The Focusrite Liquid Saffire 56 isn’t a “pedigree” system in that something like a RME Fireface or maybe a UAD Apollo will sound a bit better, but it is very well equipped one lots of digital I/O so you can add some really nice kit to it down the track via ADAT if you like, full complement of 8 Mic Pres/Line in’s, pads, HPF’s, phase flip, couple of instrument in’s etc.. easy to buy a Focusrite Octopre to go with it down the track for example, run it into the L56 via ADAT and now you’ve got 16 channels, so you can run individual outs from your Tempest and still have plenty of channels left for everything else and still on a fairly affordable budget for the amount of I/O you’ve got and I can guarantee no one will ever turn around to after listening to a track you made and go “you tracked this through some dodgy Focusrite pre, didn’t you?”
Compare that to say an Fireface 800 from RME (don’t know enough about the MOTU line to do a comparison against them, sorry) and you get your lines in, but only four (i think) mic pres and a higher price tag for a gain in conversion quality that a lot of people wont notice.. (though if you were running a Liquid 56 and switch to a higher quality Interface but left everything else in your studio the same you’d probably hear the difference in that environment, i’ve heard a change in my monitors sound after switching interfaces before) mind you it still has the ADAT ports etc that will allow you to expand it down the track, so still plenty “future proof” in that respect.
You can use the line outputs on the Fireface to make a seperate mix for your artists to track against in headphones or whatever, but you’ll only have software control, whereas something like the Liquid 56 you get a dedicated volume knob and headphone amp output.. good if you have to panic and jump on a level quickly or your system freezes and leaves your speakers in peril.
So ergonomics as well as sound is something to think about..
But arguably if you plan on upgrading down the track in favour of a “pedigree” option you’re more likely to sell the 56 than say an Apollo which also provides DSP for your system and frees up your CPU or an RME or Apogee of something that has really nice converters.
Logic, Ableton, Pro Tools will all come with Compressors, EQ, Reverb etc etc and will run with any of the interfaces mentioned including the MOTU and if you’ve got a halfway respectable i7 driven Mac for your CPU then you won’t have any problems running dozens of instances of those plugins.
The idea of outboard processing is fun.. but for what it’s worth think about this…
Unless you’ve got a really good ear that isn’t fatigued from a days jamming and have a clear idea of what you want, compression and eq on the way into “the box” isn’t a smart idea compared to being able to track it clean and then spend as long as you like getting the perfect settings in software later on..
Yes you COULD track it clean and then send it out to analogue outboard later, but then you have to convert from digital to analogue again to send it into the outboard, process it and then resample it back into digital again, so arguably the quality loss from the AD/DA process isn’t worth the gains of the outboard.. which brings us back to why its good to only use your outboard on the way in.. but it has the “risks” i already mentioned above… but that being said using it wisely adds a special charm..
Regarding things like Moogerfooger effects you can get the best of both worlds by using a DI box to get a split of your instrument, send the clean split to your computer to be recorded, the Thru continue to the Moogerfooger and then record the “dirty” signal to the next channel.. or just record clean send it out the box to your desired FX and resample as arguably the downside won’t be as prominent with FX that aren’t designed to be transperant like Ring Mods, Chorus etc..
No simple answers.. but if the only reason you’re thinking of not going the Focusrite is because you were told it wasn’t good by for example, someone on gearslutz you never met, then maybe it’s worth rethinking and having a chat to the Hi Tech/PA guy at your favourite music shop.
But then again, i’m just some guy you’ve never met on the Moog forums, so what do i know? 