OOOOH! Being a HUGE fan of the Cannabis Rex, I would LOVE to hear this, I use 2 C-rex's in a 2x12 cab, I would like to try this with one of the new speakers, I'd think it would be fantastic.
They probably won't reach the UK for some time though.
I used the LM1458 for a long time, did not think it could be improved on, then I read your post, bought a TL072ACN, THAT is now MY sound!! Great chip, nice 'full' sound, enhances the bass but does not (seem) to affect the treble. Thanks for the tip.
After listening to all the demo's (all great) I have cane to the conclusion that the HI-Watts sound like my Carlsbro CS60TC, or maybe the other way round... so save yourself a LOAD of cash and look for one of the old CS60TC Carlsbro's.
Also, after watching the demo's, I really want a 4x12, god...
They are fantastic amps. The above site will give you all the details you need, as will the carlsbro forum. Carlsbro tended to design amps with mullards in mind and as long as you use your favourite ECC83/12Ax7 you will have no problems, they are a wee bit sensitive to biasing, I have found that...