Home Amp/Preamp Asylum

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

Sure, A/B amp usually have lower bias settings

That's because the designer isn't intending to produce a whole lot of power in class A mode -- class A mode simply means that the amp is producing only the power output possible below the bias setting. A class A/B amp is a class A amp while operating under these conditions; when the power spikes above that limit, it operates in class B mode. This transition happens seamlessly and continually.

Or as Pass says, "Push-pull amplifiers generally operate in Class A mode up to a point where the output current is twice the value of the bias current. In the Class A region, both halves of the circuit share the signal simultaneously. Beyond that the signal is handled solely by the push (+) half of the amplifier or the pull (-) half."

So, e.g. the Pass X150.5 amp that I owned for several years puts out 16 wpc into 8 ohms in class A mode according to Pass.




NOT the 51st state, eh!?!



Edits: 02/03/22 02/03/22 02/03/22 02/03/22

This post is made possible by the generous support of people like you and our sponsors:
  Sonic Craft  


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.