Few Beolab Penta -questions

31 replies

Hello.

I have just bought a pair of Beolab Penta speakers! I paid... well, a lot but less than 800 EUR.  This is the MK1 (?) version, yellow screen showing source and volume.

They are quite nice, especially after cleaning all the fingerprints off!  Only a few very small dents, most on the back. 

My main questions at the moment are:

1) Has the original cloth been black or grey? The cloths are looking a bit dirty, almost yellowed... Some holes too and I think I will replace them.

2) When used with my Beocenter 9000 (thrue the 4-pin DIN cables); what sensitivity setting of the three I "should" use?

3) There seems to be a slight buzz - with no signal applied. I recon there is some re-capping to be done? Also I'd like to recap the crossovers someday. The DIN cables are very long and of unknown quality and I will shorten them and check the plugs and their solderings.

4) The midrange speakers are of the foam-edge type. They are all intact (except one that has now a small crack when I pressed it when checking). The speakers have been already played loud and as the foams are still in one piece I will let them be for now. How much a good-quality replacement rings cost and can you recommend a specific place to buy them? I have never done refoaming but I am eager to try!

I have had them for only some hours and futher listening will show if there are other problems. Anyway I already like them, they are huge, but they look great. I was sorry to give the S75's in exchange but I simply haven't got enough space to keep them all. 

Well done - Pentas are great!

1) The cloth is grey, never black

2 & 3) Consult the manual onsite and also consult our resident 'tech guys' on the forum for that!

4) for the midrange drivers i would just replace them with the B&O new parts, but Dillen and Medogsfat are very experienced in refoaming - so i would possibly ask their advice! 🙂

Enjoy!

Lee

🤒

The orange display makes me think that they will be Mark 2 Pentas. Do they have Powerlink sockets as well? If using speaker link and a 9000, set the volume to the middle setting - 40-80W .

My B&O Icons:

BeoCenter-9500.png BeoCenter-9500.png
Beoremote-Beo4.png Beoremote-Beo4.png
Beovox.png Beovox.png
Beovision-11.png Beovision-11.png
Beotime.png Beotime.png
Beosound-Stage.png Beosound-Stage.png
Beosound-Moment.png Beosound-Moment.png
Beosound-5.png Beosound-5.png
Beosound-2.png Beosound-2.png
Beoremote-One.png Beoremote-One.png
Beoplay-Portal.png Beoplay-Portal.png
Beoplay-Earset.png Beoplay-Earset.png
Beomaster.png Beomaster.png
Beolit.png Beolit.png
Beogram-400x.png Beogram-400x.png
Beocenter-2.png Beocenter-2.png

That's interesting, I was reading the "From Spark to Icon" yesterday and there the clotch looks clearly black!

I remember seeing the different displays in the "Collecting B&O" book and I think that the difference was that the MK2 had the track number display added, the MK1 having only the source and volume. They have line in, speaker link (the 4-pin DIN) and speaker level clip- connectors on the bottom, I don't think there was Powerlink, nor have I ever seen one!

I will be interest to hear experts' comments on whenever I should replace the elements or just refoam them. 🤔

 

Sound like Mk1s then, though all the ones I have seen had green LED displays. I would replace the mid range units - they are not that expensive though clearly this is made up for by the number of them. You then know you have brand new units with no faults.

My B&O Icons:

BeoCenter-9500.png BeoCenter-9500.png
Beoremote-Beo4.png Beoremote-Beo4.png
Beovox.png Beovox.png
Beovision-11.png Beovision-11.png
Beotime.png Beotime.png
Beosound-Stage.png Beosound-Stage.png
Beosound-Moment.png Beosound-Moment.png
Beosound-5.png Beosound-5.png
Beosound-2.png Beosound-2.png
Beoremote-One.png Beoremote-One.png
Beoplay-Portal.png Beoplay-Portal.png
Beoplay-Earset.png Beoplay-Earset.png
Beomaster.png Beomaster.png
Beolit.png Beolit.png
Beogram-400x.png Beogram-400x.png
Beocenter-2.png Beocenter-2.png

The B&O collecting book tells that the MK1 and 2 have yellow (a bit greenish perhaps) screen and the MK3 has green dot-matrix screen.

There is anyway some maintenance to be done; the cloths, midrange units, electrolytic capacitors in the crossover and power supply.... Anyway I have a deal with the seller and we can lower the price if there are any faults that I have to get fixed. 

Anyhow I'd prefer to refoam the midrange units, if that is considerably cheaper (and if I can do that myself with good results) than buying replacement units. As there are eight of them in total!

 

Mark 2 are distinctly orange - much the same as Beolab 3000s. Mark 3s are completely different and are green dot matrix as you say. Best of luck with the refoaming.

My B&O Icons:

BeoCenter-9500.png BeoCenter-9500.png
Beoremote-Beo4.png Beoremote-Beo4.png
Beovox.png Beovox.png
Beovision-11.png Beovision-11.png
Beotime.png Beotime.png
Beosound-Stage.png Beosound-Stage.png
Beosound-Moment.png Beosound-Moment.png
Beosound-5.png Beosound-5.png
Beosound-2.png Beosound-2.png
Beoremote-One.png Beoremote-One.png
Beoplay-Portal.png Beoplay-Portal.png
Beoplay-Earset.png Beoplay-Earset.png
Beomaster.png Beomaster.png
Beolit.png Beolit.png
Beogram-400x.png Beogram-400x.png
Beocenter-2.png Beocenter-2.png

Hate to disagree with Peter but I have never seen MK1 with green display. My examples have all had Amber.

The only green ones are the MK3

I would also replace the midranges. They cost less than £20 each and will save all that crap and glue and stuff!!

Attached is a photo of my Pentas screen. 

Are the replacement midranges still available from B&O? Or from Dillen or some other source?

 

And here is the broken midrange speaker... 

 

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