C.F. Martin Acoustic Guitar Six String 80/20 Bronze Medium, .013 - .056, MSP-3200star rating 5Steve BeckwithOctober 29, 2009I use these on the dreads and jumbo guitars that I build, during gigs and in the studio. They have a great sound and a good life. I recommend them to most of my guitar customers (whether buying an instrument or if I'm repairing/setting-up an instrument for them. I also string my 000/0M size guitars with the SP Lights. Steve Beckwith Strings
C.F. Martin Acoustic Guitar Six String 80/20 Bronze Medium, .013 - .056, MSP-3200star rating 5Matthew ActonAugust 15, 2009Original equipment on my HD-28, and still the best sounding string that I have found for it. Bright, punchy, long sustain, with really wonderful overtones permeating the resonance. It is the benchmark I measure other brands against, and most sound muted and "soft" next to this. I tried others but keep coming back to Martins. They have a decent life span too.