Detail 01
Solo tuning
Designed to sit a whole step above orchestra pitch, F#-B-E-A. Gauges and tension differ from a standard orchestra set.
Product detailSKU #1274034480203
D'AddarioHS610 Helicore Solo 3/4 Size Double Bass String Set
Independent shopping perspective
The Korena take
A four-string set for 3/4 double bass built for solo tuning, a whole step above orchestra pitch. For bassists working solo repertoire.
Strong match
Who this is for
- Solo repertoire and concerto work written for solo tuning
- Auditions where the part specifies the higher tuning
- A second bass kept permanently in solo tuning
Consider the trade-offs
When to look elsewhere
- Standard orchestra tuning — these are made for F#-B-E-A
- Bass guitar; this is upright double bass only
- Players needing a low B or high C extension string
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
3/4 size
The common full-size orchestral double bass. Sizing is by string length, not by how big the body looks.
Detail 03
Helicore, D'Addario's upright bass line
Sold as a matched set, so the four strings feel and age consistently instead of mixing lines.
Detail 04
$189.99 for the set
Upright sets cost far more than guitar strings and stay usable for years. This is an occasional purchase.
Detail 05
Complete set
Replacing all four at once keeps the bass balanced. Mixing new and years-old strings makes one stand out.
Final check
Know before you order
- 01Confirm your part actually calls for solo tuning before committing to this set
- 02Changing tension on an upright can shift the bridge and soundpost
- 03Strings only — no bridge, tailpiece wire, adjusters or rosin
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can I use these at standard orchestra tuning?
They are built for solo tuning a step higher. Dropped to orchestra pitch the tension falls off and response suffers. Get the orchestra-tuning set instead.
02Will these fit a 4/4 or 1/2 bass?
No. They are cut for 3/4 string length, the most common orchestral size. Other fractions need their own set.
03Are these for bass guitar?
No. Double bass only. Bass guitar strings are a different scale, construction and end fitting entirely.
04Should I change all four at once?
Yes, and one string at a time so the bridge stays under tension. Have a luthier check bridge and soundpost afterward.
