2. amps-preamps
  3. 191770-3130

??? Fuse UpGrade??What Size???

 In an effort to maximize the potential of my SimAudio Moon 240i integrated amplifier I have decided to try one of the Synergistic Research Purple fuses...
 The owners manual states it uses a 4 amp,Fast Blow,Type AG fuse..
 However,there are 2 sizes of this fuse offered,5mm x 20mm & 6.3mm x 32mm..How do I determine which size I need? Pulling the old one out & measuring it comes to mind but I was hoping there is a faster way to determine this...
 Thanks very much for any assistance..

freediver
jastralfu's avatar
jastralfu
359 posts
 

@freediver keep us updated on the outcome.  I would be interested if you notice any difference.  I swapped in a Purple Fuse and did notice improvement, wasn’t night and day but there seemed to be a wider deeper soundstage and improved imaging.  Could all be in my head but I don’t think so.

freediver OP
1,173 posts
 

@jastralfu ,WilCo...

captaindidactic
79 posts
 

Let it burn in for a week and then switch the direction. If it wasn't in the optimal direction, you should hear a very noticeable difference. If it gets worse, well switch it back. I tend to oversize the fuse... thicker wire. 

hilroy48
161 posts
 

Go with a 6 amp fuse Fast blow. SR fuses had a history of blowing on inrush current startup if you went with factory size. 

evanpress
18 posts
 

The Cable Company has them on sale.  

I would call SimAudio (Moon) tech support to get their opinion/advice.  I've received helpful advice from them on my Moon 390 set-up.

 

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