Black Coated Phosphor Bronze. Our black coated acoustic strings, provide an even longer life to Black Diamond’s superior duration. The coating will protect your strings from hand oils that can cause premature wear. All six strings are coated to give full protection and a balanced feel.
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600 SERIES BLACK COATED PHOSPHOR BRONZE
I was listening to Church Street Blues by Tony Rice, and heard the line "I wish I had some guitar strings old black diamond brand I'd string up this old Martin box" so I decided to try a set. I had never heard of them so I asked my 90 year old uncle about them. He used them when he was young. I love these strings. They look great, sound great and are for some reason easier to tune.