colin wonfor

By using LTC SPICE you can check this odd circuit out. I does work well but the PSU must be very low noise and very well regulated.

Q & A from Hi-fi Answers. http://www.hifianswers.com/2017/01/ewa-their-hb100-mono-power-amps-your-opportunity-to-ask-questions/

Inputs MC 100R 1nF ( can be custom made ) MM 47K 47pF Line 1-3 1V 22K Output Pre 1V min load 100R Output Power 60+W/Ch 8R 100+W/Ch 4R Headphones 1W max 100R Price £1800 inc Vat

A Mini review by Mr. Alan Brown. Since when will an amplifier sound better the louder it plays? Sure, louder can be more exciting, more enjoyable perhaps, but usually one reaches a point where things get a little ‘ragged’. This can manifest as harshness, sibilance, collapse of sound-stage or...

The 4 layer PCB All the cct.

The Brief History of my life with SECA designs The SECA amplifier designs have been in use for a long time from the early days of valves to the present day. With valves it was a simple matter of biasing the triode and having a transformer coupling to the loudspeaker. Even the first transistor...