. A big improve them the HT5100 a lot. However, I still have no idea what crossover is. I been reading some web page to explain that but seem like it is speaking totally different language than I do.

So can any one can simply educate me what crossover is?

Mine machine (after the mic thing) it auto set up the front is large so 60hz no choice and all others are small so 80hz but that can change.

So should I change them to higher(I mean a larger number like 120hz I don't know what the max I can put actually)? By the way is higher the better?

Thanks guys,
Post edited by mr2sw21 on

Comments

  • mr2sw21
    mr2sw21 Posts: 115
    edited May 2009
    no one? that must be a dumb question then.
  • Ricardo
    Ricardo Posts: 10,636
    edited May 2009
    The crossover you are talking about is the frequency where the AVR cuts the signal that goes to the speakers, and sends it to the sub; at 60Hz, all frequencies below that will go to the sub, while all frequencies above 60 Hz will be sent to the speakers.

    The trick here is to try to find the right spot that will make your system sound its best. If you have a good sub, and not too powerful AVR, then a higher number will make more sense. This will relief the AVR from power demanding lows that will be handled by the sub.

    Play around and see what you like best. There's a lot more to it but that should get you started.
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  • williamgauci
    williamgauci Posts: 88
    edited May 2009
    Another suggestion would be to change all your speaker settings to Small, this will allow you to adjust the crossover for all your speakers to the same crossover as well as doing what Ricardo says, further reducing the low end load on your receiver and speakers.
    _____________________________________________
    Yamaha 6080 Emotiva XPA-5 CSi A6 RTiA-7's RTi A1's Velodyne DLS-4000R
  • mr2sw21
    mr2sw21 Posts: 115
    edited May 2009
  • ben62670
    ben62670 Posts: 15,969
    edited May 2009
    What speakers are you driving?
    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
  • McLoki
    McLoki Posts: 5,231
    edited May 2009
    At a basic level - a crossover is something that sends only a certain frequency of information to a speaker. As you see, your AVR (Audio Video Reciever) has a crossover in it to send some information to your subwoofer and the rest of the signal to your speakers.

    Your speakers (assuming there is more than one driver in them) has crossovers in them to break up the signal further and send parts of the signal to the individual drivers than handle them best....

    At a base level - the crossover in your AVR is set to 80hz and the crossover on the back of your sub is set as high as it will go. You may want to change the crossover in your AVR up or down based on the capabilities of the speakers you are driving and the amplifier you are trying to use.

    Michael
    Mains.............Polk LSi15 (Cherry)
    Center............Polk LSiC (Crossover upgraded)
    Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
    Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
    Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
    Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)