D'Addario J5902 4/4M D 4/4 Cello Strings

Warm, Stable D String for the Full-Size Cello

The D'Addario Pro-Arte Cello Single D String is a replacement D string designed for 4/4 (full-size) cellos and built around D'Addario's proprietary multifilament synthetic core. Manufactured at a lower tension than typical cello strings, this D string is engineered to maximize bow response and tonal stability — even under rapid climate and humidity changes. Players who have struggled with steel or gut D strings losing pitch in shifting rehearsal hall conditions will find the Pro-Arte's humidity resistance a practical upgrade. The warm, mellow character of this D string makes it a natural fit for advancing students, intermediate cellists, and amateur chamber musicians seeking reliable, easy-playing tone. As a single replacement string, it allows targeted service without committing to a full set purchase.

Technical Specifications

• Instrument: Cello
• String: D (single replacement string)
• Size: 4/4 (full-size cello)
• Tension: Medium
• Core: Proprietary multifilament synthetic blend
• End Fitting: Ball End
• Country of Manufacture: USA

Who This String Is For

The Pro-Arte Cello D string is the right choice for advancing students and intermediate cellists who need a warm, stable replacement D string that breaks in quickly and stays in tune through changing rehearsal conditions. Its medium tension sits comfortably between light and heavy options, making it a versatile fit for cellists who play a mix of solo repertoire, chamber music, and orchestral excerpts. The synthetic multifilament core offers more resistance to humidity and corrosion than traditional steel-core or gut strings, which makes this D string especially practical for gigging musicians, school programs, and players in climates with significant seasonal swings. As a single replacement string, it is ideal for cellists whose D string has worn out before the rest of the set, allowing targeted replacement without buying a full set. The medium tension also suits players who prefer a balanced feel under the bow without the heavier resistance of a high-tension string.