T-12 Microphone Kit
T-12 Microphone Kit
The T-12 is a stunning vocal microphone in DIY kit form. Intermediate-level hobbyists can build it in two to three hours. The kit provides a genuine vintage microphone circuit (based on a Neumann design) with a selected large-diaphragm capsule (based on the AKG capsule from the C12, ElaM 251, and C414). The finished microphone delivers great tone and vibe, with a frequency response that complements female vocals, dreadnought acoustic guitars, and drum overheads.
About the Circuit
Transformer microphones just sound different. This particular circuit yields a warmer, rounder sound than you'd get from a transformerless circuit.
The beneficial 2nd harmonic coloration from the circuit is not due to components we added, though; this mic has what might be the simplest audio signal path in any microphone:
Capsule → JFET → Capacitor → Transformer
We chose each of those parts with care: hand-selected capsule, manually biased NOS JFET, polypropylene output capacitor, custom transformer.
Greg Wells' Review
Greg Wells is credited with 85 million units sold (including Adele). Here's what he says about the T-12:
The SonicScoop Review
Paul Womack of SonicScoop built and reviewed the T12. It is a great review -- detailed and clear, with descriptions of both the build process and the results. Here is a sample:
"Now that I’ve done a number of male and female vocal sessions with the T-12, I can say that the top end is very smooth, but I’ve been equally as impressed with the midrange. It has a very 'solid' sound: vocals stand right up in the mix. Not in a 'peaky' way, but in a very full and up-front sounding manner."
Read the full review here.
Visual Color Choices
You can choose from a satin black anodized finish or a matte green powdercoat. Both are tough, integrated finishes that resist fingerprints, scratches, dents, and dings.
(The dark metallic color option has been discontinued.)
The powdercoat option costs a bit more because we actually bead-blast the black finish away, mask the body, and apply a 2-stage powdercoat, followed by careful sanding to ensure proper shielding for the circuit.
Please note that the powdercoat colors are applied in small batches. We frequently sell out of these, and do not consistently update availability on the website. If you order an option that is not immediately available, we will notify you via email.
The grille, for both body color options, is a 2-layer brass mesh with satin nickel finish.
About the Body (and switches)
The body has no external switches. This microphone has two internal switches, one for pattern (C/O) and one for pad. To access the switches, spin the end cap off of the bottom of the mic, and slide the body sleeve down.
It is best to unplug the mic from phantom power before opening the mic.
The RK-12 capsule used in the T-12 is characterized by a broad but mild high-frequency boost. In our acoustic sweep tests, the T-12 exhibits a very slightly boosted top end, approximately 1dB higher in output than a U87 Ai. But where the U87 Ai rolls off the top aggressively above 12kHz, the T-12 has more "air" in that top octave.
We have included comparisons with the Mojave MA-201 FET, which uses a similar circuit (single JFET/transformer topology), although with a different capsule type and size (32mm K67). On our test rig, the MA-201 has a slight scoop (-1dB) in the mids as compared to the T-12, and its high-frequency peak is slightly sharper, and occurs at a higher frequency (around 12kHz).
- Mic body, chassis, grille, and PCB mounting screws
- Swivel mount
- Zippered vinyl pouch
- Two custom PCBs, with 100% of circuit components needed to complete the circuit
- RK-12 capsule, supersaddle, screws, and wires
- Custom-wound transformer
- Comprehensive step-by-step DIY installation guide
- Tech support via email