Manufacturer of exceptional strings and accessories for Violin, Viola, Cello and Bass

About Super-Sensitive

Super-Sensitive Musical String Co.® is in perfect harmony with your artistic needs. At the heart of our commitment to quality is a dedication to understanding the unique needs of musicians. It’s how the first Red Label string was made back in 1930, and why it’s still the leading educational student string today.


Through collaboration between manufacturing, musicians and educators, we’ve continued to innovate the industry with the highest-quality violin, cello, bass, and viola strings and accessories. The Red Label Pearl strings are just one of the exciting new products that continue our tradition of excellence and enable musicians to play to their full potential, from first try to first chair.


The proud history of the Super-Sensitive Musical String Co. has always been collaboration between manufacturing and musicians. From its beginning in 1930, founder Ed Wackerle knew that in order for his company to be a success, he would have to gain the acceptance of musicians. Mr. Wackerle started what is known today as our Endorser Panel; this panel included Igor Patiagorsky, Fritz Kreisler, Mischa Elman and Frank Sindelar (owner of a luthier music store in Chicago) to name a few.

He started the company out of frustration with the quality of strings being offered. From his frustrations and his many contacts with musicians, he developed a stainless steel string known as the Red Label® brand. It is still the flagship of our company today. The Red Label® brand is the string of choice by most educators for beginner and intermediate players.


In 1967, John and Vincent Cavanaugh (father) bought the Chicago-based company to continue its traditions. Their mission has remained the same: to manufacture bowed instrument strings of the highest quality with the finest materials. After moving the company to Sarasota, Florida in 1972, John set up a Research and Development Department. His research started with the Old Fiddler Line® which has become the favorite string among Country Western and Bluegrass musicians. With new and exotic metals being introduced to string making and experiments with a multi-stranded core gave them the Pinnacle® line of violin, viola, cello and bass strings.

Later, a complete line of accessories were developed that included bow rosins and polishes. Many products came from John's research and some from the acquisition of other companies. Additional accessories such as the Bowmaster, Tone Shaper, Stopping, and Spector Mute were the ideas of musicians who came to Super-Sensitive® for manufacturing and distribution.


As synthetic materials came along, the age old problems of the gut string that were susceptible to climatic changes were being addressed. For Super-Sensitive®, their answer was the development of the Sensicore® line. This new synthetic composite (nylon) material gave the musician the pure sound of a gut string with the durability of a multi-stranded string. The Sensicore® line rounded out the company’s lines of strings that range from the beginner to the intermediate to the professional musician.

In 1997, Jim Cavanaugh, the son of John and Ellen Cavanaugh, joined the company as Vice-President of Operations. He has brought about a multitude of capital improvements and the most advanced computerized machinery. In 2008 he was appointed President and John was named Chairman. They have expanded the Artist Endorser Panel to include Educational Consultants. Supporting music in our schools has been a long tradition for the company and is a significant part of its strategic planning. Through collaboration between manufacturing, musicians, and educators, Super-Sensitive® Musical String Co. continues to be the leader in string making. As you will see in this website, Super-Sensitive® is introducing several new products for students, teachers and professionals. Included in this are our most exciting new products, Clarity® Spectrum rosin and Red Label Pearl strings. Our Clarity line of rosins is professional bow rosin with hypo-allergenic properties. Clarity Spectrum also brings a fun aspect to playing with the many vibrate colors it offers.


The high polish provides the performance of a synthetic string which reduces overtones.  You will hear the difference and feel the difference in your bow's response! Our polishing technology allows for performance without the string becoming "slippery" and difficult for the bow to grab...a revolutionary way to play at an economical value. Pearl, like our other strings, provide performance.

Search by instrument

© 2020 Super-Sensitive Musical String Co. | DANSR, inc., Worldwide Distributor 4110 Fieldstone Rd., Champaign, IL 61822 | 217-531-0620