Evan
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they do sound very good , I mean end game speakers.
You’re making me want a pair of M100s even more. Why do you tease us!!
Glad you enjoyed it and found it useful.
I measured a few of them but not all. The ones I had measured were very close to spec. Unfortunately I think I tossed them so I can’t go back and check – sorry!
I just finished a refresh of this Beomaster 4000. This receiver was a good example of why one shouldn’t just grab a spray can of “contact cleaner/lubricant” and spray indeterminately to fix a noisy potentiometer or switch. Whatever product the previous owner used seeped everywhere inside the receiver then turned into a hard waxy substance. Fortunately, I was able to fully disassemble the receiver and clean the “gunk” out of the chassis, sliders and switches. My plan for the receiver is to pair it with four Braun speakers from the same era. Braun speakers are actually somewhat rare in the US. I like to assemble systems with a theme. This will be my “70’s Euro-system”. I’m guessing that most of the forum members would just call it a “70’s system” 
I’m looking forward to experiencing the Ambiophonic feature. Does anyone have suggestions for era-appropriate recordings that highlight this feature? GlitchNice work. Really clean 4k you have there! I can’t wait to work through my BM4k. I have a BG4002 with CD4 built in and can’t wait to get the duo playing together one day.
I’m back in the US for a little while so I’m trying to sort out one of my other previous acquisitions, BL Penta MK2. They need the full overhaul so I bought all 3 cap kits and new foam surrounds. These will be the main L/R channels in the master bedroom and the basis of a surround system (eventually!).
Looking forward to seeing/reading some more on this project.
Thats ALOT of work ..Let us know how it went Jess
Hey Jess – it definitely was a lot of work and still is! The project lives on when I have time for it.
You can find the full write up here: Evan’s MK2 BeoLab Pentas
Great thread, have been wanting to bring up a similar topic as I have contemplated something very similar.
Inspired by a configuration for architectural speakers by Meridian, I wonder if new life could be breathed into BL6000 and BeoLab 8000 speakers by building trios for wall mounting where space might be an issue for some. Meridian offers customers the ability to “array” their in-wall speakers so their customers with very large spaces / longer than usual listening distances (or need much higher SPL in their room). In their demo theater, Meridian uses three sets of three DSP-750 speakers as the L/C/R behind the projection screen. However they are mounted vertically unlike the icon depicts.
Hey Bihu – Powerlink signals are single ended, not able to send balanced signals that an XLR connector would usually carry. Of course you can use XLR if you want you will just have to make do with the positive and ground wired only.
Each Powerlink jack/cable/plug will carry both left and right channels.
For more details on the connector, see the Powerlink diagram here.
For a quick solution, visit Steve’s site linked at the bottom of this forum.
But less is more …. so is B&O thinking and had create his own horizontally tablestand. This is very flexible. Do you know this stand?
Yes, I knew this stand was out there. I don’t really like the look of the bent wire and didn’t feel like hunting it down.
I enjoy designing things and I’m addicted to 3D printing so it was easy for me to do. Its good to flex the creative muscles every now and then.
Edit: Just checked the analytics and a whopping 7 people have downloaded it so far. Modest take rate but I’m glad a few people out there liked it enough to download 🙂
LG77 G2 and TheatreBrilliant looking room, Jack!
Ha! That’s a great idea! After writing my last post I realized I could build them as a tower of amps on a single plinth so that they form a “stereo” amplifier haha!
The system I am building is turning out to be very unique thanks to all these odd ingredients (which is something I’m beginning to appreciate!). It seems to be made of chess pieces! Almost nothing matches except for the Penta content.
I think for now I am going to stick with the BeoLab 200 plan once I sort out at least two, fully functional and refreshed amps.
Small update for you folks. Yesterday I drove 250 miles round trip to pick up these bad boys:
This is a pair of MK2 BeoLab Penta amplifiers and I managed to also find them on FB Marketplace.
One of them is working fine but the other is blowing fuses apparently. In a little while I will go through and recap these just as I did the original pair. I’ll swap one of these (or whichever one is working) into the bad speaker and repair the original amp fully at a later date.
The cool thing about this project is once both of the naughty amplifiers are back in shape I will have a pair of spare amps to put to work! I think I will be 3D printing some accessory parts to make them look like BeoLab 200s.
I have been dreaming of this for 10 years…
Congrats, Leo! Please add your listening impressions of the BeoLabs after some listening time! The all-black BV7 looks awesome, too.
