Thread: Attention all Luxman 595 owners - What volume percentage does it switch from class a to class ab?

For Luxman 595 - What volume percentage does it switch from class a to class ab?

Using blue tooth streaming from my phone on the eversolo Z8 (vol 100%), I can put the Luxman 595 up to about mark 21 on the volume dial. This is right before it gets so loud it feels like it might start to distort. Also, I like to keep the loudness button enabled at all times. I like the fuller sound it gives.

Does anyone know, am I still in class A at this point?

Note: currently using Sonus Faber Lumina II speakers which are not very efficient at 86db

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There's not a specific volume control setting that corresponds to when Class A operation will go into A/B, there are too many variables involved. Output level of the source component, dynamics of the music, loudness control setting, etc. Just enjoy the music, as long as it sounds good you have nothing to worry about regarding its class of operation.

Originally Posted by a.wayne

All SS amplifiers transitions to Class B from Class A once pass quiescent Bias , on the Luxman i think its at 15 watts or less..!

Above this is Class B operation ..!



Regards

I believe that is for the normal luxman class a/b amps? But for the 595 it's 30 watts class a and class a/b after?

I know nothing other than to consider gain-staging. Setup the powered components in their sweet spot. I'm trying to find mine, it's a work in progress. Probably you're way past this but also it seems to be a moving target (not moving that much really) if things are breaking-in. Anywho, just set the amp in one spot/ narrow range?, if you need to boost its volume later to fit your room, then dial it up later? after all the other stages are sweet. I hope that works because that's what I'm doing.

edit jeepers I'd love to try a Luxman Class A. I've got Pass and First Wattters. And Parasound JC that runs A. I've never got the JC's to A/B type volumes, yet.

Originally Posted by Dman777dman777

For Luxman 595 - What volume percentage does it switch from class a to class ab?

Using blue tooth streaming from my phone on the eversolo Z8 (vol 100%), I can put the Luxman 595 up to about mark 21 on the volume dial. This is right before it gets so loud it feels like it might start to distort. Also, I like to keep the loudness button enabled at all times. I like the fuller sound it gives.

Does anyone know, am I still in class A at this point?

Note: currently using Sonus Faber Lumina II speakers which are not very efficient at 86db

The amp does not 'switch' between modes. It is more aptly described as a transition, one which you can't hear. Really. So don't worry about it. When you are pushing the amp hard to where is sounds loud, its clearly in B operation at that point since its near full power.