Chris See links below...audio amps used on LF, MF. These Hafler amps were selected because they are rated to 300 kHz right out of the box. Probably won't find similar performance in very many amps. I
I use home build on both 137 and 500 On 137 4 fets in push pull class D and on 500 1 fet in class E. Use a LPF for each. I never had a problem with crud !!!! Reliability is good especially class E wh
Chris try single ended Class-E very simple, ok they need a modicum of tuning but have been used successfully by Mike GW4HXO and Finbar EI0CF and others up to about 500W. I have some notes on experime