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When does my class Atoll IN200 A/B integrated switch from class A to class B?

I have an Atoll IN200 integrated amp (earlier version of this: https://www.atoll-electronique.com/en/products/integrated/integrated-in200sig/)

Having read a lot of praise about class A power, I’m wondering how to tell from specs when my integrated likely needs to switch from class A to class B?

The reason I’m curious is that I’m still wondering how my speakers might sound with a pure class A amplifier (such as Pass, etc.) but perhaps the integrated I have is already demonstrating much of that if there is a long enough delivery of class A power from it already? My speakers are 8 ohms, 87 db sensitivity, standmounts.

I apologize if this question is too simple; I hope I’ve posed it clearly.

P.S. This is not about dissatisfaction with my integrated or other gear (I have tubes, too). It's really just part of a longer term attempt to understand how different power sources change the character of a system, particularly the speakers.
128x128hilde45
rego
378 posts
 
For one when dynamic peaks occur ... generally one to three watts will drive 87 - 90 db plus peak draws equals crosses over to 'B' a lot and for brief duration (dependant upon content). 
Pass is a bit of an artist (topology sculpture) as are many designers and shows different ways to deliver audible qualities.
tablejockey
3,915 posts
 
I like reading the threads  of "I need X+ (typically 50+)of "class A" power, my speakers need 100 amps of current!

Laughable. Most here are probably listening to 3-5 watts of actual power?

twoleftears's avatar
twoleftears
5,318 posts
 
https://positive-feedback.com/audio-discourse/leaving-class-a-2019-redux-a-biased-opinion-from-nelson-pass/
Unless the manufacturer specifies the transition point or some magazine has done the measurements, I don't think there's any way of knowing exactly.  Manufacturers tend to boast about amps that run well into A before leaving and going into AB. So if a manufacturer doesn't specify, it's probably very low.
Still, the difference in sound that you might hear between your Atoll and a Pass or a Sugden isn't all attributable to class AB vs class A operation.
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