Re: Quick and Dirty Bar Rig 2014 Edition
For mixers I have the following comments (in no particular order):
The Expression Si is definitely worth a look. I believe it is one of the easiest to navigate and strikes a really nice balance between features and ease of use. The down sides are that the remote application isn't as flexible or easy to use as some of the others, and if you want multi-track recording, you have to shell out another 1K for a MADI card to get it. Also, this mixer only has 14 vs 16 faders on the other models in this class. The meter bridge is only 4 segment from barely audible to clip.
Lots of people are fans of the Allen & Heath Qu-16. Like the Soundcraft, it strikes a great balance between features and ease of use. One really nice strong suit on this mixer is that you can do multi-track record and playback with only a USB hard drive connected. The down sides are a less powerful remote app than some of the others, and no possibility of expanding the channel count above 16. The meter bridge is only 3 segment and is quite small. Not sure how useful this really is live.
As you point out, the StudioLive AI's have a place in the show for sure. They are easy to use, and have the absolute best in class remote application IMHO. I like it even better than the DL1608 (which is my second choice for best iPad mixer interface). The lack of motorized faders, the very low mix bus count, and the lack of recall-able gain's are the obveous down sides of this mixer. I would also add that the non-AI versions also had a practically non-usable HPF having a slope of only 6db/octave. I don't know if this was fixed on the AI series or not, but I know it was a thorn for many guys I know who use the older version. The meter bridge on the SL is simply unmatched by anything in this price range.
As far as the X32's go, In order to be in the same marketing category as the ones I listed above, the only real competitor is the X32 Producer. The X32 series in general offer the most features and flexibility of any mixers in this category IMHO. They require some time to learn to setup (more for me since I came from analog and never had a digital before). If you want the most features, and like the idea of being able to setup a great custom rig for your own personal use, this is a great mixer. I think that it lacks in usability for a new user in comparison to the other mixers in this group. This is particularly true because of the 8 fader per layer model it uses and its lack of LCD scribble strips that its bigger brothers have. The other mixers in this catagory don't have LCD scribble strips either; however, they don't need it nearly as bad since they all have much less need to switch layers to see all channels like the Producer. The meter bridge is decent having a 6 segment LED which you can see fairly well.
Non-traditional mixers
If you are willing to give up most or all of your physical interface and replace it with a tablet and/or PC, there are a couple of options:
The DL1608 is positively tiny and easy to carry. It can do more than most analog rigs, and can be had for around $850.00 if you look around. Nothing touches it with respect to size and price IMHO. The remote app is very good .... nearly as good as the StudioLive. The downsides are that it doesn't have recallable gains, and there is no option for multi-track recording.
My current favorite (if one would just show up in the states) is the X32 Rack. It isn't quite as small as the DL1608, but it packs all the features of the full X32. The iPad app on the X32's is very flexible, but not as well laid out as the DL1608 and SL apps. The X32 Rack also sports a minimal interface which you can work with in a pinch even if you lost your iPad and/or PC control. It is only my favorite due to the fact that I mix from stage and can't get to the physical interface anyway.
These last two are only an option if you can live with the lack of a physical interface. I have yet to hear from a sound provider that runs a show from out front that felt they were ready to rid themselves of a physical interface, but YMMV
As for the speakers, I did lots of personal testing of the powered subs (KSub, KW181, PRX618S, PRX618S-XLF, DSR118, CVA118 and the HD1801). I can say that the XLF is simply in a class by itself in this group. There are those that like the KW181 (which would be my 2nd choice), but I have a neighbor that has a KW rig with these just down the road. When you compare them side by side, the XLF's just sound better and punchier (less woofey sound).
I would get a matching set of monitors and tops using the PRX712's for both and get a pair of PRX718XLF's. If you want to save some money and can find the 6XX series, they are absolutely fine speakers to own as well.