MXL 770 Mods

MXL 770 Microphone

We have two modification options for the MXL 770. Are you looking for a simple upgrade, or a full rebuild? We have what you need.


#1: Capsule Replacement

RK-47 capsule

If you've never upgraded a mic before, you might wish to start with something very simple. The mic's capsule gives you 90% of the sound of the microphone. In the case of most inexpensive condensers, the capsule is a $5-$10 part that, frankly, does not sound very good. Our line of premium replacement capsules will re-voice your mic, giving you a much smoother and more musically useful sound. In the case of the 990, a new large-diaphragm capsule will lower the mic's self-noise too. And it can be replaced by soldering just two wires. For the MXL 990, we recommend the RK-47 or RK7. Both make wonderful all-purpose microphones, with great detail in the mids, and a neutral to dark top end -- a welcome contrast to most over-bright condensers.


#2: 770 Circuit Replacement Kit

TL3 Circuit Kit for MXL 770

Our "TL3" circuit kit for the MXL 770 replaces the entire stock circuit board with our next-generation implementation of the Schoeps transformerless design. The kit replaces the 770's HPF switch with a 3-way pattern switch, giving you Cardioid, Omni, and Fig-8 patterns. The 10dB pad switch is retained too.

The circuit kit is not recommended if you plan to keep the stock capsule. However, the circuit kit performs extraordinarily well with our RK-12, RK-87, and RK-47 large-diaphragm capsules, giving you the performance of a $1000-$3000 microphone at a tiny fraction of the price.

Read more about our TL3 circuit kit for the MXL 770.