Yup, 'tis an Acus combo and it's fair to say that (on my brief experience with it) I wasn't impressed with it. Way way WAY too many knobs, dials and functions, and really not easy to get a tone I actually liked. We couldn't get any audible effect out of the on-board compressor either. The video that Umut shot with me playing through it (you can see it on his Facebook page) sounded like a tube train passing through a tunnel beneath us.
It's one advantage, if that's what it is, is that it's a 3-channel amp which allows for magnetic + piezo + microphone and all passing through the same unit.
Review? Well I've already covered most of the descriptive stuff already but ...
It's an absolute beast. It looks great, huge and imposing, and it sounds just magnificent. Its bulk will not appeal to many bass players, but after years of playing a Takamine TB10 I find it strangely re-assuring.
On a strap (Umut thinks of this as a lap bass, to be played sitting down) it hangs exactly the same way as my TB10, with the whole of the lower bout projecting to my right. This looks a bit odd, but makes the bass really very comfortable to play, and rock steady. The great depth of the body also makes a very comfortable arm rest.
The internal bracing is excellent, with two carbon-fibre rods acting as a fixed truss rod and two more carbon fibre supports running under the entire archtop. Although it looks like a set-neck design, it is in fact a disguised bolt-on and the neck is apparently quite easy to remove if I should ever need to do it. The bridge is fully-floating.
There's no access panel, so should any electrical work be needed I would have to remove and disconnect the jack socket and then pull the wiring back through the body to the two sound holes.
Umut had been experimenting with a clip-in microphone system too and he brought that with him. We tried it together but I wasn't impressed by the small amount of 'atmosphere' that it added, even less by the enormous increase in feedback that came with it.
If I'm looking for something to criticise, it would be the weight. The 4-string Iris is ridiculously light, not much more than 2Kg so about the same as a Hofner Violin bass. When I ordered this bass, Umut was sure that the weight would be little more than 3Kg - although I was puzzled by that. In the event, it weighs over 4Kg, which is hardly outrageous but is not particularly light either.
I've had the bass for just three days so far, but something that has already become apparent is that this bass has no interest in being pigeon-holed into one sort of music. I've owned (and still own) basses which are perfect for blues or for rock or for country, but the Big Boss seems equally at home in all of them. It looks like the sort of thing you see YouTube clips of with some very talented bass player doing subtle licks involving intricate harmonics, and you think "yeh, but can you play Brown Sugar on it?".
Well this bass is equally happy playing country, rock, blues, funk, reggae and rockabilly. I'd have no hesitation taking this along to pretty much any gig I play, and no doubt that I'd be able to get the right sound for that gig.
It's a seriously lovely thing.