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Jadis Preamps JPS8, JPS2 and JP80


Hello
What are sonic differences among JPS8, JPS2 and JP80? I could not find anything about JPS8 and JPS2.

Thank you
eavr11
doug99
288 posts
 
I also believe the JPS8 and JP80 have 2 volume controls and the JPS2 has 1 volume control
loki1957's avatar
loki1957
122 posts
 
The JPS2 has 2 volume controls that are tied together
pico11041968
5 posts
 
it's simple the worse equipment i ever hear, the jadis equipment is very poor, the sound is black , not defined, and the money pay is only the name , and the name is only an name, nothing else, the best equipment that i ever hear, and talking about valve preamplifiers is WIREGAIN.
tubesrule's avatar
tubesrule
100 posts
 
Loki1957 mentions the two volume controls are tied together (ganged).
Does anybody know (as I've seen some preamps) with this feature and some products without.
Is this is something they did a newer production models or older models or  models for a few years and now the newer ones are no longer tied together?
I've seen them ganged in jp80mc from the 90's.  
rcprince
3,073 posts
 

Originally they were separate, then Jadis started the ganged controls in the early 90s.  Not sure what they do now.  Victor Goldstein (then the Jadis importer) offered to put them in for me in my JP80 at the time, but I turned him down.  It obviously made it easier to move the volume to the same level in both channels, but I preferred just counting the clicks so I could play with balance if necessary.  Victor also showed me how to defeat the ganged pots if you wanted to play with the L/R channel balance--you just have to pull out one of the volume knobs a little (not sure if both of them worked like that or just one) and it would work independent of the other channel's control.  I taught that trick to an audio reviewer who owned one and complained that he couldn't adjust the balance.

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