I've been the proud owner of an Ashdown ABM 500 EVO II for about 5 years now (almost a personal record for holding onto a piece of gear!) I seriously love the tone and oomph this baby pumps out. It's performed masterfully from rock gigs to country to hip-hop and church music. Yet, I have almost never used the sub-harmonic feature on my Ashdown. It's not that I haven't played around with it at home, I'm familiar with what it does. But I'm curious as to how other Ashdown users utilize the sub-harmonic feature in a live setting. It's not as forward in the mix as my OC-2 octave pedal, but I like the girthy-ness it adds. Yet my Acme Low B's add a plentiful amount of girth as it is...but could I use more?? Is there any way I can make use of this cool feature in a live situation? Very interested in hearing how you guys use it at gigs of any kind.
'Nother ABM 500 EVO II owner here and, unfortunately, I can't help you. I've never used it on a gig either. I've never looked into it, perhaps there is such a thing, but since there is no pedal for it that I'm aware of I've always thought it was a great sounding but sort of useless/impractical feature.