When turned on: srm450 has no sound, but all leds (power and signal) is normal. If I turn the volume up (near maximum) , the srm450 sound is activatet again , and peforms normally. I then turn volume down to normal again. If played at low volumes , the srm450 might get silent again
Audio Players & Recorders - Mackie - SRM-450 System
Answers & Comments
1 TAKE THE MAINS PLUG OUT
2 Unscrew the fixing screws on the back. (just the outside ones)
3 Take the back off and turn the amplifier circuit board to face you.
4 About 2" from the left and about 4" from the bottom you will see a sort of tab. pull it off gently and widen the 2 prongs slightly.
5 Put the jumper tab back on and re fit the amp.
Cheers mate your a god!!
Already had one replaced with the same thing wrong.can do my gig now!!!!!