Lazy Singing Bush

Yea, the thing with really full size speakers is the absolutely superiour full range dynamic scale they can reproduce.

The standmount speaker or small woofer area speaker can surely sound very old lady cute, clean and clear. But it simply can never ever reproduce the full dynamics and the full size sound imaging: the massive, effortless, natural full range sound - Like the really BIG speaker can.

Its simply pure and solidly proven physics. 🙂

Its a doll house sized bass guitar and singer in the sound image compaired with a full sized bass guitar and singer in the sound image.

So, dont hold back. Build the speakers big. Really big. Really, really full bass range! 🎺🙂🎸
 
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Now one 2SK182ES Lazy Singing Bush channel is up and playing chill out music on the mini test KEF speaker at the build bench! 🙂

No THD measurements yet. But here is the thing. With R1 at 8k2 the bias topped out at 2,4A. So i changed the R1 to 3k3, and that fixed the bias range. Now i have adjustment range P1 10k from 2,1A to 3,2A.

IMG_6623.png


But how do i modify the range for the output node voltage? With rail voltage at -84,5V i now have C* node voltage adjustment range P1 5k from -27,1V to -32,5V.

Around -42V would, if i understand this correctly, with the -84,5V rail voltage, be a good starting point?


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