Hello Quaker. You have a problem with the D-class drive board. There is an abnormal frequency oscillation present on the LF amplifier output.

Wharfedale Titan 12 ACTIVE User Manual • Block diag ram 13 • Wharfedale Acoustics. 2-WAY PROFESSIONAL PASSIVE LOUDSPEAKER TITAN 12 User’s. Attempt to service this. That’s the Wharfedale Pro advantage! TITAN 12_Manual RevC.indd 7 8/31.

Mineral Oil Iso Vg 10. That is the reason why R79 burns. I can only assume, that you have checked the power supply voltages, if so, the next thing is to carefully check the soldering on the D-class board. Cricket Samrat Magazine Pdf. And finally, if that doesn't help, replace the IR 2011 an the TC7WH08.