got my ef5 today, it was used and thoroughly burned in already
while the frequency peaks/valleys have not changed much, the overall sound is definately softer, looser, more expanded, and smoother compared to my decware zen head. I guess that's what a tube is for eh? i liked the zen head sound a lot too - just a different flavor with the ef5, but closer to what i like so ef5 FTW!
im happy with this combo. clearly this amp is overkill in the power department as i find i have to adjust the volume in barely turn milimeter increments, but i can live with that
looking forward to rolling some tubes!
eventually still considering saving up for the CSP2 but that may take some time given my limited funds











