Speedy454's Recent Activity

  1. Speedy454 replied to the thread Keeping enamel from dent ?.

    Start by sanding the aluminum box with #400 sandpaper to give the paint something to hold on to. Then clean it thoroughly. 90% alcohol,...

    Nov 29, 2020 at 1:52 AM
  2. Speedy454 liked NTC's post in the thread Blowing speakers... but why?.

    Have you put a voltmeter set to DC on the output? That will settle this quickly.

    Nov 23, 2020
  3. Speedy454 liked King Fan's post in the thread Blowing speakers... but why?.

    Have you tried lifting the NFB? Leaving aside DC, whether likely or not, I'm wondering about gross (and sometimes inaudible) oscillation...

    Nov 23, 2020
  4. Speedy454 liked trobbins's post in the thread Blowing speakers... but why?.

    So it is a new build that will need faultfinding. It could be as simple as swapped feedback polarity, or it could be some unanticipated...

    Nov 23, 2020