Bought Two of these strings, one as a gift for a great Friend of mine who lives in Brazil, where those strings are very expensive, and one for his teacher who recommended it.
My Friend just got himself a second hand double bass and he is learning to play upright. This review is on his behalf, based on his feedback.
He cannot stop praising these strings: " they are a lot softer clearer and brighter, comparing to the ones that came in the bass. "
He claims it is "THE string for upright , for its growl, sustain, and brightness. "
Teachers comments:
"If you are primarily a pizzicato player , beginner or experienced" and want to get that clear jazz sound, the Spirocores are the way to go, and will enhance the sound of your bass"
"They are easy to Use, great Quality, Improves Sound
and will Last you for Years"
Needless to say that Thomann's service was amazing and I received the products in perfect condition in no time. They had the best price on those at the time as well.
Thank you so much , my Friends in Brazil are very happy