Choosing an integrated for low volume listening

Is there anything in the Amp - Speaker combo that makes one combination better for lower-volume listening? I would guess the variables are Class A vs A/B, speaker sensitivity, and current.

Room: 13’ x 13’

Stand mount - Aerial 5T (I think)

Integrated options: Pass Int-60, Lux 509X, ML 5802, Lux 590ax II

Overkill for the space - nope, love it. 



Any of the Luxman would be suitable as there is a Loudness feature which is provided for low level listening. When the loudness feature is enabled, the bass and treble will be boosted and this really helps with low volume listening.

Having said that, I rarely use the loudness feature as I usually listen at around 50 to 60dB at low volume levels, 70dB normal levels. At very low volumes of say 30 to 40dB the loudness feature will then be useful.

I own the 590AXII and yes, I used the loudness at low volumes, and it does work wonders. Spearkers are Harbeth. But are you asking for a better set up then you have now or just other combinations?