...other than thin wallets. I recently built an outboard linear power supply (based on the $65 semi-open-frame Acme linear power supply from Surplus Sales of Nebraska) for someone [no, I'm NOT taking orders anymore, this one's from AUGUST. yes I'm that busy with school...], and in the process noticed that the corresponding META42's highs seemed quite rolled off - it sounded downright DARK!
Quite strange; until I swapped out the filtered IEC I'd gotten surplus for a regular unfiltered one from Mouser. The highs opened right up! Just by removing a few capacitors and an inductor from the AC side of what (seems to me) is a very good, well isolated linear power supply {though my house's power is quite clean, apparently} - and I've got 2430uF (2200uF, 220uF, 10uF) of filter capacitance on the AMP side! Logically the IEC shouldn't do ANYTHING at all, but my ears tell me otherwise... Go figure.
Time to start saving up for a Nite
Quite strange; until I swapped out the filtered IEC I'd gotten surplus for a regular unfiltered one from Mouser. The highs opened right up! Just by removing a few capacitors and an inductor from the AC side of what (seems to me) is a very good, well isolated linear power supply {though my house's power is quite clean, apparently} - and I've got 2430uF (2200uF, 220uF, 10uF) of filter capacitance on the AMP side! Logically the IEC shouldn't do ANYTHING at all, but my ears tell me otherwise... Go figure.
Time to start saving up for a Nite










