The Kolstein Ultra Formulation Supreme Double Bass Rosin is made by Kolstein & Sons, Ltd. They produce an outstanding rosin using their Ultra Formulation Supreme recipe.
Very minimal powdering and excellent grip equate to quick response and consistent sustain for both the veteran and beginning bassist.
It is a good rosin for players with respiratory difficulties.
Kolstein Rosins are specifically formulated for the upright bass, offering strong, even adherence, long lasting power and extremely low powdering. It has an indefinite shelf life made possible by a continual wetting agent in the formula which prevents crystallization, permitting easier application and minimum powdering while playing and also prevents the rosin from drying out with age.
A History of Kolstein Rosins
Upon analyzing the rosin situation of the modern day violinist, violist, cellist and bassist, it became apparent that the need for a consistent rosin specifically formulated for each instrument was greatly needed. Prior to the development of Kolstein's Formulation Supreme Rosins, rosin was generically made for all instruments with players being forced to use rosins which were not formulated with the individual instrument's requirements. For that matter, the violin, viola and cello players were using identical cakes of rosin.
Kolstein's Formulation Supreme Bass Rosin has corrected this problem. Through much tedious research and experimentation, the results have produced the Kolstein Rosins specifically formulated for the standup bass and for individual players needs. For the bassist, there is an option of hard, all weather or soft grade to accommodate personal needs. In producing the Kolstein Bass Rosin line, the most stringent product control exists, entailing: exact measurement of the finest ingredients in strict accordance with the developed Kolstein formulas. Pouring into silicon moulds to ensure uniform hardening and avoid thermal cracking. Adhering to a required minimum curing period for predetermined time. Packaging design for Kolstein's Formulation Supreme Rosin has been created with the musician's convenience in mind.