I’d be very interested to hear how/if you recommend the BL7-4. I’m running a BeoLab 10 as my center channel and I never thought I would need more from a center channel until I put it in-between a pair of Beolab 5s. The BeoLab 10 is of seriously outgunned on SPL and low end (not the BL10’s fault) but the timbre of the 10 and 5 are extremely different. I wish I could fit a third 5 underneath my BV. The Beolab 10 seems to be very midrange-forward compared to the 5s (much sharper in the HF). I wonder if people reading this have the same opinion? MY Beolab 10 sounds so “warm” in the middle by comparison that I wonder if the tweeter is operating correctly.
Today I finally replaced some unused coax wires with Cat7 cables and re-added my BeoMaster 6500 / BeoGram CD 7000 combo to my set-up. They are in the attic (study) and connected through a 1611 to go from MCL to ML, and a BLC to go from ML to NL.
I made a little overview of the whole network :-). 
Next trial will be to connect the BL4000s directly to the Core. Until now I kept them in the larger ML network to avoid sync issues, but if they sound better without the Active and BLC in the chain, I will see to fix any delay issues and get an IR eye connected to the Core for Beo4 control in the kitchen. Regards, JohanThis is a true “system”! Nice work integrating everything and that “little overview” is actually an epic graphic!
That BV10 looks great by the way. I always miss mine.
Hey Lee –
First of all, good to see you are still poking around! I am very appreciative for your efforts in running BeoWorld. This platform helped me discover and develop a subject I have become quite passionate about – it has literally changed my life. For that I will always be grateful. As well there’s no doubt that Keith is an absolute legend and powerhouse making it all work.
The diehard enthusiasts will always be here, you can count on us. In my experience, the BeoCommunity used to be very centralized around BeoWorld in its 2007-2012 iteration (maybe a few more years after that). The seemingly endless number of FB groups/pages seem to have been the main undoing of the traffic we used to see at BW. BeoWorld will always be the place I go to share, though.
I think a price increase is overdue for Gold members but I can see how that might drive membership down even further. Chicken and egg indeed.
I also see the identity of the Prize Draw (and sir BottsWorth himself) are part of the BeoWorld brand, to lose it would be like losing part of BeoWorld. How many forums do you know do this?? Truly unique. However, I understand that we can’t live in fantasy land anymore. I agree with MM on maybe working the sponsorship angle more or attempting to find a way to subsidize somehow so you aren’t footing the bill yourself.
Evan
San Francisco store is open for business. Nice store, directly connected to a BoConepts furniture store as well. Several BS Theatre systems on display, as well as Shape, Horizon, Balance, headphones, etc…
This is great news! I thought they were closed for good.
Cheers, Kirin! Thank you very much.
For anyone interested in printing their own, I have made the design available HERE.
When I have the time I’ll make another design available where it is more upright with the speakers that are more on-axis.
Thanks, Johan! I’m very pleased that it worked on the first iteration. It does indeed have a groove that fits between two of the heatsink fins. It gives a bit of flexibility to the angle. The only thing I might change is its overall angle, I think its too far laid on its back as the on-axis high frequency is reduced quite a bit compared to it standing up vertically as I had before. At any rate, it fits and works great. Check it out:
Last night was a late one with sparse meetings which means doing conference calls from the workbench in the garage. In between some of them I designed a new table stand last night to hold a BeoLab 4000 horizontally. Should be done printing when I get home.
If it fits / works well I’ll make the design available if anyone is interested.
Last night was when everything came back together. I hauled them up stairs and plugged them in to the AVP. Just in time to watch an episode of our current series before falling asleep.
That glorious moment I have been working toward had finally come – time to flip the switch(es)!
The left BeoLab played sweet, sweet music but the BeoLab on the right was playing very loud 60Hz. Something is very horribly wrong. Sadly they will probably just sit for a while because I have been going hard on this project lately and as I pointed out earlier, those amps don’t make life easy. So unless I find another amp to run them on temporarily, it will likely be a while before this gets wrapped up. Wales is calling.
Luckily they are nice to look at. Thanks for reading and following along! If you happen to have a spare, functional amplifier I’d love to hear from you. Additionally if you have an extra Penta tweeter (SEAS 25 TNF H386) I’d love to take it off your hands.
This isn’t over, but over for now.
