Martin MM12 Acoustic Guitar Strings - Retro Monel, Light - 12-54 Beech Full 4-channel stereo operation with

Full 4-channel stereo operation with separate Volume and FX Send per channel

8mm to 406

You can power this metal maniac with a 9 V battery or our PSU-SB DC power supply (not included)

It's both comfortable to play

M5 is your buddy who's got the garage filled with half a century's worth of modern and vintage effects

Martin MM12 Acoustic Guitar Strings - Retro Monel, Light - 12-54 Beech Full 4-channel stereo operation withMartin Retro strings are the real deal. Not an imitation. With Martin Retro strings, you get one tough set that offers true, consistent tone and sounds like nothing else on the market. Martins solid nickel copper alloy blend provides a reduced pick attack that allows the guitars tonewoods to be heard, not overshadowed. Martins proprietary Monel wrap wire is naturally corrosion resistant, so you can play them for a long time with nothing to get in the