RMAF 2016: Vinnie Rossi, Harbeth, Fidelis, Acoustic Signature

[amirm]

 

[amirm]

As you see above, there is a bank of "supercapacitors" in the amp. Supercaps have much higher capacity than normal caps but not much energy density (much lower than batteries). So I asked him how it was possible that the thing would run on supercaps. He said there are two banks, each alternating between charging and powering the unit. He said there was enough charge for roughly 10 minutes or so. Pretty clever! Assuming there is full isolation between the banks, then it acts like a battery driven unit with super low impedance voltage source.

 

[amirm]

Black Sheep by Natalie Merchant. http://shz.am/t111069236

Another favorite artist of mine.

Hmmm, can't find a video of it. Follow the Shazam link above and play track 7.

This was a great track and nice, focused vocal image.

 

[amirm]

Cuando Silba El Viento by La Segunda. http://shz.am/t82921485

Nice and mellow but with sufficient level of high frequency detail.

 

[amirm]

This was a great track. Hopefully Shazam found the correct version: Bach: Keyboard Concerto No.5 In F Minor, BMV 1056: Largo by Simone Dinnerstein. http://shz.am/t53080314

This was a dead room (you can see the cushions used as absorbers). Configuration was diagonal and to good effect.

 

[amirm]

Early Morning Light by Sarah Jarosz. http://shz.am/t313023129

Another fine performance.