A revised setup with a larger pair of speakers and a reference mic is tried. Much better.

Two Dayton EMM-6 measurement mics. The “factory” calibration files are here.

The noise at 3KHz and up is the fan in my laptop. Unfortunately, I didn’t realize that till afterwards.

Behringer ECM8000 measurement mic. Anything below 20Hz is background noise.

Neumann KM84s. Nice small cardioids.

Audio Technica Pro 37s. Flat & natural lows and mids. Some presence rise without lots of “air.” 

MXL 991 cardioid SDCs. Green = stock. Yellow = modified. Flat with a “detailed” top end. Response curves are only part of the story of how a mic sounds, however.

MXL 990 large body cardioid SDCs. Green = stock. Yellow = modified. Same capsule as the 991, but the side-address body and head basket adds a presence peak @ 3-5K.

MXL R144 Ribbon. Mellow. It picked up the computer fan, and the low end rises due to proximity.

AKG C451 Cardioid SDC. Detailed and airy.

Shure 315 Ribbons. My first “real” microphones. Over 50 years old. Lookit that transformer ring at 18KHz... Resonates with the input RF bypass caps in the TASCAM US-144 interface. Picks up 60Hz hum good, too. Much happier with other preamps.

AKG Perception 220s. Really picked up that fan. Also has that +9 at 9 KHz peak typical of Chinese “K67” capsules. It’s less annoying in these AKGs than most, though.

AKG C-414 (omnidirectional).  The all-purpose workhorse mic.         ... pictures in the next post ...