thanks for the shootout Lasse
what I heard
the c24 wasn't as tight in the low mids which made sound like it captured more lows and subs than the API but I don't think that's true.
The API is a touch brighter which brought out more fizz (comparatively).
It also seemed like the amp had more gain through the api, more aggressive but I guess it's just a faster preamp.
The API was tighter and didn't have that 'woofy' sound in the lows that the c24 did on the palm muted parts which definitely makes a difference.
API is great, I can see using far less eq and multi-band compression for those tracks while mixing. OTOH, with some eq and compression, transient shaping, you may be able to make the c24 sound just like the api.
Everytime I see Great River or any expensive pres reviews lately, I think of this thread:
Gearslutz
Also a good shootout. Clearly audible difference but both very usable sounds.
I did the test without reading the thread first.
A lot of people complain about having a different performance in shootouts but I say its still valid, especially here where its 3 tracks layered and more like a real life scenario.
anyway
Apple (GR) has far more highs and 'airiness' than the other. Maybe brighter than real life. Captures the attack of the bass with much more clarity.
Orange (ART) thicker lows, doesn't have that 'air' that apple had. Guitar sounds boxier with less pick definition. Bass is rounder which can be good. Overall sound is less exciting.
Strictly as tonal choices, the ART pre can be useful at times but you wouldn't want that color for all your tracks.
I wonder if that ART MP is the same as the Behringer 100.
Someone kept mentioning the Pre73, that design is much slower than the API design, even slower than the c24 pre, but a little more flexible with the drive control and impedance switch. It's not a bright and fast pre like an API, its supposed to be fat and slow like a Neve.