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D'Addario Helicore Octave Violin String

4.4 4.4 out of 5 stars 129 ratings
$81.92
FREE Returns
Available at a lower price from other sellers that may not offer free Prime shipping.
Eligible for Return, Refund or Replacement within 30 days of receipt
This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
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Full Set
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Purchase options and add-ons

Brand D'Addario
String Gauge Medium
Color Blue
Instrument Violin
Finish Type Uncoated

About this item

  • Groundbreaking core technology engineered by D'Addario
  • The most popular violin string for traditional and alternative styles, plus advancing student players
  • Pairs exceptionally well with a wide variety of instrument types and musical styles
  • Fast, flexible, and responsive with a clear and focused articulation
  • All D'Addario strings are designed, engineered, and manufactured in the USA.

Frequently bought together

D'Addario Helicore Octave Violin String
$81.92
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D'Addario Helicore Violin 5-String Set, 4/4 Scale, Medium Tension
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Ships from and sold by Amazon.com.
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D'Addario Orchestral - Helicore 4/4 Size Violin Strings Set with Plain Steel E String - H310 4/4M - Full Set - Medium Tension
$54.99
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D'Addario Helicore Octave Violin String

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Product Description

"Scaled to fit 4/4 size violin with a playing length of 13 inches (328mm), these medium tension strings are optimized to the needs of a majority of players. The Helicore Octave Violin Set is designed to be played one octave below traditional violin tuning for a new world of tonal and stylistic possibilities. It utilizes the same core technologies as the original Helicore violin set. This set is considerably thicker than traditional violin strings. As a result, they require extra care to ensure they are properly installed on your violin. Please follow these guidelines for installation: Check that the grooves in your bridge and nut have room to accommodate the diameter of the octave strings. Excessive pressure or pinching may prevent normal movement. For best results, thoroughly apply graphite (pencil lead) to grooves before installing each string.
Helicore violin strings are crafted with a multi-stranded steel core, resulting in optimal playability while producing a clear, warm tone. The smaller string diameter provides quick bow response. Premium quality materials combined with skilled workmanship produces strings known for excellent pitch stability and longevity.
"

Top Brand: D'Addario

Highly Rated
100K+ customers rate items from this brand highly
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From the manufacturer

D'Addario Helicore Family
D'Addario Helicore Family
Available in Viola, Viola, Cello & Bass

Responsive to the Core

Helicore are crafted with a multi-stranded steel core for easy playability and warm tone. Incredibly flexible with a fast bow response, they’re optimized for many genres and styles. With their quick settling time, Helicore strings work well for both professional performances and classrooms.

Helicore Stranded Steel Core
Stranded Steel Core

RESPONSIVE & FLEXIBLE CORE

A stranded steel core contains steel wires braided together to produce a cable core, blending strength and flexibility together. Tonally, it provides a balance of clarity and complexity for versatility with great bow response.

D'Addario Orchestral Strings

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Helicore

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Prelude

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Zyex

Kaplan Violin

Kaplan

Customer Reviews
4.7 out of 5 stars
1,321
4.5 out of 5 stars
964
4.7 out of 5 stars
8,122
4.5 out of 5 stars
373
4.5 out of 5 stars
110
Price
$54.99 $28.98 $19.99 $49.50 $76.99
Tone
Focused Balanced Focused Balanced Rich
Projection
Medium Medium High Medium High
Bow Response
Fast Balanced Balancedd Balanced Balanced
Flexibility
Flexible Flexible Firm Flexible Firm
Core
Stranded Steel Synthetic Solid Steel Synthetic Synthetic

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Price$81.92$24.99$32.99$34.99$54.99$45.99
Delivery
Get it as soon as Friday, May 3
Get it as soon as Friday, May 3
Get it as soon as Friday, May 3
Get it as soon as Friday, May 3
Get it as soon as Friday, May 3
Get it as soon as Friday, May 3
Customer Ratings
4.44.4 out of 5 stars129
4.44.4 out of 5 stars129
5.05.0 out of 5 stars8
4.64.6 out of 5 stars50
4.54.5 out of 5 stars80
4.64.6 out of 5 stars457
Sound quality
4.7
—
5.0
4.8
3.0
4.7
Value for money
4.2
—
5.0
5.0
3.0
4.2
For beginners
3.1
—
5.0
5.0
1.3
4.5
Sold By
Amazon.com
Amazon.com
FiddlerShop
Viotti Music
Amazon.com
Amazon.com
instrument
Violin
Violin
Violin
Violin
Violin
Violin
string material
—
Stainless Steel
—
—
Silk & Steel
Nylon
string gauge
Medium
Medium
Medium
Medium
Medium
Medium

Looking for specific info?

Customer reviews

4.4 out of 5 stars
4.4 out of 5
129 global ratings

Customers say

Customers like the sound quality of the strings. They say that they sound cello-like, warm, and resonant. They also say that it's great fun to play and that it makes Bach cello suites very entertaining. Customers also mention that the strings are perfect for slow tunes and eerie music. However, some customers have reported issues with the quality and ease of attachment. They mention that they had questionable quality and that the winding quality was bad.

