Parasound a21 upgrades


Bought a lightly used 2 year old Parasound A21 some days ago. It has exceeded my expectations for sure. Right up my alley warm mids and non aggressive highs but also dynamic and tight with lots of headroom. 
Are there any mods that are reasonable to do to these amps? Fuses etc. Can the bias be safely increased to add more class a watts? 
Also have there been any changes over the years? So is a 2 year old A21 the same as a 15 year old one? 

Thanks
mofojo

Showing 3 responses by georgehifi



Sorry! typical fuser, you quoted it, so prove it.
It’s bs if you don’t or can’t, simple as that.
jdub3 In a thread on Audio Asylum , we had a great discussion a few years back with Mr. Curl who said if given the choice he would've used silver fuses in the Halo amps, I used the Silver Star in my A21 and the results kicked up several notches in refinement across the spectrum , there was a reason I kept the A21 around for 12yrs , it just flat out sounded so good!
Prove it with a link to it, AA retain all links.
Right up my alley warm mids and non aggressive highs but also dynamic and tight with lots of headroom.
What more can you want, John Curl's not an idiot, if he thought a "snake oil fuse" would make a difference for the better again he would have put it in.
Don't listen to these "fuser twits" here, they have absolutely no idea, and that's about their technical skill limit, to change a fuse, so that's all they will do and comment on.

Cheers George