Tube Amps / Music Electronics
For current discussions, please visit Music Electronics Forum. New: view Recent Searches.
New: visit Schematic Hell!
The sunn still shines online!

Listen to great tunes streaming live right now!

ampage archive

Vintage threads from the first ten years

Search for:  Mode:  
previous: Brian why would a SE amp matter?<... -- 8/17/2000 10:43 PM View Thread

Re: Signal phase in preamps?

8/18/2000 12:56 AM
Re: Signal phase in preamps?
I have always wondered if there are drummers who can hear the phase of their Kick. The drummer hears the head travel away and the recording almost always presents the signal as increasing pressure.  
The number of stages matters if your amp has a feedback loop around it. The extra inverting stage will cause the phase of the signal being returned to the earlier stage to be positive feedback, or regenerative.  
This can often be fixed by reversing the two plate leads coming fron the transformer.  
So what's the story on SE and polarity? I take it we are talking about the behavior before crapout, say onset of visual clipping, and bias is properly placed.