AC vs DC power supply parameter. Try it :)

My favourite reason for switching the power supply parameter to DC is to get rid of ghost notes found on certain models. Yes, the ghosting is authentic, but it's great to be able to eliminate it when the need arises!
 
Wild Just saw that and wondered about it..
50 watt Marshalls were notorious for Ghost notes
and some 100s I was told if real bad the caps were going..
wont ever have to worry about that again..
 
A lot of the character of these amps are the sloppy power supplies and ghost notes. Take that away and they sound flat and dimensionless.

For example, take the Plexi 100W models. Ghost notes like crazy. Turn up the gain a bit and play an E on the G string. You'll hear the ghost note. Now increase B+ Time Constant (or decrease Supply Sag). The ghost note will go away but so will some of the mojo.
 
Tex Axe said:
Wild Just saw that and wondered about it..
50 watt Marshalls were notorious for Ghost notes
and some 100s I was told if real bad the caps were going..
wont ever have to worry about that again..
Click to expand...

100 watters are usually worse because they have lighter filtering (50 uF vs. 100 uF) and draw more dynamic current.
 
I have 2 Plexis and they have quite a bit of ghost notes. My BE100 and PT100 doesn't have much of it because they use heavy filtering. I wonder if the other reason might be because the Plexi's have to be on 8 to 10(non master volume) to get some gain out of them?
 
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