This thing looks like a million bucks and feels rock solid. Love the recessed ends that protect the switches and connectors from bumps and falls. USA! Hand built in Chicago and is put together with a very clean, tight, professional look.
Pretty spendy for a little metal box but your options for safely summing your signals to mono are limited. I chose this over the SC 318 mini Audiostix after speaking to the manufacturer and Brent, my Sweetwater sales engineer. While either device will do the what I need I was told that this box offers superior shielding and is the one recommended for a stage environment. The 318 they say is better suited for conference room presentations and things like that. The versatility of the SC700, given all the input options, made me decide to go with this one.
The only complaint I have... it really bugs me actually... is that that the xlr output does not lock (click in) the cable securely. The cable connector just slides freely and easily in and out of the unit; no need to depress the little tab in order to remove the cable. So this a $100 piece of hand-built pro audio gear that is made for use on a busy stage but the design will allow for the xlr cable to easily slip out if someone accidentally trips on a cable or something? SC says this is by design, for safety. Really? Then why aren't the rest of their boxes, including the Audiostix, built this way? This makes no sense to me as every other brand of even cheap, basic mono DI boxes I've used securely holds the mic cable in the output. Knowing that one little, accidental kick or trip on a cable could stop the show does not provide the peace of mind a $100 device should imo. The only possibly upside I see to all this is that it is one less thing for some newbie to break when they come along and just start yanking cables.
And while I know the inputs don't lock I think I can safely assume that they will/should be a short run from source to DI while the xlr cable is the one likely will need to find it's way to a snake or mixer somewhere.
I also considered some of the other boxes out there but didn't want the added complexity of mono/stereo switches to confuse new volunteers. I strongly considered the Radial AV1 but did not like the fact that the 1/4" inputs are parallel (not stereo) and felt that all the thru-puts and labeling on the input side of the box would again cause more confusion than it's worth.
Anyhow we have used the SC700CT a few times now and it does the job. The best part is I can now relax knowing that no one is going to come back on me saying I connected their computer or other device to the system improperly. If I knew for certain that everyone who would ever use this really knew what they were doing I very well may have gone with the Whirlwind pcDI. But in the end I think this unit was the right choice for our purposes.