Martin 0, 00, 000, 0000, D-18 comparison demo

Listen with headphones. All 5 guitars are 18 series sitka over mahogany. All 5 guitars are recent (within the last 6 years). All have Elixir phosphor bronze nanoweb 11-52 Custom light strings. BlueChip TPR-55 pick Audio Technica AT2021 mic