Corelli Bass Strings by Savarez have been made in France for over 100 years. Corelli strings for bass have a unique nomenclature that bears a second look.

The 370 Series bass strings are made of tungsten steel, a very strong, supple, lightweight material known for its high tensile strength in very narrow gauges. The 370 Series come in three gauges: 370Medium is the lightest gauge, and is great for acrobatic solo work, or for very lightly constructed instruments which are overstressed by heavier strings. 370 Medium bass strings are also available in fractional sizes. In orchestra tuning G-D-A-E.

370 Forte is the middle tension string and 370 ForteTX is the higher tension string. Both are an excellent choice for bass players wanting a hybrid use string.

Corelli's 360 Series bass strings are made of tungsten steel, a very strong, supple, lightweight material. These are very fine gauged strings for solo tuning. Like the 380 Series they are manufactured in 360Medium (thinner gauge) and 360ForteTX a higher tension. In solo tuning A-E-B-F#.

Corelli makes a bass string with a nickel wrap in orchestra tuning, the 380 Series. They are thicker than the 370 Series strings making them some of Corelli's more "usual" upright bass strings. 380 Series bass strings come in 380 Medium (remember, in Corelli Speak this is a thinner gauge string) and they come in 380 ForteTX, the higher tension Corelli string. In orchestra tuning G-D-A-E.

380TX is suggested for acoustic jazz work where maximum acoustic output is required. They have a strong sound and a richer tone.

The other Corelli bass string with a nickel wrap is a solo tuning string, the 390 Series. They too, are thicker than the 370 Series strings, and make an easy to play and well-priced alternative for solo tuning needs of smaller hands, or for players who want an easier to play bass string. In solo tuning A-E-B-F#.