I know the Genz Shuttle 6.0 and Streamliner 600 products had the same module. Although they're not made anymore I'm sure they were successful products in that time. With that said, I had the same experience with the Shuttle 6.0 where despite it's 600W advertised rating it didn't seem to have as much "push" as my 400W RMS Eden WT400+ and fell just a tad short for non PA assisted gigs. The Eden WT-400 by comparison was always just enough to get me through "loud" gigs.
For me, I always felt a little underpowered with any of the ASX125 ICE powered heads. I tried most of them if not all.
I also had a ShuttleMax 9.2 and a Streamliner 900 and both had the power I needed and then some. Admittedly they felt louder than my 400W Eden head but they didn't have that same ICE module. I think they had the ASX250.
What other bass amps are successful that were made with the 125ASX ICE power module?