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How to disconnect tweeter?

Discussion in 'Amps [BG]' started by shawshank72, Jul 18, 2013.


  1. shawshank72

    shawshank72

    Joined:
    Mar 22, 2009
    Location:
    Canada
    I have a yorkville xm200 and possibly getting the extension cab for it as well as a few are for sale up here.
    Since the combo dosent have a tweeter adjustment knob i want to disconnect the tweeter(s).
    Is it as simple as taking off the grill and pulling the tweeter out and cutting a wire?
    Will it just make the 15 a full range speaker?
    Thanks.
     
  2. audioglenn

    audioglenn Gold Supporting Member

    Joined:
    Jul 14, 2012
    Location:
    Pennsylvania
    There is probably a crossover in the cabinet. You may not have to cut the wires. Many times the wires are terminated with connectors that will just slide off. Do that if you can. That way if you ever go to sell it in the future, you can re-connect them if you want.
     
  3. shawshank72

    shawshank72

    Joined:
    Mar 22, 2009
    Location:
    Canada
    Thanks. I hope so, that seems easy as can be.
     
  4. Floyd Eye

    Floyd Eye Banned

    Joined:
    Feb 21, 2010
    Location:
    St. Louis
    I'm not familiar with your cab, but I would check to make sure you aren't changing the impedance by removing the tweeter.
     
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  6. shawshank72

    shawshank72

    Joined:
    Mar 22, 2009
    Location:
    Canada
    Easy as hell. Wires just pulled right out.
    Thought it would be more involved than that.
    Sounds so much better.
     
  7. Pilgrim

    Pilgrim Supporting Member

    Joined:
    Jul 8, 2004
    Location:
    Fort Collins, Colorado
    I trust that you insulated the ends so they can't short out on anything, right?
     
  8. shawshank72

    shawshank72

    Joined:
    Mar 22, 2009
    Location:
    Canada
    They had rubber insulation on them.
    Only way to touch metal is to slide it into the rubber mold.
     
  9. T-Bird

    T-Bird

    Joined:
    Apr 29, 2007
    Location:
    Finland (Northern Europe)
    Hi.

    Not quite, and no.

    You obviously can, as you already did, just cut the tweeter from the circuit, but that seldom -if ever- works well in the long run.

    Unless there's a dedicated cross-over there and a "real" hi-frequency horn, all You'll do is to reduce the cab's high frequency sensitivity and directivity.


    If You mean You just pulled the tweeter leads off, doing it the right way would've been a bit more involving, but not by much ;).

    Because:

    Do remove the tweeter and the possible cross-over (even if it's just one cap or just a few parts) from the signal chain by connecting the speaker leads just to the woofer.

    Rgards
    Sam
     
  10. PawnBass

    PawnBass

    Joined:
    Jul 15, 2013
    It depends on what the crossover looks like. If it's only a capacitor, or a capacitor with a resistor in parallel with the tweeter, then you can pull the tweeter. But if the crossover is made up with inductors as well, you can't pull the tweeter straight, or the amp will short circuit. In that case, and to play it safe in all cases, disconnect wires in the crossover in the earliest stage, closest to the amp.
     
  11. TheRealKong

    TheRealKong

    Joined:
    Mar 17, 2011
    BTW, disconnecting the tweeter will not change the impedance of the cab.

    Ciao

    Uwe
     
  12. JimmyM

    JimmyM Supporting Member

    Joined:
    Apr 11, 2005
    Location:
    Apopka, FL
    Disclosures:
    Endorsing: Ampeg Amps, EMG Pickups
    That's the intended result!
     
  13. Bassamatic

    Bassamatic keepin' the beat since the 60's

    Joined:
    Dec 7, 2007
    Location:
    Studio City, SoCal, USA
    Ideally, you should replace the tweeter with a load resistor, or remove or bypass the crossover completely.
     
