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
Is there any documentation about it ?Anyone that has got hold of one ? Any images ?Christian
My re-capped M75 are my precious diamonds.
Christian Christensen: Is there any documentation about it ?Anyone that has got hold of one ? Any images ?Christian
Christian, that's the Stereo Width box which we've dioscussed recently (with Chartz and Classic Audio). I have an original restored one from Frede and Jacques (Chartz) is building his own version soon. Frede has made 10 units of a 'copy' and has sold quite a few of them. See this post;
http://archivedforum2.beoworld.org/forums/p/9885/97265.aspx
From Frede:
http://www.beolab.dk/content/box.html
Are you interested in this for a particular reason?
I can take some pictures of mine but pictures are widely available if you search 'Stereo Width Box'.
Dave.
I think that is the mkI box without the headphone outlet, and which plugs into the centre speaker output of the Beolab 5000.
That is indeed what I'm trying to replicate for myself.
There is no documentation anywhere about it. It is only mentioned in the owner's manual of the Beolab 5000!
Jacques
chartz: I think that is the box without the headphone outlet, and which plugs into the centre speaker output of the Beolab 5000. That is indeed what I'm trying to replicate.
I think that is the box without the headphone outlet, and which plugs into the centre speaker output of the Beolab 5000.
That is indeed what I'm trying to replicate.
In the book I received from Frede, the references to this are:
Center Speaker: 'Your Beolab 5000 has provision for connection of a center speaker, which should be plugged into the CENTER jack. Use of a centre speaker normally requires a B&O Type 6005. Stereo Width Box (Actually 8906005). The adjustable centre speaker makes it possible to increase or reduce the width of the 'stereo picture'. With it, you can vary the reproduction to match the acoustics of the room, the placement of the poing of listening with any respect to the speakers, the programme material and your personal tastes'. There is no mention of ability to use headphones.
In the same book, in a later section when discussing individual components, it says:
'Basis Width Control Box': This unit primarily serves the purpose of controlling centre speaker(s) so that the width of the stero picture is either increased or reduced. The control box is also required for use as an adaptor when a stereo headset is connected to the Beolab 5000.
Now, the paperwork I received from Frede is called 'Center control box MKII' and has the headphone socket but on the actual unit it says 'Stereo Width' and does not plug into the 'centre speaker' outputs but into the 'Speakers 2, L and R' outputs)
Confusing isn't it? As mine is described as a MKII, I can only assume there was a MKI which is probably the one without the headphone socket.
Maybe Frede can clarify this?
If you PM me with your e-mail address, I can send you the paperwork (pdf) I have, including schematics and the user manual/connection instructions I received from Frede.
No doubt Frede will clarify.
The manual I have (in French, but here in English) shows this too:
Yes, that's a picture from the book I have. It is the type 6005 (8906005) and connects to the 'centre speaker' outlet. Contrary to the MKII which does not connect to the centre speaker output.
Thanks so much for your replies :)Very Interesting, how are you huys using it ?, three identical speakers ?Could you tell me more about your setup ?How does it sound `?, experiences?
Christian,
you can see my set-up here on my post from last week:
http://archivedforum2.beoworld.org/forums/t/11952.aspx
You can see the Stereo Width Box to the left, next to the Beolab 5000 and tuner.
I use it exactly as in the Beolab 5000 manual so with a pair of Beovox 5000 speakers with aBeovox 2500 Cube on top of each one and the centre speaker is a Beovox 3000 underneath and in the middle.
It sounds amazing and the centre speaker does add a subtle extra depth to my ears. I think we discussed it more on Jacques thread about his Beovox 5000's. That covered more about the impact of the Beovox 2500's.
If you adjust the box from -3, through 0 and to +3 there is a definite difference in sound. It has to be at '0' to operate as a headphone socket otherwise sound still comes from the main speakers.
What a beautiful setup there, on the pictures !!!Maybe one day in the future I will have a similar !Does the potetionmeter on the box, affect the level in the center speaker, or just the level of stereo width in the Left Right Speaker ?
