Also what SMALL type of capacitor would you suggest (1 - 2.2 uF) to go after the capacitor?
Wima's MKP is too big. Black Gate N/Nx looks interesting.
What is better and/or smaller?
I like 2.2 to 10uf for the cap alot of people are going to shoot me but I like Tantalum caps I have some really nice 2.2 20 volt caps I can send you if you want they are made in the USA and are very old. I like the way they sound the are about 2.5mm by 6mm long and are axial type.
I think there is something to that, Chris.
I've disassembled several Audio Technica power modules (AT8531, AT8533, etc) and found they use a single transistor to drive an isolation transformer, and they use a tantalum cap to couple it! They could have used a 'lytic, but for some reason chose a tantalum instead. I've asked several people, but noone can provide an explanation for this.
Oh yeah, I should also comment on the value of testing circuits out. Earliier I talked about how the Edirol UA5 has significant harmonic distortion at just under 0dB. I compared that to an Emagic EMI 6|2m (six inputs, two output 24 bit usb device) and that one had very little harmonic distortion. But this is just an ADC, no preamp or gain control on the inputs. Then I stuck my self-made preamp in front, ran a 20 second "sweep" (20Hz - 20kHz, -24dB down) from my NJB3. I noticed a fair bit of drop off (maybe 6dB) at 20kHz. I also noticed a strange peak at around 88Hz. It turns out this is not my preamp, but the NJB3 output. Anyway, it pays to check things out, and my hat's off to you Chris for doing this before you sell your gear!
Richard