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
tamtapir: *Want* *Need* /Dkic
*Want*
*Need*
/Dkic
Err... What?
Jacques
I am glad to report that the box works nicely, it is now plugged to the 'centre' speaker output and linked to some speaker (an Arcam one, 8Ω) of comparable, perhaps a little lower, sensitivity. The effect does change according to position. I would not say it is spectacular, because of speaker mismatch, but hey it works that's for sure!
What's funny is that the centre speakers makes itself little known unless you get your ear close to it. Then you realise it's working at a normal sound pressure level! It is the addition of both channels, so it's mono. Inverting polarities changes depth perception.
Now what will another Beovox of the same vintage bring?
Here +2 wide.
Well done Jacques. Only a week or two until you get the Beovox 3000 to try it properly. Today, my box was on +2 too.
Dave.
That was good news! Very well done!
/Dikc
http://tinyurl.com/qj9cjsf
Now working on diagram and instructions... A busy weekend - the Lumiere Film Festival in Lyon - postpones that a little, sorry!
That looks very good Jacques! I will be waiting patient for the diagram and instructions!
Wouter
Hi Wouter!
I now have a second beta tester (Tamtapir) before the final how to is posted here, but I can send you the diagram. I'll send it to you via email.
Keep that BC for me please, by the way! Thank you!
chartz: Hi Wouter! I now have a second beta tester (Tamtapir) before the final how to is posted here,
I now have a second beta tester (Tamtapir) before the final how to is posted here,
Parts are ordered and under delivery from the Swedish supplier ELFA.
/Dikk
Did you manage to find a 7-position rotary swich like me Dii<I<?
chartz: Hi Wouter! I now have a second beta tester (Tamtapir) before the final how to is posted here, but I can send you the diagram. I'll send it to you via email. Keep that BC for me please, by the way! Thank you!
Great! I will wait for the results! Unfortunately I just found out that the "ekstra" sound output on a bm 900 is only the right channel... I have to think of something!
The bc will be waiting for you.
Maybe this website can help determining the differences in stereo image.
chartz: Did you manage to find a 7-position rotary swich like me Dii<I<?
No. I will use a slightly less slick, slightly less quick solution consisting of a 2-way switch and a 4-way rotary swich- ("for the moment...").
Please feel free to email me the designation on your 7-way switch.
/Duck
This is the Beoooo, deigned by Jacques (chartz) and built my myself.
There is a significant difference in how I experience the sound in the seven different settings and I think I found one or two favorites. This is absolutely a "must have" in a Beolab system!
Well done, Jacques!
/***
Good, good!
Now we don't want to compete with Frede's superb box, do we? - so I feel we should obtain his permission before publishing anything.
chartz: Good, good! Now we don't want to compete with Frede's superb box, do we? - so I feel we should obtain his permission before publishing anything.
I've gotten a few requests for this construction, but have not disclosed anything at all, not even shared your drawing. As far as I understand it, YOU own the rights to this thing and it's up to YOU what to do with it.
I'm just grateful that I was admitted to take part of it so I could build my own! Thank you for that!
This is non-rocket science as its best!
tamtapir: As far as I understand it, YOU own the rights to this thing and it's up to YOU what to do with it.
As far as I understand it, YOU own the rights to this thing and it's up to YOU what to do with it.
The schematics are B&O's originals, and Frede did send them to me...
But I can send Wouter the diagram now!
chartz: tamtapir: As far as I understand it, YOU own the rights to this thing and it's up to YOU what to do with it. The schematics are B&O's originals, and Frede did send them to me... But I can send Wouter the diagram now!
Ok! I thought you had designed and made the drawing. Yes, then it's a completely different situation.Wouter has not asked me about it, but I think he did wrote earlier in this thread. If more people ask me, it is free to share your drawing? I used a 2pol8pos switch and therefore I have a position that I don't use. Not so neat. Where did you get your 2pol7pos switch?
tamtapir: This is the Beoooo, deigned by Jacques (chartz) and built my myself. There is a significant difference in how I experience the sound in the seven different settings and I think I found one or two favorites. This is absolutely a "must have" in a Beolab system! Well done, Jacques!
That looks a totally classic period piece and with a B&O badge, vintage colour and naming. I love it. Great job.
They do make a difference don't they?
tamtapir: Ok! I thought you had designed and made the drawing. Yes, then it's a completely different situation. Wouter has not asked me about it, but I think he did wrote earlier in this thread. If more people ask me, it is free to share your drawing? I used a 2pol8pos switch and therefore I have a position that I don't use. Not so neat. Where did you get your 2pol7pos switch?
Ok! I thought you had designed and made the drawing. Yes, then it's a completely different situation.
Wouter has not asked me about it, but I think he did wrote earlier in this thread. If more people ask me, it is free to share your drawing? I used a 2pol8pos switch and therefore I have a position that I don't use. Not so neat. Where did you get your 2pol7pos switch?
Yes I did do the new diagram, because B&O used a completely different switch and four resistors, and I've never seen one in reality. I got my switch on eBay UK.
