Beolab Pentas MK1 - Help Needed

24 replies

Hi all,

It's been quite a long time so I hope I'm back for good although job keeps me occupied for many many hours per day.

Yesterday night, I tried to install a pair of Beolab Pentas MK1 I have, but never used before. There are a couple of issues that I'm not sure on how to handle:

1. One of the speakers, when plugged it says in orange on the screen "No Recording". Actually the word recording is blinking. The on/off indicator is very pale red or Green.

2. I tried to connect them with a Beosound 9000, through the speaker link cables, but although the one turns on, the sound does not come out. At the beginning I used a newer PL cable but nothing worked and then an older one such as the one used with MCL2P (Special fully shield I think).

3. The Speaker links I have, also have the line out connection. Should these be also used or the speakerlink connectors should be used only?

Please help as I would love to enjoy these lovely pair........

Best regards

Spiros

I would try a pair of plain 2 pin din speaker wires first and see if the speakers work. Forget the displays till then. Set the switches correctly on the front - I take it you have the manual? If the speakers work, the displays should be reasonably simple - I hope!!

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The speakerlinkcable from the BS9000 splits the line level audio from the datasignals.

So therefore, you have to connect the rca connectors to the penta for the audio signal, where the speakerlink has to be connected for sending the right datasignals for the displays. The switch should in this case be set in the "line" option.

Location: Utrecht

Quite a challenge to achieve "Less is More" while having the Beovirus.
Many thanks both for the replies. On the manual it mentions that the set "line" is just for the Beomaster 5500. I assume this is wrong?

Also the one speaker does display the "No recording". Could that be just from the lack of signal?
Also since it is for the Beosound 9000, should the sensitivity be in max, medium or minimum?

The manual was written years before BS9000 even existed, so it can't describe this setup. Since the Beosound doesn't have any power amplifiers and thus no speaker level outputs, your only option with Mk.I Pentas is feeding audio through the RCA connectors and switching the speakers to LINE mode. The sensitivity switch does nothing then.

As Beobuddy says, in this context the DINs are only used to feed data to the displays. Forget about them for now, and test that you get sound from both speakers.

Many thanks for the tip. There is no line on the pentas but only link. Is this the one? Otherwise it does have off and auto which in any case do not give anything.....

I have tried almost everything and now there is a buzzing noise from the penta which makes me wonder if even the powerlink cable is right.....

I use the one that I have for the MCL2P. Would that work? What do you think about it?

Spiros wrote:
There is no line on the pentas but only link. Is this the one? Otherwise it does have off and auto which in any case do not give anything.....

Oh yes, AUTO should be the correct setting. And I was wrong about the sensitivity switch, it does work even with the line input. I guess medium setting would be fine.

Buzzing does indeed suggest that the speaker works but the input signal isn't correctly fed. Now I'm not sure anymore what kind of cable you have. You should have a Powerlink connector (round 8 pin) at one end, and an RCA plug + a four pin Speakerlink plug at the other, or what...? If you don't have the audio signal coming to the RCA socket on the speaker, it's not going to work.

Cabling is ok as I use the special speakerlink to Powerlink converters. But I'm not sure about the Powerlink cable.

Still of course what is really troubling/puzzling me is the "no recording" on the one speaker!!! Any ideas what could be the issue?

I am not that familiar with the BS9000 but would you have any volume control at all this way ?

Martin

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