AI-generated from the text of customer reviews

16 customers mention13 positive3 negative

Customers like the sound quality of the musical instrument strings. They say the tone is amazing, the volume is modest, and the violin sounds warmer and more friendly. Some mention that the strings sound cello-like, deep, and resonant. Overall, most are satisfied with the sound and say it's good value for the money.

"...They are adequately responsive (for what they are) and while the volume is modest, they are loud enough for acoustic performing within some obvious..." Read more

"...of duets with my regular violin and the octave one and it sounds so nice- like I'm playing with a cello...." Read more

"...It works well. The sound is good. I put these both on a violin and viola. They both work well. The sound acoustically is not great but not bad...." Read more

"...Space saving. And it sounds gloriously awesome in large halls and acoustically ideal spaces...." Read more

5 customers mention5 positive0 negative

Customers find the musical instrument string fun to play and entertaining. They also say the Bach cello suites are very entertaining.

"...and tuned, these strings gave me a "chin cello" that is great fun to play...." Read more

"These are a lot of fun to play with, makes old fiddle tunes sound a little strange though in some cases...." Read more

"...BUT, once the strings were tuned the tone was amazing. It is so much fun to play with these octave streets especially violin duets with another..." Read more

"They are great fun! I sometimes play with my someone else on the regular violin and can do fun duets with this sound...." Read more

3 customers mention3 positive0 negative

Customers find the musical instrument string versatile. They say it's perfect for slow tunes and eerie music, and is adequately responsive.

"...They are adequately responsive (for what they are) and while the volume is modest, they are loud enough for acoustic performing within some obvious..." Read more

"...Perfect for slow tunes not so great for quick and fun" Read more

"I found these to be a great addition for slow and eerie music. Major problem I have is the G string rattles a LOT when you drag the bow too fast...." Read more

4 customers mention0 positive4 negative

Customers are dissatisfied with the quality of the musical instrument strings. They mention that the strings have questionable quality, the G string broke the first time they put it on, and the winding quality is also bad on other strings. Customers also say that the product is completely different than most fiddle strings and won't respond as quick.

"...Just need to keep in mind these pay completely different than most fiddle strings and won't respond as quick...." Read more

"...Strings had questionable quality. Checked my violin grooves to see if they had a large enough diameter for the strings and the violin did...." Read more

"...was making all the adjustments to put the Octava strings and the G string broke before starting to be tuned...." Read more

"...So disappointing. Winding quality also bad on other strings. This is the first and last time I put Helicore Octave on. That's it." Read more

3 customers mention0 positive3 negative

Customers find the musical instrument strings difficult to attach. They mention that the bridge notches need to be filed larger and that the nut and bridge must both be re-grooved.

"These are not a "quick easy" installation; the nut and bridge must both be re-grooved, and the back of the peg-box may need relieving to accommodate..." Read more

"...The strings aren't as briskly receptive as traditional strings, but oh, my, the sound is just FANTASTIC!!! It does sound cello-like: deep, resonant...." Read more

"...The E string was especially challenging to attach after removing fine tuner. BUT, once the strings were tuned the tone was amazing...." Read more

broke G string
2 Stars
broke G string
My violin maker was making all the adjustments to put the Octava strings and the G string broke before starting to be tuned. I'm trying to contact the support from D'addario and they are not answering me. I'd like to have another G string or to get the reimburse, please.
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Top reviews from the United States

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Randalph
5.0 out of 5 stars Basso Profundo for your fiddle.
Reviewed in the United States on February 21, 2023
Style: Full SetVerified Purchase
These are not a "quick easy" installation; the nut and bridge must both be re-grooved, and the back of the peg-box may need relieving to accommodate the thicker strings. Then, wax all the grooves, and bring the strings up to pitch slowly. Give them a bit to stretch and settle before final tuning, as they can break if brought to full tension all in one shot.

That said, once installed and tuned, these strings gave me a "chin cello" that is great fun to play. They are adequately responsive (for what they are) and while the volume is modest, they are loud enough for acoustic performing within some obvious limitations. The tone is dark and these are best suited for an instrument that is screaming bright.