Dave Farr: tamtapir: This is the Beoooo, deigned by Jacques (chartz) and built my myself. There is a significant difference in how I experience the sound in the seven different settings and I think I found one or two favorites. This is absolutely a "must have" in a Beolab system! Well done, Jacques! That looks a totally classic period piece and with a B&O badge, vintage colour and naming. I love it. Great job. They do make a difference don't they? Dave.
Yes, it really makes a difference. If one imagines the soundstage as the line between the stereo speakers from the top with the extra speaker between them, on the line, is this schematic pictures from below of how I perceive the difference:
First, with the knob in "idle", or "0" whatsoever, there is no impacton the soundstage.
Then, with the knob turned to "wide", the picture gets different, more and more in thre steps. The phases is now shifted to the center speaker.
And at last, with the knob turned at "wide", the soundstage get closer.
A real nice gizmo!
How far apart are your main speakers?
Mine are quite close at 1.9 metres centre to centre so I don't think I get the full benefits. This is due to the positioning in the room and isn't really open to change at the moment.
Dave Farr: How far apart are your main speakers? Mine are quite close at 1.9 metres centre to centre so I don't think I get the full benefits. This is due to the positioning in the room and isn't really open to change at the moment. Dave.
From centre to centre about 3,5 metres here.
tamtapir:From centre to centre about 3,5 metres here.
Almost double my distance which will result in more noticable results for you I think. Mine are so close that the centre speaker does get a bit drowned out by the Beovox 5000's. I'll reconfigure the room one day but there isn't the space to move them at the moment.
I'll ask Jacques about his when he visits me on Friday to collect his Beovox 3000 centre speaker I'm donating to him.
Hi,
I will redraw the schematics so that they look more presentable, and publish them here when I have the time. Frede - what a nice person - says it is okay.
I will also give a link or two for components.
Dave Farr: tamtapir:From centre to centre about 3,5 metres here. Almost double my distance which will result in more noticable results for you I think. Mine are so close that the centre speaker does get a bit drowned out by the Beovox 5000's. I'll reconfigure the room one day but there isn't the space to move them at the moment. I'll ask Jacques about his when he visits me on Friday to collect his Beovox 3000 centre speaker I'm donating to him. Dave.
You're probably right about the distance between your speakers and maybe a redecoration, temporary or permanent, is not so easy to do. But if you get the opportunity to get more distance between your Beovox 5000 I can really recommend it: I have the privilege to be able to move together and pulling apart my pair and have noticed that the current distance is preferable.
By the way, and apropos of nothing in particular-which version of Beovox 5000 do you have?
tamtapir:By the way, and apropos of nothing in particular-which version of Beovox 5000 do you have?
I have MK2's. Type 6216 Series 02.
Jacques, Tamtapir,
That looks absolutely stunning! I'd definitely be interested in the schematics! Unfortunately I found out the the "ekstra" speaker output on my beomaster 900 only carries the right signal. I currently use it without the build in speakers as they are made of paper and the paper surrounds will crack completely if played... I need to find a solution for this. However, it gives me the possibility to use the "internal" speaker output for a central speaker, so maybe I should look for a MK2 stereo control box. I'm sorry for hijacking the thread...
Back home! Doesn't it look gorgeous?
Jacques, that looks gorgeous indeed!
Looks great !
Have you listened to it yet ?
It must be this the Danish designers figured out 50 years ago! Lovely! Perhaps the most beautiful set of B&O ever made.
chartz:Hi! I've taken delivery of my Beovox 3000! I was at Dave's place this afternoon (thanks again Dave ) and we had a little B&O tour! This finished off my day nicely, and I got another little gift too, more of which later in the workbench! I'll keep you posted about the sound results.
I've taken delivery of my Beovox 3000!
I was at Dave's place this afternoon (thanks again Dave ) and we had a little B&O tour!
This finished off my day nicely, and I got another little gift too, more of which later in the workbench!
I'll keep you posted about the sound results.
You're welcome Jacques.
Now we need a sound test.
It looks good on stands. I haven't the room to do that where mine is.
Dave Farr: chartz:Hi! I've taken delivery of my Beovox 3000! I was at Dave's place this afternoon (thanks again Dave ) and we had a little B&O tour! This finished off my day nicely, and I got another little gift too, more of which later in the workbench! I'll keep you posted about the sound results. You're welcome Jacques. Now we need a sound test. It looks good on stands. I haven't the room to do that where mine is. Dave.
Yes, a sound test please.
It will be really interesting. I estimate from the picture that Jacques has about 2.5 metres between centres on his BV 5000, i.e. somewhere between yours, Dave and my respective distance. It'll be fun to take part by Jacques impressions.
valve1: Looks great ! Have you listened to it yet ?
Not in earnest, no. Lots of work.
Dave Farr: Now we need a sound test. It looks good on stands. I haven't the room to do that where mine is.
Courtesy of Castorama! There is a thin board underneath that you cannot see, but no, I did not screw the feet directly on the Beovox!
tamtapir: Yes, a sound test please. It will be really interesting. I estimate from the picture that Jacques has about 2.5 metres between centres on his BV 5000, i.e. somewhere between yours, Dave and my respective distance. It'll be fun to take part by Jacques impressions.
That's about right. I was thinking of removing the M70s to take them apart a little further.
Yes, do that. But make a test first with the speakers at their current Place, for the comparison.