That's how efficiency or lack of efficiency gets traded. In this case there is a sizeable net SPL output gain from putting in a gazillion watts and low end extension. But plug one in next to a E140 and don't go for too many lows and you probably couldn't be sure the Barefaced was plugged in.re: SC efficiency, I just noticed that I had to turn the volume up on the BB800 from where it was when powering a single Eden EX112 for the volume for the SC to equal that same volume. (I was surprised, I even checked with a SL meter) HOWEVER, when you increase the volume the Eden will soon struggle and reach its limit; the SC volume will go way beyond what the Eden can handle and have way more headroom, and sound great doing it and not break a sweat. The SC sounds great at any volume and will do just fine with a lower powered amp, I was just making a comparison between two cabs and one amp. Just for giggles and grins, I did the same test with the SC with an AI Upshot --- that was no contest, you need a lot more power to drive the Upshot (which I think is a nice tiny cab, pretty flat sounding but not quite as flat as the SC in my opinion) to reach the same loudness levels, but the Upshot will struggle mightily in sound quality as that volume increases! Again, I think the SC is great, I am not complaining, it fits my needs of a very flat, neutral sounding cab that makes it very easy to work with. I think Alex has come up with a brilliant one driver design that excels in a colorless, well dispersed sound, and sounds great at any volume level. One more point I would like to make is the SC goes down way low, but a very clean, flat, fundamental way low---nice.
Sensitivity is not loudness until you add watts.
). One thing for sure, the Barefaced 12 is not insensitive, but maybe it is part of the new approach in custom design bass speakers/cabs that belies traditional comparisons.