  14. JimmyM

    JimmyM Supporting Member

    Joined:
    Apr 11, 2005
    Location:
    Apopka, FL
    Disclosures:
    Endorsing: Ampeg Amps, EMG Pickups
    Bypassing the crossover does allow you to get any remaining high frequency response out of the woofer(s) that may be getting cut off by the tweeter circuit.
     
  15. KeithAlanK

    KeithAlanK

    Joined:
    May 29, 2009
    Location:
    San Antonio Texas
    The Yorkville XM200 has a piezo tweeter (Google it) so there's no crossover at all. Piezos reject frequencies below their cutoff point automatically and usually use a simple parallel connection.
    It's probably closer to it's nominal rating without the tweeter, since most bass drivers are 4 or 8 ohms.

    Y'all are over-thinking this stuff.

    Bottom Line = Happy Modder
     
  16. KeithAlanK

    KeithAlanK

    Joined:
    May 29, 2009
    Location:
    San Antonio Texas
    I plan to bypass the tweeter and x-over in my cab(s) for this reason, and it's a valid point for many people looking for better mid/high response vs brittle tweeter highs.
    If you don't overload your bass drivers with very low freq content they can manage to put out a surprising amount of rich and useful higher freq information.
    Trying to make a single 15" sound like a PA sub is the other side of this coin. I call tails.
     
  17. Steve Dallman

    Steve Dallman Supporting Member

    Joined:
    Mar 5, 2006
    Location:
    East Central Wisconsin
    It IS a piezo tweeter. There is no crossover. As with most bass cabinets with tweeters, the woofer runs full range...no crossover.
     
  18. T-Bird

    T-Bird

    Joined:
    Apr 29, 2007
    Location:
    Finland (Northern Europe)
    Hi.

    I don't see it as over-thinking, but as directing people to better practices when removing sections of electrical circuits.

    People are IMO way too eager to take the easiest route possible, and in a more complex circuit the easy route could cause troubles. "Cutting from the source" however works safely every time.

    This has indeed been discussed previously, and I do know I'm in the minority with my line of thinking over here, but that is not going to make me stop :).

    Regards
    Sam
     
  19. bassbenj

    bassbenj

    Joined:
    Aug 11, 2009
    Boomie is right about this. Some tweeters (piezo) are their own crossovers. Those you simply disconnect. Bass speaker runs full range.

    Some voice coil tweeters just use a single capacitor for a crossover. Basically all it does is keep lows out of the tweeter to keep from over heating it. Those you just disconnect.

    But if you've got a top of the line system the crossover will be more complex and will keep highs out of the bass speaker (the range where it gets flakey) and lows out of the tweeter (to protect it). The bottom line is that if you just disonnect the tweeter the bass driver will still have all the highs rolled off and may sound "tubby". To cut out the tweeter in such a cab you have to disconnect the whole crossover and reconnect the bass speaker to the input line. A somewhat more complex operation. If I had a rig like that...Oh wait! I DO have a rig like that, my solution is/was to install a volume pot (it's called a volume L-pad or something like that and has to be of wattage to match tweeter rating) on the tweeter so I can turn it down rather than simply remove it. That way I can find the balance of highs and lows I'm looking for. (I really don't think I've changed the setting since I first installed it and found the "sweet spot".

    One final word. I've got some of those standard piezo tweeters you see everywhere intalled on this and that cab and I've found them to all be WAY too loud and hence too bright to match decent bass drivers. My trick is to always install them in pairs wired in series which cuts the volume down to just about the right level.
     
  20. KeithAlanK

    KeithAlanK

    Joined:
    May 29, 2009
    Location:
    San Antonio Texas
    My point is that many answers to the OP's question go on and on about stuff that doesn't apply to his situation.

    Answer the question with the pertinent facts.
    Seems like everyone got all theoretical without researching the cab first.

    When somebody asks the same question but their cab has a crossover, educate away. Otherwise, simple answers for simple questions so you don't freak out or confuse people.
     

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