I bought the Masterpiece and am used to doing upgrades
All poly caps were Panasonic poly caps -not bad, but I replaced with Audyn Caps
These German caps are a true bargain smooth and detailed ,resistors were 1% I left alone,tube sockets Woo audio Copper gold thd best out there IMO. all Neotech-7-9Copper wire. Runs at a high 100ma for the 300b.I used a Furutech IEC input socket much better hold on PC and used a 1A 32mm slow hifi tuning fuse.I lowered to 70ma easier on the 300B.especially if using Sophia tubes ,will last much longer. I also squeezed a Bent audio Alps remote setup.
Eh are much more rugged but don't sound as good 12au7 vintage Tungsol
Smoke glass.herbies tender feet. It sounds incredibly good and dead quiet.
I will put this against any commercial $5k preamp . The lushNess of the 300B
Not like in a amplifier where it can be soft nice tight Bass and we'll defined highs
With all my extras and put silicone around all the corners and seams gor anti vibration took about 16 hours in total.
All poly caps were Panasonic poly caps -not bad, but I replaced with Audyn Caps
These German caps are a true bargain smooth and detailed ,resistors were 1% I left alone,tube sockets Woo audio Copper gold thd best out there IMO. all Neotech-7-9Copper wire. Runs at a high 100ma for the 300b.I used a Furutech IEC input socket much better hold on PC and used a 1A 32mm slow hifi tuning fuse.I lowered to 70ma easier on the 300B.especially if using Sophia tubes ,will last much longer. I also squeezed a Bent audio Alps remote setup.
Eh are much more rugged but don't sound as good 12au7 vintage Tungsol
Smoke glass.herbies tender feet. It sounds incredibly good and dead quiet.
I will put this against any commercial $5k preamp . The lushNess of the 300B
Not like in a amplifier where it can be soft nice tight Bass and we'll defined highs
With all my extras and put silicone around all the corners and seams gor anti vibration took about 16 hours in total.