ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Having in this forum studied several attempts to correct and repair old speaker elements, is it really worth the time and effort on these very old units, given their poor overall performance?
I recently inherited a couple of Beovox 1000, plus I also had a couple of Beovox 1200 (similar). I removed the disintegrating elements, and decided to see what could be made of the boxes, within reasonable amount of money, <$150 per unit in total cost. I did find that I had to reinforce the front baffle and corners somewhat. I also put in an adjustable port, just in case it would be useful, which it was.
Since the Beovox 1000/1200 has a larger front surface that would allow additional elements, I decided to use a subwoofer, Peerless SBS-160F35AL01-04 ohm, as 6.5" replacement, with a 4" midrange horn Pyle PDB952 and the classical Eminence APT-80, for the highest possible output the box would take. (Using 4 ohm in the bass, increases the drive efficiency with smaller amplifiers.) The 18db/oct. filter was difficult to work out as i had to include notch links to even out peaks and phase distortions,
The end result was not bad at all, the port allowed the subbass to work correctly. The horns provided strong and even output, right up to 18 KHz albeit some directivity compared to domes. but with very little phase distortion, (excellent stereo image), well up into the level of horn studio monitors. Isn´t this the way to go?
Howard_Johnstone:Isn´t this the way to go?
No!
//Bo.A long list...
Yes. If you prefer to do so.
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http://tinyurl.com/qj9cjsf
Is it worth restoring a 1922 Ford T automobile given its poor overall performance ?I suppose, we could put in a german WR12 engine, a Mustang rear end, fit servo brakes and power steering, fourwhite wall radials on polished Fuchs, add Xenon headlights and power curtains, remote controlled central heating anda Hot-spot for your Wi-Fi.If this is your kind of car, then fine with me.
If you want to build your own speakers, why start with something that doesn't fit your needs ?If you want vintage B&O speakers, you are not going the right way in my opinion.Honestly, if you want comments on your DIY work, I suggest you ask in one of the countless DIY speaker fora ratherthan in an enthusiast site for the brand of which you just threw out the main parts of your vintage speakers.
They actually sound pretty good given the right circumstances.- Or would have.
Martin
Agree with Dillen.Changing elements, its not a beovox 1000 ,1200 its something elese.Re-capping them and they sound amazing for their time.Believe it or not, I use Beovox 1000 as surround speakers in my professional studio
My re-capped M75 are my precious diamonds.
What we do here, or most of us in vintage, are restoring B&O as close as possible to original specs, and we do not slaughter any item if saveable.
Using a box from a Beovox to build a new speaker is in my opinion the wrong way to go, first you select your drivers/tweeters what ever, and then according to the specs of your drivers you build the box, not the other way around.
Most Beovox speakers was made for a certain series of amplifiers/receivers and build to fit these, with the tools and materials available at that time.
In my opinion, what you did was destroying a speaker that could have been saved. I have never used more than 50 USD restoring any pair of speakers, that includes caps, surrounds, frets and woodwork.
Collecting Vintage B&O is not a hobby, its a lifestyle.