Transformer-Coupled Mic Rebuild

Description

This mic mod/rebuild applies to transformer-coupled mics such as the MXL 2001, MXL V67g or M-Audio Nova (and many others). These stock mics typically have K67 style capsules with circuitry that does not properly compensate for the high frequency boost of those capsules. They also tend to have very low quality output transformers with thin low-end. The result is a thin, harsh and sibilant tone.

Your mic’s capsule, electronics and transformer are fully replaced drastically improving the tone and performance. The circuit is replaced with our BFM (Big F’n Microphone) circuit which is modeled after the Neumann KM84 but adapted for a large Capsule.  A Boutique quality CineMag or AMI Transformer pairs nicely with this circuit.  This is a mic mod well worth doing. An optional internal pattern switch allows switching between Cardioid and Omni. Without the switch, the mic is fixed cardioid.

Your modified microphone will be returned after just a few days in our shop.

This is a rebuild of YOUR transformer-coupled mic.  Please contact me before purchasing. 

Standard Upgrade

• k47 style Brass Ring or Ck12-style* Capsule in Custom Mounting Cradle
• All-discrete BFM transformer coupled circuit

Transformer Choices

• CineMag (USA) 5722w. This is a very high quality transformer which is still moderately priced. It has a very full, even tone with great harmonic content and transformer crunch. Probably the best choice overall for most applications
• The Tab-Funkenwerk (USA) T12 style. This is a more expensive transformer. It has a massively fat and full low and low-mid response. Although it has great high frequency response, you may perceive the overall tone as slightly dark because of the extra full lows and low-mids.

*CK12 style capsule may not fit in all mics.