Herbie's made some amazing music...as leader for Blue Note in the 60s, and with Miles, along with his Mwandishi band, as you mention, and the subsequent trio of albums Headhunters, Man-Child and Thrust, which pretty much set the benchmark for Fusion.
There's a NEVE in A. I think D is an SSL but don't quote me. I actually recorded My last bands demo in A on the Neve. Peace Out, Rev J