Considering the Parasound A23+ amplifier

The p6 preamp sucks ,  the $1400 AudioGD master 19 ,I got from underwood wally night and days better.

the A23+ is high current 5 fuses that are 8 amp T,  and a 2 amp T all 20 mm 

I am big into modding to get that last few % , just putting in a good fuse in back the

QSA yellow fuse ,a very good upgrade with a pretty respectable Pangea  AC 9-SE power cord using the Cardas copper is i big step up in sonics well over a 10% increase in fidelity , now installing the QSA blue fuses inside. $35 x5 was another Very worth wild upgrade  it’s like a totally different amplifier . If it’s high current a stock fuse is a Huge bottleneck ,just look up metals resistance index.

a stop buzz fuse steel zinc around $18; on the conductivity chart, the aftermarket fuse either synergistic purple, or qsa yellow fuse index rating at least 50  much less resistance much lower distortion or bottleneck. And when installing the fuse pull the tray out install fuse with writing from L to R facing UP !!

One big improvement for sure on back a 8 amp fusec used a qsa yellow fuse 

inside there are 4- 20 mm 8 amp T rail fuses I put4 qsa blue fuses in there 

and at the transformer a 2 amp T  fuse which is also a blue one all fuses have arrows-face them towards the back , and I uses cost effective Pangea AC 9 -SE 

power cords these upgrades totally  blow away the23+  by arleaet 15-20%

it has great detail, bass and natural warmth now , tweek get has fuses about  $450 invested , Perrotta consulting i purchased it from and got a pretty sweet deal.