It will affect volume in the centre speaker and diaphony between left and right speakers.
One question: how about using two speakers (like Beovox 1600, see here) as ambio side speakers instead of one centre speaker, via the same adapter?
They could be attenuated in the lower registers via a high-pass filter - well, one cap - included in the box.
Would this work?
I would be interested in a MK1 stereo box as well. I was thinking about using it with the "ekstra" speaker connection on by beomaster 900. Please keep us updated Jacques!
Wouter
Wouter: I would be interested in a MK1 stereo box as well. I was thinking about using it with the "extra" speaker connection on by beomaster 900. Please keep us updated Jacques!
I would be interested in a MK1 stereo box as well. I was thinking about using it with the "extra" speaker connection on by beomaster 900. Please keep us updated Jacques!
I will. I'm still waiting for the components. I won't have anything to sell though, this being just a personal project!
chartz: I will. I'm still waiting for the components. I won't have anything to sell though, this being just a personal project!
If you provide us with an update on the result I'm more than happy and maybe will try to build one myself
Hi,
The components are here, three resistors and a seven position, two waffer rotary switch. Not sure about the box yet. I will use a tryout folded PVC plate but no PCB, just traditional wiring.
These are the main - and only - components. The switch is a seven position steatite one. There will be captive speaker cables adapted to my system configuration.
The complicated bit was to get the logic of the wiring! The B&O version used a special switch and more resistors that were added or removed according to the position. I managed to simplify the thing (something tells me that Frede has come up with something similar, he appears to use three resistors as well).
Swich over
Do I jeopardize anything else than my musical experience if I connect a speaker, say a BV 1200 or a 3000, to ”centre” on Beolab 5000, without using a Control box between? With a Beovox 3000 socketed I can also link on yet another BV 2500 cube. Some objections?
/***
http://tinyurl.com/qj9cjsf
Not sure about that Dicl<. At least put a 5 ohms resistor in between. Frede might advise. Why on Earth one cannot write ***?
chartz: Not sure about that Dicl<. At least put a 5 ohms resistor in between. Frede might advise. Why on Earth one cannot write ***?
Well, since Saturday, I now has been listening to all kind of music from my Beolab 5000-system and I have altered, as center-speaker, Beovox 1200, Beovox 3000 and Beovox 4000 with a single Beovox 2500 cube in top and now I hardly want to be without this third speaker.
The BV 1200 gave the best complement to the stereo picture, the BV 4000 produced "too much" sound, as did the BV 3000. The later ones took over from the BV 5000 on the wings.
I want to use one of BV 3000 as the center, simply because the manual tells me that... The next step would be to get a Stereo Width Box, or the Stereo Control Unit, which shows up first.
You can not write my name becasue its not only my name, its also the name of what is called "k uk" in Sweden.
tamtapir: The BV 1200 gave the best complement to the stereo picture, the BV 4000 produced "too much" sound, as did the BV 3000. The later ones took over from the BV 5000 on the wings.
Hence the minimum 5 Ω resistor!
chartz: tamtapir: The BV 1200 gave the best complement to the stereo picture, the BV 4000 produced "too much" sound, as did the BV 3000. The later ones took over from the BV 5000 on the wings. Hence the minimum 5 Ω resistor!
Thank you, Jacques. I have fitted a 5 Ohm resistor in the circuit!
You can also play with the speaker's polarities. That's what the box does too (wide/narrow).
Finally, you can replace the 5 Ω with 10 Ω and 20 Ω and listen to the differences. Please do report back what every alteration does!
tamtapir: You can not write my name becasue its not only my name, its also the name of what is called "k uk" in Sweden.
The forum software knows Swedish too! Unbelievable!
Apparently, the French word for *** makes it through...
chartz: tamtapir: You can not write my name becasue its not only my name, its also the name of what is called "k uk" in Sweden. The forum software knows Swedish too! Unbelievable! Apparently, the French word for *** makes it through...
