Of course one should notice, that strings for acoustic basses are not overflowing the market. So the number of choices are naturally smaller than for acoustic guitars. But I was able to test different kinds of strings for acoustic basses and I was indeed very surprised to find, that these Martin strings provide a very natural overall sound, both in matters of frequency range and tone. They sound brilliantly in high freq. tones and deep for low freqs. The latter is not self evident! A lot of other strings seem to swallow the deep growl feeling one wants and sound a bit tinny instead. These don't! The shiny bronze plating looks nice and it takes a lot of playing and with it perspiration to get these strings to look old. Even without the unbeatable price in mind, these strings are very recommendable for acoustic basses. But as I said. The price is indeed unbeatable. If you are looking for good acoustic bass strings. Take 'em!