G’day to yers,
I’ve just been given an oldish Bang & Olufsen Beocenter 4600 sound system..
It’s a 3 in 1 job with Turntable,Radio,Tape player and Speakers (sadly,the Bass drivers are perished around the rim)
After a bit of fiddling,I got the turntable to work and play in Stereo but up at about 7 + volume level,I’m getting a feed-back (like when an Electric Guitar faces an amp and the feedback grows and grows until there’s chaos).
Would anyone have any ideas as to where the problem might lie ??
I’d forgotten how ‘primitive’ these things are ..all sorts of crackles,pops,getting stuck at certain points etc… good to hear some of my old records though.
Nothing I can say about your system, but I just purchased a 3.5 mm to RCA Y-cable and hooked up my tape deck to my computer mic. in spot and have been converting the audio of some of my out of print tapes to MP3.
I know what you mean, nice to listen to some of my older tapes again.
I’d forgotten how ‘primitive’ these things are ..all sorts of crackles,pops,getting stuck at certain points etc… good to hear some of my old records though.
Just yours lol. Here’s mine:
Most record players aren’t ‘primitive’: like a musical instrument, the tolerances to which it is produced is highly refined and very precise.
The coupling between the cartridge and vinyl is very delicate. It doesn’t take much energy to corrupt it. Vibration feedback could creep in either via the surface the turntable is sitting on or the audio pressure stream impinging on the tone arm.
Isolation may cure your feedback.
Base isolation: set the turntable on a something heavy (NOT the speakers!). The heaviness could provide some inertial isolation. Further, you could try a thin layer of something soft (like a folded towel) between the heavy object and the turntable (dampening isolation).
Tone-arm isolation: some type of dust-cover over the tone-arm. Many turntables used to come with nice-looking clear plastic dust covers. If yours doesn’t have one, any box will do. Anything to keep the sound-stream from impinging on the tone arm and causing it to vibrate.
I’ll echo the above suggestion that it’s from the speakers. I don’t generally use my turntable at very loud volumes and it’s pretty far separated from the speakers so I haven’t had this issue. But since your unit has everything built in there’s a direct solid link between the turntable and the speakers. This means that as the speakers vibrate, the turntable vibrates and since it just amplifies whatever vibration comes through the needle, you get your feedback. Trill gives good advice but since you’re system is all interconnected you might just have to either stay at lower volumes or get an external amp and speakers.
Thanks people,
You could be onto something there… re the Speakers.
I have it sitting on the bench with the speakers on either side of the unit,about 6 ‘’ away..
One other thing I’m going to look at is the FM radio switch that seems to staying in the ‘on’ position..when I try to turn it off ,the ‘phono’ section goes off as well… I need to get to the innards to check this out…it’s been good fun so far,I’ll keep you posted
Fixed it … I didn’t have to work too hard though…just moved the speakers off the bench and put 'em about 12 ’ apart .. whooda thought it !
Thanks everyone
..all sorts of crackles,pops,getting stuck at certain points etc… good to hear some of my old records though.
… I didn’t have to work too hard though…just moved the speakers off the bench and put 'em about 12 ’ apart 
.. whooda thought it !