Home Amp/Preamp Asylum

Looking for a new Amp or Preamp? If you're after tubes, post over here.

Let's remember the purpose of class A

That is, to eliminate so-called notch distortion. With adequate transistors this occurs only at very low output levels and transitioning to class B adds no distortion at higher output levels.

With good design the class A is only "insurance" against minute residual notch distortion. Enough bias, however, should ensure no abrupt, significant increase in distortion.

At the levels I listen, my Pass X150.5 is probably operating mostly in class A. In any case I don't hear any "klunk" or "florescent bulb" effect as RGA would have it.

BTW, according to Pass the X series amps operate single-end class A at very low levels, i.e. below one watt.




Dmitri Shostakovich



Edits: 04/04/14

This post is made possible by the generous support of people like you and our sponsors:
  Signature Sound   [ Signature Sound Lounge ]


Follow Ups Full Thread
Follow Ups

FAQ

Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.