Okay, finally got around to trying this at a couple of gigs. I've been trying to compare recordings on my Sony M10 with an iPhone.
First gig was as planned above, with some Church Audio CAFS -> Ugly battery box -> Splitter -> 1. Sony M10 and 2. Tascam iXJ2 + iPhone 4s
I've been wondering about using the iPhone to stealth, and have used it a couple of times previously with the iXJ2 and thought it was quite good. However, using the splitter to obtain a direct comparison of the same mics showed that the M10 was superior.
I was going to give up on the idea, but then wondered if it I bypassed the preamp in the iXJ2 it might be better.
Second gig last night, this time with the Church Audio CAFS -> CA Ugly 2 Preamp -> Splitter -> 1. Sony M10 and 2. Tascam iXJ2 (with levels turned down to zero) + iPhone 4s
Much much better. Little to distinguish between the two.
This might be my
kit for a while.