everything sounded great until the upgrade

@grislybutter Under the hood, do you see those big donut torroidal transformers on each side?, and the two mosfet output transistors screwed into those heat sinks on each side... A nice dual mono class AB design. Letting those transformers bake and saturate a bit before playing will yield a different result too.

A quick and fun experiment to try one time. Leave your A3.2 integrated powered on for 24hrs straight and then listen again. Only need to try this once, 2-4 hours next time. Then, ratchet back from there until you find the warmup sweet spot for yours. My former dual mono SS torridal mosfet based amps sounded different at 1,2,4,24 hours. On critical listening days I’d let them warm-in for 2-4 hours, minimum of 2. Try it and see if you notice any difference or not. Should smooth out, sound a little softer and a little more musical too. An easy test if you wanna give it a go.

@decooney

Sounds like a harmless experiment, thanks! I will try it :)

I don't have a DAC. My wife will kill me.

@danager 

yes I have TOSlink out. So that's for the DAC? Sorry for my ignorace

I agree with others that have suggested playing it for a couple of weeks to let everything settle in.( Both the amp,and your ears). There is always the possibility that it just isn’t a great match for you.   Sometimes we buy things that don’t work right for our tastes,and that’s when our pride or ego step in,and we demand that it works, Maybe if I replace speakers,cables,source,things will sound better. Music and good sound reproduction is a great pastime. Enjoy it,and don’t stress out about it. Worse case,flip it and try something else.