Last night I preformed the transformer modifications on my pair of Apex 210 ribbon microphones.  I decided to use the Lundahl LL2914 replacement transformers.  The reason that you would do this is to make a considerable difference in the sound and performance of the microphone.  In this case, the difference was huge.  I will talk about it and play before and after clips in the next show at Home Recording Show.  That show will be out on Tuesday or Wednesday.

Here is what the microphones look like:

Apex 210 Ribbon Microphone

I purchased the transformers at K & K Audio.  They were very easy to work with and they shipped the parts out immediately.

There is a great article on how to mod these mics with Cinemag transformers at Morph Productions.  It was a very similar operation.  Make sure that you get the little circuit board with the Lundhals.  It made the installation very easy.