Pirastro Obligato Cello D String — Velvet Midrange, Elegant Blend (Medium)

The Pirastro Obligato D string is the set’s colourist: it bridges the A’s lyricism and the lower strings’ resonance with velvety warmth and smooth fullness. With its synthetic core designed for consistency, the D produces a dark, rounded timbre that makes legato phrasing effortless and inner lines glow in ensemble textures.

Detailed Characteristics
You’ll hear a rich fundamental supported by complex overtones, yielding a voice that blends rather than bites—perfect for orchestral and chamber contexts. If your current D feels edgy, Obligato replaces glare with depth and colour while keeping articulation tidy for spiccato and sautéillé.

Playability & Feel
Left-hand feel is pliant and comfortable, reducing fatigue in long services. The string speaks at low bow pressure, offering secure attacks and nuanced contact-point shading. Once settled, expect tuning stability and reliable responseacross the full dynamic spectrum.

Technical Specifications (Medium only):

• String: D-String (Cello)

• Core: Synthetic multifilament

• Winding: Aluminium

• Tension: Medium

• End Type: Ball end

• Instrument Size: 4/4 cello

Who Is This For?
Players who want a warm, blending D that still carries when needed—ideal for section leaders, quartet players, and anyone prioritising mellow, complex tone with tonal consistency across conditions.

Why Choose the Obligato D?
Because it’s the tonal glue of the instrument—silky, stable, and responsive—giving your cello a luxurious middle voice that flatters both solo and ensemble playing.