BIC Venturi Formula 4 recap and restoration

Discussion in 'Speakers' started by Jeremy Pare, May 22, 2018.

  1. JayPare

    JayPare AK Subscriber Subscriber

    Messages:
    259
    Location:
    Montreal, Qc, Canada
    I'm looking to give a second life to a pair of BIC Venturi Formula 4 that I got in a bundle with a TT and 2 stereos receiver. I read on some forums (including this one) that the first thing to do with those is to recap the crossover. Therefore, I'm wonder which on I need to replace. I'm attaching pictures of crossover itself and a sticker I found inside the speakers.

    After this, I'm looking to maybe replace the tweeters as they don't look so good. I'm attaching a picture of one of them also. Maybe I can do something to them to give them a brand new look, but I don't mind replacing them is this is not possible (with someone really similar to them, I don't want to change to much the original sound of the speakers).

    IMG_20180522_204257.jpg IMG_20180522_202152.jpg IMG_20180522_202109.jpg
     
    Last edited: May 22, 2018

     

    Please register to disable this ad.

  2. faber12

    faber12 Super Member

    Messages:
    4,226
    Location:
    Northwest Ohio
    Welcome to AK, but I can't see any pictures?
     
    Jeremy Pare likes this.
  3. JayPare

    JayPare AK Subscriber Subscriber

    Messages:
    259
    Location:
    Montreal, Qc, Canada
    @faber12 just edited my post. Sorry about that.
     
    faber12 likes this.
  4. homebrew

    homebrew Active Member

    Messages:
    263
    I'd go ahead and replace the yellow and silver capacitors with upgrades like Audyn. And if at all possible, separate the inductor coils better. At the very least, flip middle inductor on it's edge. When inductors are oriented like yours, there can be interactions that can change the inductance of one or more coils.

    Finally, if you're replacing tweeters, replace both and replace with the exact equal. Otherwise the crossover/tweeter may not function properly.
     
    Jeremy Pare likes this.
  5. faber12

    faber12 Super Member

    Messages:
    4,226
    Location:
    Northwest Ohio
  6. JayPare

    JayPare AK Subscriber Subscriber

    Messages:
    259
    Location:
    Montreal, Qc, Canada
    Should I replace the coils also? And how do I separate them better. Sorry for the n00b questions. Should I also replace the thermistor?

    Thanks for your help.
     

     

    Please register to disable this ad.

  7. faber12

    faber12 Super Member

    Messages:
    4,226
    Location:
    Northwest Ohio
    I would not replace the inductors, they don't usually go bad. Standing the middle one on edge is a good idea. I would probably try to replace the thermistor, if the cost is minimal.
     
    Jeremy Pare likes this.
  8. fredgarvin

    fredgarvin AK Subscriber Subscriber

    Messages:
    1,226
    I had those years ago. The tweeter really puts out little top end sound, most of it coming from the horn. What I did was replace it with a higher sensitivity dome tweeter, I don't remember if it was Peerless or Phillips, which was louder and was an improvement to the sound. Clumsy approach I know. Maybe you could tweek the crossover to a lower crossover point to the tweeter, and less resistance? I'm not the one to ask how though.
     
    Jeremy Pare likes this.
  9. JayPare

    JayPare AK Subscriber Subscriber

    Messages:
    259
    Location:
    Montreal, Qc, Canada
  10. StimpyWan

    StimpyWan AK Subscriber Subscriber

    Messages:
    4,399
    Location:
    Blue Ridge Mountains!
    Parts Connexion, is out of Canada. They carry Mundorf NPE's; the E-Caps. Madisound has Bennic NPE's, which are also very good. Plus, Erse and Parts Express carry a wide range of capacitors too.
     
    Jeremy Pare likes this.
  11. JayPare

    JayPare AK Subscriber Subscriber

    Messages:
    259
    Location:
    Montreal, Qc, Canada
    Do you know the one I posted earlier? It would save me all the waiting. If they are ok but more or less recommendable, I might end up up using them while waiting for the other.
     

     

    Please register to disable this ad.

  12. StimpyWan

    StimpyWan AK Subscriber Subscriber

    Messages:
    4,399
    Location:
    Blue Ridge Mountains!
    Sorry. While I looked at your link, when first posted, that's a brand of capacitor that I've not heard about. The specs seem fine, so I don't see a reason not to try them.

    Play around with new caps (if you want), after you've had some time with the refurb'ed speakers. Easier to hear changes then, if you decide to upgrade later.
     
    Jeremy Pare likes this.
  13. JayPare

    JayPare AK Subscriber Subscriber

    Messages:
    259
    Location:
    Montreal, Qc, Canada
    Thanks! I will go get them after work and try them tonight! :)
     
    StimpyWan likes this.
  14. JayPare

    JayPare AK Subscriber Subscriber

    Messages:
    259
    Location:
    Montreal, Qc, Canada
    Ok recap is done! However, I still hear a "sshhhhh" coming from the horns even if volume is closed. Is it normal? I'm also attaching pictures of the recap. I did the two top one as others are film. I will eventually replace them too but for now it was more for a testing purpose.
    IMG_20180523_210755.jpg
     
    Last edited: May 23, 2018
  15. ivandezande

    ivandezande Super Member

    Messages:
    1,947
    Location:
    Twin Cities
    The noise is your amp not the speakers.
     
    Jeremy Pare likes this.
  16. JayPare

    JayPare AK Subscriber Subscriber

    Messages:
    259
    Location:
    Montreal, Qc, Canada
    Also, tweeters seems to be fine. However, I hate their look and the brownish ring. Is there anything I can put over the brownish part or or any grill I could put over the whole tweeter? I saw some tweeters of those kind comes with a grill, but is there a way to buy the grill separately?
     

     

    Please register to disable this ad.

  17. darkblue94

    darkblue94 It wasn't me. Subscriber

    Messages:
    9,054
    Location:
    The Pacific Northwest
    There should be a grill that covers the whole front of the speaker, that would take care of the problem with the visuals. N'est pas?
     
    Jeremy Pare likes this.
  18. JayPare

    JayPare AK Subscriber Subscriber

    Messages:
    259
    Location:
    Montreal, Qc, Canada
    Unfortunately those speaker covers all have deteriorated with time and it's pretty much impossible to find some! I might end up doind custom covers but I kinda like the rest of the speaker look. So if I could hide that ugly brownish ring I would be happy! :)
     
  19. darkblue94

    darkblue94 It wasn't me. Subscriber

    Messages:
    9,054
    Location:
    The Pacific Northwest
    Maybe some paint then?
     
    Jeremy Pare likes this.
  20. homebrew

    homebrew Active Member

    Messages:
    263
    Fabricating new grilles shouldn't be difficult. A frame can be constructed out of 3/8" plywood.
     
    Jeremy Pare and darkblue94 like this.

Share This Page