Custom M7 Microphone

This microphone has an M7 capsule and custom transformer-coupled circuit. Its frequency response is essentially flat, with minimal proximity effect. The mic's high-frequency response is unfiltered, resulting in a very smooth top end roll-off.

The circuit is a single-stage JFET/transformer topology with numerous component upgrades, similar to the Platinum series mics we offer. All electrolytic capacitors are our bespoke Black Gate style parts. The JFET is from Linear Systems, selected for low noise and manually biased to maximize SPL ceiling. The output capacitor is a very nice polypropylene type. The output transformer is our own custom-wound 6.5:1 design, used in the T-12, T-47, and T-67 microphones.

The donor mic was a 'Blizzard' 990. We retained the LED feature; when phantom power is applied, four blue LEDs around the base of the capsule light up. (See photo.)

The M7 capsule is based on the old Neumann/Gefell design. This is not a K47, K67, or CK-12 type, but another design entirely. We love this capsule for voices and voiceover, acoustic guitar and strings. 

We have bundled the mic  with an elastic shockmount and a plastic clamshell storage case. The original MXL swivel mount is also included.

This product is a limited edition; we have only a few available.