In the ME-50 there flex 4 in action pdf was often a noticeable lag which made it a show stopper when playing live, for some people.
The sound quality is superb.
The ME-70 is the latest multi-effects stomp box for guitar from.
The 50 would appear to have more tone options in the OD/DS, in fact I think 22 in total.As I said before, the sound quality is excellent, and even the very high gain settings like the Mesa/Boogie preamp setting are much quieter than any of my other tone boxes.So I won't go into those things, or operation in general.This feature is very misunderstood as to how it works.I'm guessing Boss won't discontinue the ME-50, but rather lower it's price.
I've saved the best surprise for last.
The Preamp section now feature distinct models of some desireable amps, namely.
Vox combo, Fender, bassman, 70's, marshalls, and, mesa/Boogie, dual Rectifier, in addition to a standard Clean channel.
As if there weren't enough foot switches already, you can add 2 more external Boss FS-5U or one FS-6, which will then switch the Preamp and Reverb sections on and off, as will also serve as separate Bank Select up/down switches.
Here I play just some notes in a pentatonic minor scale, played through 4 times in this order: (All through the "Tweed Bassman) preamp setting, same delay and reverb on all.).
What else is MIA?You can now modify the Modulation Rate or the Delay Level with the foot pedal, as well as the standard volume and wah functions.Amazing Amps, Preamps, FX, in addition to its stellar cosm amp models and effects, the ME-70 is outfitted with a new cosm Preamp section derived from bosss GT-10 and Legend series.You can also contact our, product Support department by phone or email.Unlike the ME-50, there is a separate memory area for User and "Factory" patches.Owners Manuals and, support Documents that you can download and reference).(switches on the sim).However, the ME-70 now splits some of those tone options off to the new Preamp section, which makes sense since some of the OD/DS choices on the ME-50 were amp-specific distortions.Foot Pedal FX changes.It has all the same standard features like tap tempo, tuner, etc.Some have complained how hard it is, but as explained in the manual it's simple to adjust, and when you do it you also recalibrate the pedal range.The simple knob-based controls for each effect section makes dialing in tone easier than ever, especially with the innovative EZ Tone feature.Do remember that having anything plugged into the rec/head out jack engages the simulation for both outputs.