Spirocore Double Bass 3/4 L : Not Sure.
I'm a pro/semi pro bass player of 30+ years.
I do double bass in the same manner of many of us in the same lucky situation: you do ok, get signed, get some money, get gear and buy a double bass. As such Double bass is realy a second instrument to me. I became good enough to be hired for it however, and for about a decade it was what I was hired for. I spent a bunch of time on Spirocore Mediums as I didn't know anything about the tension (on electric bass it's all about the gauge. I loved the sound, but was coming away from long sessions or performances with quite a sore swollen wrist from how much I was pulling on the stings at times.
I switched over to light tension to see if this would help....
- Pro's
The tone is really wonderful. Records well, amplifies well (Barcus Berry P/U into Sans Amp into SWR).
- Nice longevity of tone.
-Cons
Not really a con however I didn't ever really think there was a particularly large difference in tension between the mediums & the lights, which is why I swopped over to them.
Really, in itself the strigs are great. I can see no point (other than hubris or self absorbed extravagance) to spend more on a set that you do with these which are pricey enough, though I'm sure someone will see me as a peasant.

Technical Data
- Manufactured by Thomastik
- Released in 2003
- Average price : $182