They add an extra dimension for playing traditional music, especially for backup, and a nice rich texture to open up and enhance the sound of your ensemble. The Bach cello suites are very entertaining with these.
3 people found this helpful
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Jennybee
5.0 out of 5 stars Very fun on an electric violin
Reviewed in the United States on March 22, 2023
Style: Full SetVerified Purchase
I'm having a blast with these octave strings. I had a luthier alter the nut and the bridge so the thick strings fit in my electric, and got a really cheap cello bow. I've been making arrangements of duets with my regular violin and the octave one and it sounds so nice- like I'm playing with a cello. Definitely needs amplification, and would be a little difficult for beginners. I broke one when putting it on and am definitely bummed at how expensive they are to replace though.
One person found this helpful
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Daniel G
5.0 out of 5 stars Good sound for the money.
Reviewed in the United States on April 5, 2022
Style: Full SetVerified Purchase
I used this on a 14 inch viola to create an octave violin tuning it to GDAE. It works well. The sound is good. I put these both on a violin and viola. They both work well. The sound acoustically is not great but not bad. Under amplification and a little EQ, delay, and reverb it does sound very much like a cello. I would buy again.
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AJ Vick
5.0 out of 5 stars Looking for cello without the full size cello hassles?
Reviewed in the United States on May 8, 2021
Style: Full SetVerified Purchase
I wouldn’t recommend this for beginners just because it’s not necessarily the same as other violin strings however if you’re an amateur or pro musician looking for a cello sound with out the price tag of a full size cello, these are it.
I absolutely love these and I read cello music and can play cello I just didn’t like the bulk of the cello so these are perfect as I have a small single room apartment. Space saving. And it sounds gloriously awesome in large halls and acoustically ideal spaces. I’d definitely recommend these for anyone looking for a taste of cello and have fun these are awesome!!!
4 people found this helpful
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Nick Z.
4.0 out of 5 stars Fun to play with
Reviewed in the United States on August 12, 2022
Style: Full SetVerified Purchase
These are a lot of fun to play with, makes old fiddle tunes sound a little strange though in some cases. Just need to keep in mind these pay completely different than most fiddle strings and won't respond as quick. Perfect for slow tunes not so great for quick and fun
One person found this helpful
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Ethan Muter
5.0 out of 5 stars Wow!
Reviewed in the United States on April 12, 2021
Style: Full SetVerified Purchase
So I saw a couple videos online, and I had a spare violin laying around, and figured I would give these a try. It does exactly what they say, down a full octave, just like the videos. It's kinda of weird having and instrument as small as a standard violin be down in the cello range (yeah a cello is a 5th lower, but seriously the low string is the same G as the second lowest on a cello)
Oh and be sure you pay attention to the octave when tuning as these strings are pretty soft. Pull them too tight and they will snap.
2 people found this helpful
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benito
1.0 out of 5 stars no se como clasificarlo se ropieron al ponerla, la primera y la ultima se rompieron poniendolas....
Reviewed in the United States on April 19, 2024
Style: Full SetVerified Purchase
no se como clasificarlo se ropieron al ponerla, la primera y la ultima se rompieron poniendolas.... cuando se rompio la primera vi el nuemero el tamano coincide ro la tercera de una normal he la instale la de D y segui colocando las otras al llegar a la cuarta tambien se rompio
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Rose
5.0 out of 5 stars Fiddle adventure!!
Reviewed in the United States on September 6, 2020
Style: Full SetVerified Purchase
I LOVE THESE STRINGS!!!
Although I carefully had to slightly enlarge the bridge indentations to accomidate the wider strings, they otherwise easily re-strung.
Getting used to playing the heavier strings was a bit of a learning curve- need more bow pressure, and I felt my older and heavier bow worked better than the lighter carbon bow. The strings aren't as briskly receptive as traditional strings, but oh, my, the sound is just FANTASTIC!!! It does sound cello-like: deep, resonant. I'm playing my chin-cello violin more than my traditional one! I'm so glad I bought a 2nd violin for these!!
5 people found this helpful
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Top reviews from other countries

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Monica
5.0 out of 5 stars cordas avaliacao
Reviewed in Brazil on June 17, 2023
Style: Full SetVerified Purchase
cordas muito boa som maravilhoso.
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Ruben Rocco
1.0 out of 5 stars Attenzione suonano un’ottava sotto
Reviewed in Italy on December 29, 2023
Style: Full SetVerified Purchase
Non è specificato nella descrizione ma suonano un’ottava sotto. Sembra di suonare un cello. Credo che le recensioni scritte da utenti stranieri facciano riferimento ad altre corde sempre d’addario.
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tomekskrzypce
5.0 out of 5 stars Super
Reviewed in Mexico on April 5, 2021
Style: Full SetVerified Purchase
Muy buen prosucto lo estoy usando ya 9p dias. Sonido profundo.
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anne lederman
5.0 out of 5 stars Need to revise how this product is sold
Reviewed in Canada on December 29, 2019
Style: Full SetVerified Purchase
Love the product, but not the fact that Amazon only sells full sets and single strings cost $15 to ship from a different distributor (full sets are free with PRIME). I would have been happy to buy a whole set plus the extra string I needed (I broke one) but can't do that.
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The Fiddler
5.0 out of 5 stars Great fun - with a learning curve.
Reviewed in the United Kingdom on June 12, 2020
Style: Full SetVerified Purchase
It's worth noting that the string grooves in the fiddle nut need to be widened to allow the strings to fit correctly.
Similarly, the bridge will require re-fitting.
I also added an additional 12g of binding along the length of my bow in order to improve the voicing of the low G, as the tension is quite low.
Having done all this, the whole experience of playing with these strings is really great.
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