Ernie Ball 7-String Power Slinky Cobalt Electric Guitar Strings, 11-58 Gauge (P02729)

I used to be a D'Addario user for 15 years, and 5 years ago I became a huge fan of Stringjoy. But over time I noticed an issue with stringjoy's unwound strings going "dead" too quickly, and seemingly causing unpleasant harmonics at certain notes.These Ernie Ball strings have so much character, and resonant with such pitch-perfect stability. I love how my octaves sound like a synth they are so accurate!

Excellent tension and sound! My new favorites!

Great strings!

All comparisons/descriptions are in the context of my guitar (alder body, maple/pau ferro neck with SS frets, hard-tail bridge). I've been using Stringjoy strings for a while now (freaking fantastic by the way, as customizable as you could want gauge-wise) which are very full and lively (lots of harmonics, plenty of mids and they feel amazing for strings made of standard materials). The Cobalts, by direct comparison, have a lot less mids, around the same amount of low end and a bit more presence on top. They jangle very well and would be great for a guitar/pickups that are a little clogged up in the midrange. The set I normally use has gauges very close to this set of cobalts, but the cobalts feel a bit more loose than I would have expected (a few reviews I read stated that, when questioned, the folks at EB said that they're made with a slightly smaller core wire and that's fairly easy to see when inspecting the ball end during installation). They feel a bit rougher than what I'm used to, but they aren't uncomfortable by any means. I feel the greatest strength of this material is just how controlled/quiet they sound. Not just because of the slight scoop in the mids, but I don't hear the strings ring between the nut and tuners at all. Compared to standard slinkys and paradigms the cobalts are far and away my favorite. I'll be switching back to my Stringjoys in 10-14 days, but these are great strings that I could see many applications for.

These are my go to strings for my Music Man JPX 7. I actually use a regular cobalt slinky set then take the 58 from these, then string up a 6 string to D standard with the rest, but anyways;These are great strings. One of my problems with thicker lower strings is that they can very easily sound woofy or too flubby. Not sure if it's a thinner core or the cobalt material itself but these strings (particularly the low B) are ultra clear. I guess if I could sum their sound up in one word it would be punchy! I've tried most other strings out there except for the M steel and I just keep coming back to the cobalt slinkys!Regarding string life, I wouldn't say they are a long life set by any means but they do last longer than regular slinkys. I believe the plain strings are RPS, so nothng new there. Overall, a great string in my book!

I like the combination of light top and heavy bottom strings, the sound great for heavier music

Excelentes!

Solid strings, great for drop tuning