Frank, you should get Head-direct to make your amp. Call it the FC-5 More people need to hear the glory!
post #31 of 1917
3/25/10 at 8:31pm
Eh, maybe. Only in high resolution recordings though, because regular old Redbook is limited to around 20khz by the 44.1khz sampling rate (I think, correct me if I'm wrong people who know better). This is also provided stuff was recorded at over 20khz, which usually it's not (unless it's quiet distortion which probably won't tax the driver much). Open up a spectrum in Foobar or similar and notice that there's very little activity even near 20khz unless it's some highly digitized pop stuff.
Ah, I was not aware high frequencies were limited by a recordings sample rate.
|Basically it's a simple two stage, zero feedback, SET using a triode connected Western Electric 418a to drive a Russian GM70 via an interstage transformer. Output is via an Electra-Print 5k:32 transformer. The GM70 is run at a relatively low 550V@60ma. Sort of my interpretation of the Japanese "Sakuma style". Power supply is a dual mercury rectified, LCLC filtered "brute force". Power out right now is about 6 watts. Probably capable of three times this if the B+ is cranked up.|