Moisture and cabs

Discussion in 'Amps and Cabs [BG]' started by eukatheude, Jul 6, 2013.

  1. Hi,
    Looking through used amps i found a bargain: an 1x15 cab that the guy made himself with an RCF L15/554 200W. He's selling it for 50€ and from the photos it looks great. I would use it only when gigging, paired with my Ashdown 300W combo, so most of the time i would keep it in a garage which is very moist, would that cause damage?And by the way, is the driver any good?
  2. Not a good plan. Speaker cones are made of paper. I haven't had any speakers rot out myself but I've seen pictures of ones that have. Not pretty!
  3. grey area

    grey area

    Sep 2, 2009
    almeria spain
    i think a moist garage is as much use as a chocolate teapot, not just for your cabs but anything you want to keep in it, tools, motorcycles, kites, etc. i think i would spend a bit and get the garage useable first OR keep your stuff in the house. good luck.
  4. It's an underground garage and the house is not mine (long story). Maybe i can keep it in a big plastic bag or something?
    Any opinions on whether the cone is any good?
  5. HunterBurgan4Me


    Mar 6, 2010
    other option, stick a tablecloth over it and use it as a coffee table
  6. grey area

    grey area

    Sep 2, 2009
    almeria spain
    thats what i've done with stuff that dont fit in the garage, just make sure theres a plastic one under the nice one to stop spills going into the speaker.
  7. I can't use it as a coffee table because it's not my house.
    How can I isolate the cab from the humidity?

    Also, is that cone good?
  8. sjeverett


    May 10, 2013
    Put it im a big plastic bag and get a can of dessicant from a gun or boat shop. That will soak up any moisture in the bag.
  9. grey area

    grey area

    Sep 2, 2009
    almeria spain
    if you can get silica gel( its the stuff that you get in little bags in electronic goods). you put a handfull in a big plastic bag and you should be alright. i leave a bass and rigs in thailand and india and although the stuff in bangkok is fine in just a bag the indian monsoon is savage on my stuff and so its bagged with silica gel and tobacco leaves( against insects) and so far it done the job. if you see the guys from the electricity utilities they might give you a bag full of silica gel.
    ps for a nice big bag ask in the shops that sell iceboxes ( we call em fridges here in euroland)
  10. JimmyM

    JimmyM Supporting Member

    Apr 11, 2005
    Apopka, FL
    Endorsing: Yamaha, Ampeg, Line 6, EMG
    That's a very expensive speaker, but it only does 2k on the top end, so for me it would be out, as I require at least 4k on the top end of a woofer. Sounds muddy and has no attack otherwise. Good for some songs, but I'd rather it be my choice instead of being forced upon me by limitations of the gear.
  11. I understand, though for 50€ IMO it's a great deal. And i can change it later. Since my combo is already a woofer only i would have preferred something that gave me some high end too, but i'm on a budget. :)
    Thanks for the tip on the silica gel.

    EDIT: By the way, the power handling is stated to be 200W with a "mus." (it's in italian) of 400 W. Is that the peak output? Anyway, is that ok with a 300 W amp?
  12. BassmanPaul

    BassmanPaul Inactive

    You may well be able to add a midrange driver to the cabinet at a later date or build a top box for the cabinet. I would at least try it. You may well like what comes out. In this country RCF were known as the Italian JBL.
  13. Adding a midrange driver\tweeter would be complicated since there's no space, but i could sell the RCF and put another one in it. Here are the pics the guy sent me:

    Anything i should look out for when trying it?
  14. BassmanPaul

    BassmanPaul Inactive

    Why change out a perfectly good driver??? If the cabinet sounds good with no "farting" then you should be fine.

    A top box is a cabinet holding mid and high drivers with a suitable crossover. It sits atop the cabinet and brings out the frequencies that the woofer alone cannot.

    Edit: For 50 euro it seems like a good way to go.
  15. JimmyM

    JimmyM Supporting Member

    Apr 11, 2005
    Apopka, FL
    Endorsing: Yamaha, Ampeg, Line 6, EMG
    I'd be a little concerned about being able to see daylight inside the top port because it's probably not the only air leak, but I guess you could seal it with caulk or putty or something. For 50 Euro, though, you could probably sell the speaker for at least that much if you decide it's not for you.
  16. If you can't locate the silca, white rice in a cheesecloth bag will control moisture also. Keep the cab off the floor with bricks, wood can cause moisture to wick up the wood to the cab.
  17. grey area

    grey area

    Sep 2, 2009
    almeria spain
    yea i forgot about rice, it works well and is a lot easier to get than silica gel. just watch out for RAT ACTION.
  18. synaesthesia


    Apr 13, 2004
    Check the material of the cabinet. MDF untreated attracts mould in damp conditions.
  19. TheRealKong


    Mar 17, 2011
    If you pair it with your Ashdown Combo I don't see any problems. The power gets dividet by the parallel speaker outputs, so the cab would not get too much power. Be carefull with too much low end, it the speaker farts out you have to dial down volume or / and bass.

    Maybe the cab sounds fine together with the built in speaker of your combo. Just try it out.

    By the way, whats about impedance? How much Watts @ how much Ohms does your amp have with the built-in speaker / with an external speaker addet? Make sure you come to a save impedance.

    Most amps have a minimum impedance of 4 Ohm. So don't use a 4-Ohm-speaker! Make sure, that your combo speaker has 8 Ohm, than plug in the extension speaker - after making sure (again!) that this is a 8 Ohm speaker, too. Two cabs in 8 Ohm wired in parallel will equal 4 Ohm.


  20. Some craft/hobby businesses can order Silica, as it's widely used for preserving flower petals and leaves. Might look for one in your area.
    After 4 years in a Ft. Lauderdale condo with items stored in an outdoor closet, I have moved all my gear into a heated/cooled storage room. Not cheap but I don't worry about mold or mildew anymore. A slimy cab is not a pretty thing.