View Single Post
Old 6th August 2020
  #6
Deleted dc388e1
Guest
Quote:
Originally Posted by nedorama View Post
Yeah, kind of surprised as few people think of the Blues Jr. with its digital reverb circuit and tiny tank as a good Fender reverb sound... but to each their own.
Unless I'm mistaken, the Blues Juniors reverb circuit is solid state, not digital.

https://elektrotanya.com/PREVIEWS/63..._sch.pdf_1.png

Like a lot of modern amps (the Vox AC30 CC2 included), it's driven by op-amps rather than valves, but it's still driving a good old fashioned spring tank.

Using op-amps is more effficient than valves, which waste a lot of energy generating the currents required to feed a spring tank, plus you loose the need for an extra transformer.
Whether one or the other is tonally superior is in the ear of the beholder - I'm ok with either.

I'll be happy to be corrected on this, but I think from an engineering point of view, op-amp is superior. I'd wager the reason a lot of high end amps still use valves to drive the reverb is less about tonal superiority, more to do with the mains transformer needing extra taps for to feed the op-amps the +/-15V.