Beolab penta mk3

62 replies
I have a beolab penta mk 3 from year 2000.That means the last produced model.
They sound wonderful.

By moving between to cities in Norway i had to deconnect the loudspeaker from the receiver.
In that case i forgot to sign the plus and the minus wire.

By reconnecting the base(receiver) to the penta loudspeaker i have a problem.
Both wires are grey.
I can no long see the different between the plus and minus wire.

Can somebody out there help me out of this problem?



Pag
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Thank you for yor answer.

The speakers are still in the boxes.

I am planning to reconnect them next week.

You are writing "that sholuld be the plus".Are you 100% sure about that!.

And is there different wires among the pentas?

i am not doubting you,but i just want to be guit sure .

What will happen if i connect the wires wrong?

 

Pag

 

I'm 100% sure that the marked wire is the plus. But I mentioned "should be" because I was hoping some experts here could confirm my finding. Let's wait for someone to react like member "Beobuddy" who's an expert in recapping/repairing Penta labs or better send him an PM.

I always connect the marked wire as +ive.

Thanks Graham, now I'm 200% sure I did it the right way!

Thanks Leslie for the command.

Indeed as mentioned, the wire with the stripe is the positive lead.

Connecting wrong will not damage your speaker and even not noticable if you're doing it on both speakers.

As long as you are connecting the speakers the same way, it will be right. Only if the penta(s) are the only speaker(s) in the room. If they are a part of a surroundystem, the leads have to be connected the right way. Which of course is preferrable.

Location: Utrecht

Quite a challenge to achieve "Less is More" while having the Beovirus.

Thanks to both Leslie and Beobuddy.

Thanks another time for the great Help from both of you.

Another problem.

I have also another beoalb penta mk3 from1996

1)How can  i remove the cover over the midrange and woofers?

2)One midrange have foam rot.

Where can i buy new midranges?

Pag

 

 

 

 

 

Andreasi995 wrote:

Thanks to both Leslie and Beobuddy.

Thanks another time for the great Help from both of you.

Another problem.

I have also another beoalb penta mk3 from1996

1)How can  i remove the cover over the midrange and woofers?

2)One midrange have foam rot.

Where can i buy new midranges?

Pag

 

 

 

 

 

And Graham not to forget!

How to remove the cover? Grab one side with your fingers into the cloth and pull with a little force.

New midrange? Try to refoam, cost you less then a few euro's each and do all 8 of them.

 

 

Of course,thanks to Graham too for his very good help.

Refoam?

Can you tell me how to do that.?

I have never tried to repair a midrange in the beolab penta.

How much work is it?

Pag

 

 

Btw, I got myself another pair of Penta's 3 but unfortanetely the mirror base is badly scratched with black spots and the cloths needs to be replaced. Just did the 2 large grills and replaced the original cloths (dirty and with holes) with new black speakercloth. All midrange driver needs a refoam job so enough work to do on these giants!

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