D'Addario J4402 Single Guitar String

D'Addario J4402 Pro-Arte — Extra-Hard B String for Classical Guitar

The D'Addario J4402 is a single replacement second string (B) from the Pro-Arte nylon line, designed specifically for classical guitar. Built from clear nylon in extra-hard tension, it serves as a direct replacement for the B string in the EJ44 Pro-Arte Extra-Hard set, so a single broken or worn treble does not force a full restring. The unwound nylon construction delivers the warm, rounded tone that traditional classical repertoire calls for, while the extra-hard tension gives the player more volume and projection than normal or hard tension options. At .0333" diameter, this string matches the gauge originally specified for the EJ44 set, keeping tension balance consistent across all six strings. A coated finish helps extend string life between changes.

Technical Specifications

• Number of Strings: 1 — single replacement string
• String Position: 2nd string (B) — treble register
• Material: Clear Nylon — unwound, traditional classical treble construction
• Gauge: .0333" / 0.85 mm — extra-hard tension diameter
• Tension: Extra-Hard — higher pull for stronger projection and volume
• Ending: Tie-end — designed for classical guitar bridge tie blocks
• Finish: Coated — treated surface for extended string life
• Compatible With: Classical Guitar

Who It's For

The J4402 is the right choice for classical guitarists who need to replace a single broken or worn B string on an EJ44 Pro-Arte Extra-Hard setup without buying a full set. Players who prefer extra-hard tension for stronger volume, brighter attack, and better projection in ensemble or solo performance will find this string matches the original EJ44 specification. It also suits guitarists who want to upgrade a single treble on a normal or hard tension set to extra-hard for a more powerful response under the right hand. The tie-end and standard classical gauge make installation straightforward on any traditional classical guitar with a slotted bridge.