So these might look like a typical set of 9s (or Super Lights, or Extra Lights—everyone seems to call ‘em something different…), but trust me, they’re not.
The standard for 9s is typically 9-11-16-24-32-42, and while the gauges on the bottom end are solid, the top is all kinds of messed up. Why some other companies make them that way, I honestly couldn’t tell you—but never fear! Stringjoy fixed all that for you.
See, the issue on most sets is that the .011 has far too little tension to balance with the .009 and the .016 has far too much tension. So, with their Balanced 9s they fixed all that by using a .012 and a .015 instead.
The result is a set of strings that plays evenly across the entire fretboard and intonates better when set up properly. If you’re typically a 9s player, these are definitely the way to go.