How do you describe RainSong's JM? Three words: loud, loud, and loud. And if that's not enough, it's also loud. This is the largest body RainSong builds. The sheer size, combined with the attributes of Projection Tuned Layering™ make the JM one of the loudest acoustic guitars on the planet. This guitar is loud. We had to say it again. But the JM is not just about power. The narrow waist and some layering refinements specific to the Jumbo soundboard give the JM some real fingerstyle grace. The guitar is strong, but impeccably balanced, with bass, mids and trebles distinct, clear and, dare we say it again, loud.