What VMPS said.
The only time upgrading electronics will make a difference is if you are going from perhaps 10+ yr old equipment to new... or if the amps are truly underpowered to do the job required.
if your speakers were lower sensitivity with a 45° phase angle at the min impedance point of <4 Ohms at low frequency, you might have a case for an upgrade.
Per VMPS, if you aren’t hearing distortions and your equipment isn’t struggling... put your feet up and enjoy... and fantasize about the next real upgrade.