Will there be a dramatic difference?

"@audiotroy  we are a parasound dealer theA21 is a good amp you want a jc5 which is a much better amplifier then the 21"

I think this is accurate from what I know.

At the moment, I just can’t spend an extra two grand. I went ahead and ordered the A21+. In the future when I have some extra money, I will probably sell that one and upgrade. However, until then I’m sure the improvement from what I am currently running to the A21+ should be amazing and satisfy my listening needs for a little while anyway.

It is a decent step up but to make better there are 1 main fuse and 4 -2 per channel fuses on the power rails  that I would at least replace with Hifi tuning  fuses

Can you tell me what size fuses and where to get these?

How exactly do hi-fi tuning fuses make the sound better