Post by DarKnight on Jan 18, 2009 16:43:41 GMT -5
My thoughts have been wondering in the tube-land for few months and I've been thinking about building something in near future when I've learned enough about amplification. So I've been thinking that splitting preamp output to two separate power amps with own effect loops (or maybe just one on the other side) and then sending the signal down to two cabs (or as I planned, having one cab with four speakers, mounted in "+-config", consider standard 412 being in "x-config", so dry in the center and a single wet on each side) to allow wet/dry combination with effects. So I could run chorus, reverb etc. on other side and just pure signal from preamp on the other. 
Power amps would each be a single KT66. These separate power amps would then have single master volume if just possible.
Well to the POINT at last. How should the signal be splitted from the preamp? After the split there would be effect loop and power amp on each side. I suggest I should use audio transformer to isolate power amp signals? What kind of transformer this should be and what about impedances? Those should prolly remain unchanged? There are still huge gaps in my knowledge, but learning is fun and don't be afraid to give some advanced info too. Also comments about the design - whether it is good or not - are welcome. This thing just popped in my mind one evening. Poor mans way to go around having two different amps and two cabs...
Dark
Power amps would each be a single KT66. These separate power amps would then have single master volume if just possible.
Well to the POINT at last. How should the signal be splitted from the preamp? After the split there would be effect loop and power amp on each side. I suggest I should use audio transformer to isolate power amp signals? What kind of transformer this should be and what about impedances? Those should prolly remain unchanged? There are still huge gaps in my knowledge, but learning is fun and don't be afraid to give some advanced info too. Also comments about the design - whether it is good or not - are welcome. This thing just popped in my mind one evening. Poor mans way to go around having two different amps and two cabs...
Dark
Atleast it is adviced on some sources that it would be good idea to isolate power amps from preamp. Those power amps would prolly be powered from a single supply, which I guess would make potential problems with hum? Don't really know.