Well, Santa was very kind to me this Christmas, and my wee studio finally got a Neumann u87ai. Despite the bashing this mic gets on GS with surprising frequency, it's actually my very favorite mic of all. I still love my Warbler MKID, however, so I thought I'd shoot the two out on my tenor saxophone! I made a backing track arrangement from one of my favorite John Coltrane tunes and recorded the same take with both mics, capsules as close together as possible. For me, the Neumann wins, unsurprisingly... but the 3U holds up incredibly well, particularly considering it's a tenth of the price. Of course, the Warbler is modeled after the vintage (pre-AI) u87, so it has a good bit less top-end and some more grainy saturation, I think. It still sounds lovely and I'll certainly be hanging onto it for when a more vintage vibe is needed.
Here's a playlist with isolated dry stems as well as full mixes featuring each mic. In the mixes, I put some reverb, delay, and light compression/saturation (via the NEOLD V76U73, which I love!) on the saxophone tracks. No EQ except for some 80hz rolloff via the NEOLD.
https://soundcloud.com/brian-donohoe...ai-vs-3u-audio