Adamas Web Site Adamas strings use composite gauging to provide more consistent vibration and a sharper, more precise tone. For more about composite gauging, see String Anatomy 101. All strings in this section are for acoustic instruments. - Adamas 1717 Phosphor Bronze Extra Light (10-47) $4.95 Adamas 1818 Phosphor Bronze Light (12-53) $4.95 Adamas 1919 Phosphor Bronze Medium (13-56) $4.95 Adamas 1616 Phosphor Bronze 12 Strings (10-47/10-27) $8.68 Adamas 8080 Ball End Mandolin Strings (11-38) $5.40 Adamas 4646 Classical Nylon Ball-End (28-42) $4.73 String Anatomy 101