Adaptive Little sucker, this forum.
Anyway. I´ve tried to change the polarity and will return with a report with my experiences. What I dont have tried yet is different resistors. I´ll be back!
Until then, I´ve got two questions:
In this document ( http://www.beolab.dk/content/cube.pdf ), Frede suggest a system with four cubes and two Beolabs. Is it possible to get a similar experience with only one Beolab, if the center speaker is linked to "center" and the second pair BV 2500 are linked to "Speaker 2" (left and right)?
If so, do I require a resistor between Beolab and BV 2500 connected directly to the amplifier?
/Dikc
No resistor in series, but to protect the Cube Frede suggest inserting a 12μF bipolar capacitor, a coil and a resistor between the Beolab and the Cubes.
chartz: No resistor in series, but to protect the Cube Frede suggest inserting a 12μF bipolar capacitor, a coil and a resistor between the Beolab and the Cubes.
It was an interesting document. Did you find it at Fredes website or is it from somewhere else? Very useful, now I have something to do for a while! Thanks, Jacques!
tamtapir: Ohh! Det var ett intressant dokument. Fanns det på Fredes hemsida eller kommer det från någon annanstans?Mycket användbart, nu har jag lite att göra en stund!Tack, Jacques!
Ohh! Det var ett intressant dokument. Fanns det på Fredes hemsida eller kommer det från någon annanstans?Mycket användbart, nu har jag lite att göra en stund!Tack, Jacques!
I don't remember where I got it. Maybe the old forum. Or Frede sent it to me?
I understand "tack", I watched Äkta Människor on TV! Swedish is an interesting language, half way between English and German.
chartz: tamtapir: Ohh! Det var ett intressant dokument. Fanns det på Fredes hemsida eller kommer det från någon annanstans?Mycket användbart, nu har jag lite att göra en stund!Tack, Jacques! I don't remember where I got it. Maybe the old forum. Or Frede sent it to me? I understand "tack", I watched Äkta Människor on TV! Swedish is an interesting language, half way between English and German.
That was a fast quote! I´m working at my computer right now and didnt recognized that I was writing in Swedish in the forum - until I posted. Then I edited, but too late. Well, take it for a lesson in Swedish!
chartz: These are the main - and only - components. The switch is a seven position steatite one. There will be captive speaker cables adapted to my system configuration. The complicated bit was to get the logic of the wiring! The B&O version used a special switch and more resistors that were added or removed according to the position. I managed to simplify the thing (something tells me that Frede has come up with something similar, he appears to use three resistors as well).
Would it be possible to take part of your scheme for this configuration?
I will explain what I did when the prototype is finished, and if it works!
I am fabricating a cheap Perspex box for testing purposes. It will be finished by the end of the week.
But I don't have any centre speaker candidates to test it properly at the moment. I will use an S45.
chartz:But I don't have any centre speaker candidates to test it properly at the moment. I will use an S45.
Be patient my friend, only 2 and a bit weeks to go!
chartz: I will explain what I did when the prototype is finished, and if it works! I am fabricating a cheap Perspex box for testing purposes. It will be finished by the end of the week. But I don't have any centre speaker candidates to test it properly at the moment. I will use an S45.
Centre speaker candidates is the smal problem here. I will follow this thread with pleasure and would be glad to give name the "new" product: The Beoooo.
/cDik
The prototype...
chartz: The prototype...
Cant wait to hear how it works.
/Dcik
The 'JF MKI'. Well done Jacques, I hope it works OK.
Top side. Only a prototype, so very approximate finish.
Great work - Chartz
Looks very fine - is the functionality as expected?
/Frede
Yes, but my Beovox 3000 is not here yet, so the definite 'yes' will have to wait!
Thanks!
chartz: Yes, but my Beovox 3000 is not here yet, so the definite 'yes' will have to wait! Thanks!
*Want*
*Need*
/Dkic