Detail 01
Zyex synthetic core
Warmer and rounder than steel, but settles in fast and holds pitch through temperature and humidity changes.
Product detailSKU #1274034479919
D'AddarioZyex Series Viola String Set 16+ Long Scale Heavy
Independent shopping perspective
The Korena take
Full Zyex synthetic-core string set for 16-inch-and-up violas, heavy gauge. For players who want gut warmth without gut's tuning instability.
Strong match
Who this is for
- Violists on 16"+ instruments needing true long-scale string length
- Players who want more pull and volume under the bow
- Anyone tired of gut strings drifting with humidity swings
Consider the trade-offs
When to look elsewhere
- Smaller violas under 16" — the string length won't fit
- Players wanting a bright, quick-response steel-core sound
- Thin-topped violas that choke under heavy-gauge tension
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Heavy gauge
Higher tension. More volume and resistance under the bow, at the cost of some responsiveness and ease.
Detail 03
16+ long scale
Sized for violas 16 inches and larger. On a smaller body the string won't reach the peg properly.
Detail 04
Full set
All four strings together, so the instrument stays balanced instead of one new string overpowering three old ones.
Detail 05
Viola-specific
Not interchangeable with violin strings. Tuning, length, and tension are built for the larger body.
Final check
Know before you order
- 01Measure the body length from the neck heel to the bottom edge first
- 02Fresh strings stretch for several days — expect repeated retuning
- 03Heavy gauge raises pressure on the bridge and top; check the setup
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will these fit my 15.5 inch viola?
No. This set is cut for 16 inch and larger instruments. On a shorter body the winding ends up in the wrong place at the peg and nut.
02How long do they take to settle?
Synthetic cores stretch for a few days. Tune often over the first week, then they hold steady.
03Is heavy gauge better?
Not automatically. It gives more volume and bow resistance. If your viola already sounds tight or slow to speak, medium is the safer choice.
04Can I use these on a violin?
No. Viola strings are longer and tuned a fifth lower. They won't work on a violin.
