Manley Jumbo Shrimp upgrade


Would like to keep and upgrade my current Manley Jumbo Shrimp preamplifier.  Does anyone know of a competent tech who can accomplish this.  Considering $700-1000 worth of upgrades.  Thanks for input.

celtic66

Showing 3 responses by geoffkait

It should probably be mentioned that for the fuse skeptic and/or audio cheapskate it's worth reversing the current stock fuse(s) in one’s system you know, to see if perhaps one way actually is better than the other. What are the odds? Gotta be 50%.
wolf_garcia
2,660 posts
10-27-2016 1:49pm
Fuse directionality in AC circuits is technically irrelevant, and perceived changes in sound from reversing a fuse are likely imagined. Some think changing the direction meant you cleaned the fuse contacts and are hearing the results of that, but if the fuse worked before being reversed that’s also very unlikely, although cleaning any contacts is generally a good idea. Like washing your hands after meeting a politician.

There are many perfectly good reasons why some people have bad results with some tweaks. Historically it has happened for everything from the Tice Clock to Mpingo disc to expensive cables, silver holographic foil, the Intelligent Chip, the VPI brick and many other controversial things, like fuses. If you like I’ll list the reasons. I’ll give you a hint. One of them is that the person is so committed to his belief that the thing can’t possibly work he has psyched himself out. But just going by the testimony I read on the fuse threads on this forum alone, not even counting all the discussions on fuse directionality on other forums, the positive results outweigh the negative ones by, what, gotta be 20 to 1. The reasonable thing to do, it seems to me, would be to throw away the negative results as outliers.
The Wolf Man wrote,

(I don’t see why) Graphene dust in a fuse would make any difference.

Wolfie, maybe it’s because the Graphene is not in the fuse.