Posted by manualblock [ 24.191.167.32 ] on August 08, 2004 at 09:45:08:
In Reply to: Re: ASL Tulip amp mods posted by spkrman57 on August 08, 2004 at 08:16:01:
Well Ron I personally have not heard the amp and it's hard to make recommendations w/o hearing. The Audio club here had a guy who liked it but he only heard it stock. Remmember that the Tulip is input transformer coupled. I guess to increase gain since they put out 3.5 watts from just a driver stage and the output stage. From the little that I know input trans must have a very high step-up ratio to load a single tube; however that requires high turns ratio which could compromise high end response.
The mods I have heard of include:
VH Audio V-cat Teflon coupling Caps
Riken Carbon Film grid-stopper resistors
Sonicap Power Supply filter cap by-passes
IXYS Ultra-fast soft recovery diodes in the power supply.
This should help I hope; the unit is supposed to sound real sweet with these mods.J.R.