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  • RCA cable on BL4000 wall bracket

    9dB attenuator built into RCA cable
    Posted to Beolab & Beovox Speakers (MediaGallery) by depe on Sat, Jan 30 2021
    Filed under: wall brackets
  • Re: Surround Sound with Beolab speakers and none B&O TV

    I am not 100% certain, but i believe that the ground must be shorted, no matter whether the amps are class AB or D. I use a prepro from Emotiva with a trigger out, so no noisy USB connection needed. Not sure if your AVR has that port.
    Posted to General Discussion & Questions (Forum) by depe on Thu, Jan 28 2021
  • Re: Chromecast Audio to BeoLab volume

    Hi Ravsted, thanks for your explanation. I will open the speaker once I find my Torx driver. I might be lucky, according to the serial number, the speaker was manufactured around the time when they switched the material. I also have a pair of Beolab 8000 from 1997 which have never seen service. I guess the inside is a mess, despite the speakers still operating well. I start another thread regarding the power conversion.
    Posted to General Discussion & Questions (Forum) by depe on Sun, Jan 3 2021
  • Line voltage conversion Beolab 4000

    Hi, I own Beolab 4000's with European specs (220V) but operate them with 110V line voltage (CAN). I currently use an external step-up transformer, which is ok but far away from being a clean setup. Has anybody modified Beolab 4000 speakers and can advise how to do this? I have no problem with opening the speaker and solder stuff myself. I had a quick look at the service manual. It appears that the standby transformers can be easily reconfigured for 110V by changing fuses (effectively changing
    Posted to General Discussion & Questions (Forum) by depe on Sun, Jan 3 2021
  • Re: Line voltage conversion Beolab 4000

    Hi Keith, my units (I have two pairs) start with 14XXX and 18XXX. The type number is 6636. I guess it means that those are MK1 (which is good) and they have the white foam that does not rot (even better). Is my understanding correct that the standby transformer works for both voltages, given correct application of the fuses. What about the main transformer? Is is one model that fits all or do I need to replace those? Thanks
    Posted to General Discussion & Questions (Forum) by depe on Sun, Jan 3 2021
  • Re: Line voltage conversion Beolab 4000

    Hi Keith, thanks for the info. As suspected, the main transformer needs to be changed. At least according to the above table. Bummer. That could have been entirely avoided by the HW designer. Too bad.
    Posted to General Discussion & Questions (Forum) by depe on Sun, Jan 3 2021
  • Re: Chromecast Audio to BeoLab volume

    Hi Puncher, thank you for brining this to my attention. I have FDR enabled, it makes the sound richer but seems to have no impact on the loudness.
    Posted to General Discussion & Questions (Forum) by depe on Sat, Jan 2 2021
  • Re: Chromecast Audio to BeoLab volume

    Hi Ravsted, I was worried that the signal attenuation would have a negative impact on the sound quality. Great to learn from you that this is a non issue. I am tempted to build the attenuator into the end of the cable, integrated into the RCA connector, as explained here: https://www.instructables.com/Homemade-RCA-Attenuator/ Just requires two resistors and a bit of soldering. Did you consider something like this? Thanks Dirk
    Posted to General Discussion & Questions (Forum) by depe on Sat, Jan 2 2021
  • Re: Chromecast Audio to BeoLab volume

    Puncher: FDR on vs off seems to not change the volume of the speaker.
    Posted to General Discussion & Questions (Forum) by depe on Sat, Jan 2 2021
  • Re: Chromecast Audio to BeoLab volume

    Hi Ravsted, there are different ways to skin the cat - i will keep you posted on my progress. On a very different note, totally off topic. I believe you have opened the BL4000 to replace foam. How delicate is it to open the chassis to get access to the inner parts? I never tried that. My intention is to investigate whether the main voltage can be changed from 220V to 110V. It looks the standby transformer can be re-configured to different mains voltages, but that might not be the case for the main
    Posted to General Discussion & Questions (Forum) by depe on Sat, Jan 2 2021
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