The level matching should be 0.1dB.
Mate, what am I missing? Why sell the F6
Ever tried to do that with a volume knob? Match different amps to within 0.1db with a volume knob?
I've started to look at it this way:Buy class A stereoamp.Buy Yggdrasil or any other R2R DACThen buy whatever headphone you want.I'm amazed by what a class A amp like First Watt F6 can do, even with LCD-3F. My Mjolnir is literally garbage compared.
I've been thinking of using stereo amps too for high impedance headphones since they need a lot of gain anyway. The First Watt F4 seems damn near ideal for headphone use since it has a gain of zero.Do you have any problem with noise though?
Gumby can throw the ratio out of whack because of it's value and high performance / dollar. Still, if you've got Gumby, you really should be running an amp that will take advantage of it's capabilities.As far as the distant break points, put the figures in Excel and interpolate.