The AEA Nuvo Stereo System is an elegant ribbon microphone system that allows for versatile miking schemes. It comprises the AEA SMS bar and two AEA Nuvo Stereo Mic Kits. Here is a further breakdown:

The AEA SMS bar includes the following:
AES SMS stereo bar
Vibration damping foam insert
Posi-Lok adjustable angle adaptor
Two 3/8-16 (EU) cap screws and 3/18-16 to 5/8-27 male threaded studs
Blumlein coupler
5/8-27 female to 3/8-16 (EU) stand adaptor

The AEA Nuvo Stereo Mic Kit comes with the following items:
SKB carrying case
Two AEA Nuvo ribbon microphones
Two shockmounts
Two cloth protective cover
SMS Stereo Bar
Two Nuvo Windscreens

It is simple to configure the AEA SMS in a number of ways, and is laser engraved with 90-degree and 117-degree angle and center-to-center spacing markings, so you can take notes about your experiments and repeat them at any time. Your stand support can be at the center or the end of the bar and can be attached either directly or by using the supplied angle adapter. Either American 5/8-27 or European 3/8-16 mic stands and stand adapters can be used.

Possible miking schemes include classic Blumlein stereo, which comprises two coincident crossed bi-directional microphones, where the principal axis of each is co-aligned with the null axis of the other. The front and back quadrants are in phase and of equal sensitivity but of opposite absolute polarity; the two side quadrants are out of phase with respect to one another. The Blumlein array provides the most accurate left-to-right stereo imaging of any mic system.

Another application is to use the pair of bi-directional mics separated by 20 cm but with the two mics aimed directly forward, rather than angled outward. This is a good choice when working in a long, narrow performance space such as a church. Of course, you can experiment with your own variations.