Fuse and Power Cable improvements 'how'? - Nuprime ID-8

Thanks for the feedback so far.  I'm a little surprised by my experience too.  So far, I've had the amp running for 20+ days with at least 80+hrs if not already surpassed the 100hrs mark.  The Kudos C2 has 88db sensitivity and is known to be relatively fairly easy to drive as a two way speaker.  I'm running very good set of 8AWG silver plate cables handmade by another member here on Audiogon.

Coming previously from a B&W 805N paired with Yamaha amp, so far my listening with my Kudos C2 with Nuprime is that while female vocals play loud volume wise, singers like Adele and Whitney Houston sound like they ran out of lungs (lack big openness ex: during the song 'I will always love you').  When I play large orchestral music like Beethoven 5th or Dovrak New World Sym., sometimes they sound ok while other times I can't seem to get the speakers to play with enough speed, tempo and musicality.  I'm guessing these symptoms are attribute by not enough 'juice' from the amp.

Surprising, a good portion (60%) of my music collection do play very well like Lindsey Stirling's Crystallize (24bit) or Elvis Presley's Remastered Collection.  The 40% miss is kinda driving me crazy...

Love to hear others thoughts.

Thanks again for the inputs so far.  I guess I'll try giving the IDA-8 another 100hrs to see how it sounds with 200hrs of run time.  Then I'll give power cable a try.  Next significant level up USB digital music integrated amp will cost a lot more $$$, really hope don't have to dish out so much....

No unfortunately nobody carries NuPrime around Seattle area.  The few stores here carries Naim, Rega, Cambridge Audio, Rotel.  But these brands don't make good integrated USB amplifiers that meet my digital 24bit/DSD hi-res music needs.  I had a Yamaha A-U671 before, great amp for $70 but the class D sound was too cold once broken in.  Was going to move to Yamaha's S-801 which is A/B class but thought I'd give NuPrime a try given the rave reviews.