Pass Labs Amplifier Meter meaning?

That makes sense as the XA is pure Class A.

I was told by Pass Labs that it reflected/measured bias. When changing from class A to class A/B the bias meter "bounces".

X.5 series amps - meter stays still means amp is operating in Class A. Usually that stand-still is at approximately 11 o'clock meter position. Once the meter starts moving, it means the bias is switching to A/B.

On XA series amplifiers, the meter, as far as I know, is there for looks only, since the XA series amplifiers are pure Class A operation only.

Given the reputation of Nelson Pass, I am amazed and a little disappointed to hear these meters are cosmetic only.

Agreeing that the meters look great, and in fact, are more than a small part of my lifelong desire to own a pair of Pass mono blocks.

But why not add some functionality? What a bummer.

I was "told" that it is current draw. The harder I drive my X-250, the higher up the scale the needle moves.