Viola Pirastro Obligato Strings Set
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Pirastro Obligato · Complete Viola Set
Obligato set, warmth and
tonal coherence.
All four Obligato strings for 4/4 viola in a single pack. Synthetic core construction with a deep, dark character and consistent response from C through A.
Set value
Save $10, plus the matched response of a complete pack
Why buy as a set
Three reasons to take the whole pack.
Tonal coherence
All four strings are voiced together by Pirastro for the same tension profile. You get a matched response from C through A without mixing voicings or brands.
Better price per string
Buying as a set saves $10 versus the four individual strings, and removes the friction of ordering one string at a time.
Ready out of the packet
Allow 24 to 48 hours of normal playing for the strings to settle, then the set is ready for orchestral, chamber, and solo work alike.
About Obligato
Synthetic core, gut-like warmth.
Pirastro Obligato strings are synthetic core strings engineered to replicate the warmth and tonal complexity of gut strings, without the instability that comes with natural gut. The viola range delivers a deep, dark tone with smooth fullness, making Obligato one of the most consistent warm-voiced options for 4/4 viola.
The construction keeps pitch stable across temperature and humidity changes, which suits rehearsal schedules and touring musicians alike. Players who prefer a mellow, complex character over brightness or cut tend to return to Obligato season after season.
The four strings
Each string, in detail.
A string · 4/4 · Medium
Clear, warm top voice
The A opens with a clear, focused tone that transitions smoothly into the D without tonal gap. Warm without being veiled.
D string · 4/4 · Medium
Full-bodied middle
Round and full at the tonal centre. Enough body to project in ensemble textures without losing Obligato's characteristic warmth.
G string · 4/4 · Medium
Rich, dark lower voice
Carries Obligato's characteristic darkness. Blends naturally in orchestral playing; in solo passages it gives a resonant, singing quality.
C string · 4/4 · Medium
Deep, resonant foundation
Broad and resonant. Sustains well and responds evenly to varied bow pressure, giving the lower register a stable, warm foundation.
Technical specifications
Materials and construction.
| A | Synthetic core · Medium tension |
|---|---|
| D | Synthetic core · Medium tension |
| G | Synthetic core · Medium tension |
| C | Synthetic core · Medium tension |
| Size | 4/4 viola |
| Set | Includes A, D, G, C (one each) |
| Origin | Manufactured by Pirastro, Germany |
Just need one string?
Replace a single A, D, G or C without buying the whole set. Same Obligato construction, available individually.
Frequently asked
Pirastro Obligato viola set, in short.
What is included in the Obligato viola set?
The set includes all four strings for a 4/4 viola: A, D, G, and C, one of each, all in medium tension, in Pirastro Obligato's synthetic core construction.
Why is the set cheaper than buying the four singles?
The set is $256 versus $266 for the four singles totalled, saving $10. The bigger reason most violists buy as a set is tonal balance: all four strings are voiced together for matched response from C through A.
How long do Obligato strings last?
Several months under regular playing. Replace when the sound becomes dull or intonation in the upper positions starts to go false. Wipe rosin off after each session to extend lifespan.
How long do new Obligato strings take to settle?
Allow 24 to 48 hours of normal playing for pitch to stabilise. Retune gently in small increments during the settling period.
Are these strings authentic Pirastro?
Yes. Symphonia stocks Pirastro strings through the official supply chain. If a string is faulty on arrival or fails prematurely under normal use, contact us and we will arrange a remedy.
Need help choosing?
We can match the set to the instrument.
If you are not sure whether Obligato suits your viola or playing style, email info@symphoniamusic.co.nz and the team will help.
Shop individual stringsShipping Information:
• Nationwide Delivery: We offer a flat rate of $6 for delivery anywhere in New Zealand (NZ Post Courier).
• Orders are usually processed and dispatched within 1–2 business days.
• Once dispatched, delivery typically takes 2–4 business days nationwide. Rural deliveries may take an additional 1–2 business days.
• Tracking information will be provided once your order has been dispatched.
• Please ensure your delivery address is accurate to avoid delays.
Return Policy:
Our return policy includes a 14-day guarantee for all orders. You'll receive a full refund for items returned in 'like new' condition with original packaging within this 14-day window. Please note, shipping charges for returns are the responsibility of the customer and will not be refunded.