There's nothing quite like the full, harmonic sound of a played-in vintage 12-string.
Introduced in 1964, the Martin D12-20 maximizes the sonic potential of a 12-string because it utilizes the bigger soundboard of a 12-fret dreadnought body. With its bridge positioned closer to the widest part of the lower bout (where it is more flexible), the top moves faster with less effort. That translates into quicker, more accurate response as well as increased sustain. This also lends itself to a warmer, more bass-oriented sound across the board. When you factor in the lush, harmonic content of a 12-string, the result is an enormous, powerful sound.
This 1970 Martin D12-20 is in beautiful cosmetic condition. It has been well preserved over the last 50 years, and it sounds every bit as warm and rich as it should. Its pickguard has likely been replaced (hard to say for sure, but this one seems too clean), but fortunately there was no pickguard crack involved. There is a small repaired crack on the treble side at the lower bout, but it is otherwise crack free and 100% stable. It appears the neck was reset at one time, as well. Its previous owner kept it tuned down a whole step—D to D—and it plays well in that tuning. When you tune it up to E, its action runs on the high side, but resetting the neck would accommodate a lighter setup if this tuning was desired. But where it sits now, it's pretty easy to capo the 2nd fret and play in standard tuning. Period hardshell case included.