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.
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