Thanks Mickey... I haven't fired it up for a couple of years so let me check it over. I do know one channel (of the eight) was faulty - rushing wind noise. Previous owner built a separate power supply, so it had very quiet operation. Let me check it all over tomorrow but assuming it's just that one channel gone dodgy then I'll be looking for around £3oo. You have a think about that and think up any questions and I'll come back here tomorrow. Maybe I'll make an amateur video.
I'm new here and don't want to break any forum buy/sell rules, so if you can point me to where anything like that is listed, that would be helpful! cheers.