One of the most intriguing announcements of the show was the partnership between Martin and Roland. At their Friday press conference, they announced the product of the partnership: a new preamp. The built-in AP-1 preamp is designed to improve the sound of acoustics equipped with piezos. It's loaded with features like digital reverb, graphic EQ, a tuner, and automatic anti-feedback.

Along with the preamp, Martin and Roland announced three new Martin models that will feature the technology: the DC-16 Dreadnought, the OMC-16 Orchestra Model, and the 00C-16.

They then demoed the unit, which you can hear for yourself midway through this video.