I’ve heard that people like Guitar Guitar Rig w/ hardware, but I don’t know much about Complete Audio unit hardware. It’s good to know you are satisfied with the performance. Never cared for NI software support system though. If it works, it works I guess. I can’t use the UR824 with my guitars, there is no way to get a clean guitar signal - distortion no matter what. I suppose people who use distorted guitar don’t notice anything different. Maybe some mics and guitars work better than others, but the Shure dynamic mics we’re using will distort at times. It looks like another device is necessary to control the mic signal pre-UR.
I don’t know the circuit layout on the UR models, because I haven’t opened one up, but I would imagine the power caps would be the first thing to replace.
I’m using an EMU 1820m for guitars. I really like it. It is perfect for running PC based FX out to an amp, but only decent for PC alone, but still, it’s 100 times better than the UR824. 824 is unusable with my guitars; not impressed with it at all. I like the UR with mic, BUT I need to be really careful about distortion. I’ll never buy any Steinberg branded hardware again.