#1
some guy on craigslist said he bought a blue jr and regrets it because his princeton chorus sounds better, is this by any extent accurate?
#2
Different strokes for different folks dude.
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#3
Why do some people like Les Pauls and some like Strats? It's an individual thing. You have to listen to both yourself.
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#4
Blues Jr is based on the Tweed era fender tone which has it's tonal focuse in the midrange. The Princeton chorus is based on blackface era amps which have a wider frequency response and significantly less midrange. Which is better depends on the music you want to play.