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Have not visited Les W yet but will do before the end of January.
I thought Arkless was no spring chicken either ?
I noticed one of my 5" up firing mids was having an issue. I have suspected such for a while now. Changed amps over and speaker cables and it stayed on the right hand side only. A intermittent buzzing noise and less mid frequency from the affected driver - I think it caused the sound stage to shift slightly to the other side (left) unless the recordings are like that any way ?
Little cuboid semi Omni now has back off and 5" driver out. Funny thing is I used silicone sealant to stick it in and I am finding out now that it is a bit too sticky I put clamps on so top and bottom panels could not move away from each other. Inserted small barrel car jack into the back of the speaker and jacked the bastard out Did not take much force to get it out. It will be going back in with decorators caulk as that is not as adhesive as silicone.
Put blue tack under the magnet and pointed the 5" upwards on top of the big bastard bass cube. Gave the thing a good blow out with my leaf blower. Then i noticed that the wires from the voice coil were against the back of the cone after they emerge from the black glue towards the centre of the cone. I have bent them away from the back of the cone and now playing music with driver still blu tacked to the BBBC.
It seems to have solved the problem as maybe the wires were vibrating on the back of the cone ?
Going to put Portishead Dummy on now as that CD really did show up the problem with lots of deep bass..........Playing it now and the problem seems to have gone away Just need to put the driver back in and check that things are still ok.
Cheers Doc, gives me peace of mind that I will have solved it. Off into the shed now to put the speaker back together (and have a cup of tea ).
Back later with the results.........................