I am new and need help, please. I have had a Beogram 4500 connected to a Beocenter 9300 with Beovox RL 6000 speakers for a year or so - all working well. until recently. There is now a problem when using the Beogram only. There is a distortion of the sound in one speaker (it is not the speakers, as when I swap the speaker connections, there is always the distortion in one speaker). I have cleaned and checked all the connections and it remains, only when using the Beogram. The MMC4 cartridge/stylus came with the Beogram - not brand new, but it still looks good under the magnifying glass, and I doubt that it is the source, as the sound in one speaker is clear. It is not the Beocenter either, as I have had that and the speakers for many years and there is no problem with the sound when using the radio. Any ideas, please?