I have a problem where when I turn the volume up loud, it seems to drop back down very quickly, and it seems like it also taking all the bass out. It then stays at the lower, thinner, level.
I recently bought a Beocenter 9500 to replace my previous Beomaster. I have it connected to a pair of Beovox 5700 and a pair of Redlines. It does this on aux (bluetooth), on phono (beogram), and on onboard CD.
If you play a song loud which gets louder part-way through, the system kills the volume at this point too. It doesn't "recover" afterward, not till it's been turned off & on.
Does anyone know is this normal? Am I just expecting too much? My lounge is only about 6 x 7m, and I only want it loud once in a while, but it seems disappointing for something that looks so good, and I'm sure my old Beomaster didn't do this. Is this just a more advanced self-protection system?
If this is the genuine limit of the 9500 amps then I am thinking I should get some Beolabs to get the volume I want. I will miss the 5700s though, I've had them for over 20 years and they look and sound great.
Apologies for joining the forum and then asking for help straight away!
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Beocenter 9500 - volume dropping at high levels
13 replies
Hi and welcome to Beoworld!
I have definitely experienced a similar automatic volume reduction when using my BC9500 to drive a pair of passive Audiorama 8000 speakers - I assumed that it was due to some sort of overload protection although I can't find this documented anywhere. (I will have a search of the archived forums to see if I can find anything.) I didn't have to switch my BC9500 off/on to reset it - turning the volume down resolved the problem.
Instead of getting BeoLabs, one quick and easy way to reduce the load would be to get hold of a secondhand B&O Login to view image
EDIT2: There can also be problems with the Mute Relay (poor contacts giving poor/low sound), but this would only affect the sound from the Speaker 1 sockets (the relay is 3 RL 1 in the diagram above).
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Thanks Guy, for your very helpful reply. I had missed that in the manual, but think I was searching in the schematic rather than the block diagram for clues. That would make sense then.
I had thought about the Passive (amp) units, but they are are only 3oW so probably not up to what I sometimes want.
The speakers are all in the same room. I have the big 5700s up front on channel 1 and the smaller Redlines (45 I think) wall mounted at the rear on channel 2. I can test if it's related to the mute relay by only using the 5700s and putting them on channel 2, then see if the problem still happens.
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