JC1 upgrade to Lamm M2.2 or dartzeel 108B or Ayre?

I currently driving Harbeth M40 with parasound JC1 amp, my pre-amp is Conrad Jonson Act 2 series 2, source is PS audio DirectStream

I am thinking upgrade my system start with JC1

I need some advice: do you think Lamm M2.2 is a better amp than JC1, how about Dartzeel or Ayre

I have no plan to update Harbeth M40 yet

thanks in advance