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About cpizey

  1. Thanks - I'm contacting the UK dealers now.
  2. Tried running my old Amcron Macro-tech 2401 for mid/tops, driving three 8 ohm speakers on each channel - so, 2.7 ohms a side. After a while each channel would cut out then cut back in periodically. The amp got pretty hot. It was an outdoor gig, may be 18 degrees C (65 degrees F) so not exactly sweltering. And the amp is well ventilated - in a case with two fans and plenty of space around it. So is it faulty? Or is that to be expected when you load at less than 4 ohms? Thanks.
  3. Thanks - will try that. Also heard this from Kevin B Gring, Application Support Engineer, Crown International "You can try placing a .01uf 250v capacitor across the power switch terminals as a filter. This was done in manufacturing on some models as standard."
  4. Hopefully these are the links you need for the schematics? http://www.crownaudio.com/pdf/legacy/ma240...25-4%20revf.pdf http://www.crownaudio.com/pdf/legacy/ma2400.pdf http://www.crownaudio.com/pdf/legacy/ma2400main_126063.pdf And for the service manual: http://www.crownaudio.com/pdf/legacy/ma2400sm.pdf Cheers Conrad
  5. Just bought an old and dusty Amcron Macro-tech 2401 from Ebay, and it seems fine except for a nasty thump every time I switch it off. Doesn't happen on powering it up. An electrician friend of mine has given it a good clean, and measured and adjusted the bias (which wasn't far out) but this hasn't solved the problem. Any advice greatly welcomed. Thanks. Conrad