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  • Beovox P45 tweeter issue?

    There's plenty of threads on P45 woofers, but I seem to have run into an issue with a tweeter... I noticed one of my P45's sounds a bit weaker. Measured with a tablet app it plays 1-2 db lower on average. In addition there seems to be a hint of distortion in the high frequencies, the sound a bit less crisp and a slight buzzing when playing trumpets (I'm testing this with some 60ies hard bop), so I think it is the tweeter. I started noticing this since I got a better phono preamp and one
    Posted to Vintage Products (Forum) by peternovy on Wed, Apr 3 2019
    Filed under: beovox P45
  • Re: How to tell all drivers are original on Beovox MC120.2?

    I'm resurrecting this old thread since I am looking at a particular pair of Beovox MC120.2, but not everything looks 100% certain: - the cap on the woofer is shiny, has a similar texture as the midrange/phase link driver, I always saw those caps being matte - the woofer have been refoamed but the surrounds seem to look narrower than usual. A pic is below. Can you guys confirm these are worth the investment?
    Posted to Vintage Products (Forum) by peternovy on Tue, Jan 22 2019
  • Re: How to tell all drivers are original on Beovox MC120.2?

    Yes, precisely, that's the look I am familiar with - that probably means it is safer to pass on the ones I posted. Thanks!
    Posted to Vintage Products (Forum) by peternovy on Tue, Jan 22 2019
  • Re: How to tell all drivers are original on Beovox MC120.2?

    Yes, precisely, that's the look I am familiar with - that probably means it is safer to pass on the ones I posted. Thanks!
    Posted to Vintage Products (Forum) by peternovy on Tue, Jan 22 2019
  • Re: Beomaster 3400 - sudden hum from the speakers

    Thanks for the support, Martin. I know what you're suggesting is the proper way to do it, but it will require some patience and a skilled tech. What I can say is that I gave the previous techs the complete manual and schematics (BM2000+BM3400) and they have set the idle current according to the specifications. The cooling fins are at normal temperature the whole time, don't even get warm to touch (they did in fact become hot quickly before the service). I imagine that, for instance, there
    Posted to Vintage Products (Forum) by peternovy on Sat, Sep 22 2018
  • Re: Beomaster 3400 - sudden hum from the speakers

    Just an update, even though it has been a while... Shortly after I wrote the above posts about the hum the front right channel went out, so I took the Beomaster back in for service. It just came back, it took six months (the vintage audio people around here seem to be overwhelmed with the amount of work they get). They replaced the balance potentiometer with the one I got from Martin and also changed the filter caps - they were the only capacitors that were not replaced the previous time. Thanks
    Posted to Vintage Products (Forum) by peternovy on Sat, Sep 22 2018
  • Re: Bought some P45's - Lots of questions!

    The synergy between modern and vintage is not always perfect, as far as I know. I myself am using exclusively vintage equipment, so can't comment much on this. Perhaps changing the capacitors might help. Martin (Dillen) should be able to help you with this. One last easy thing to check, if haven't done it already, is that modern often amps have a speaker impedance setting and the P45s are 4Ohm so it is best to check the amp is putting out the correct amount of current.
    Posted to Vintage Products (Forum) by peternovy on Mon, Jul 30 2018
  • Re: Bought some P45's - Lots of questions!

    As for the more technical issues such as capacitors, dampening foam, terminal removal you'll need to hear from the experts here, but it is strange that they sounded great at the seller's place but not at your place. I imagine there might be a few reasons: maybe they are connected out of phase, or perhaps your amplifier is the culprit? As for the woofers, if they are working when driven and the cone moves smoothly without any rubbing when pressed gently then probably they are OK. If you build
    Posted to Vintage Products (Forum) by peternovy on Mon, Jul 30 2018
  • Re: How to tell all drivers are original on Beovox MC120.2?

    I wish this would be the case, but where I live vintage B&O is primarily imported by firms/people specializing in vintage audio equipment, you cannot get it here from a long-time owner or at a yard sale, unfortunately. There was no B&O behind the iron curtain ;) So my only options are places like local auction sites or perhaps even ebay. The sellers might swap the driver trying to get a better price for a nice looking speaker, or perhaps not even know themselves the drivers were replaced
    Posted to Vintage Products (Forum) by peternovy on Fri, Jul 13 2018
  • Re: How to tell all drivers are original on Beovox MC120.2?

    Thanks a lot Martin! I will keep that photo as a reference. I doubt unfortunately that I'll have a chance to look at the magnet side before pulling the trigger on a purchase, so this will have to do. But it is already incredibly helpful. (If I manage to find a pair they will be my 7th pair of B&O speakers). And by the way, the soft cone posted earlier is indeed from my Beovox S50, I got a very good deal on them with the original stands and in great condition, although I needed to refoam them
    Posted to Vintage Products (Forum) by peternovy on Fri, Jul 13 2018
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