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Ernie Ball 2921 M-Steel Regular Slinky Electric Guitar Strings
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The Ernie Ball Slinky Story

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Ernie Ball: String Alloys - M-Steel Slinkys on the Cutlass HSS

Description
Made of Ernie Ball's patented M-Steel alloy, these strings produce a robust tone with crisp highs, thick lows, and harmonically rich overtones. The M-Steel hex core and Super Cobalt windings are specifically engineered for higher output and definition, allowing your tone to cut through any mix. For over 50 years, Ernie Ball strings have been the choice of musicians looking to unlock their instrument's full potential. The 2921 M-Steel Regular Slinky strings continue this legacy of performance and innovation.
M-Steel Hex Core Wire Provides Ultra-Stable Tension
At the heart of the 2921 strings is a maraging steel hex core wire that provides maximum tensile strength and tuning stability. Maraging steel, used in high-stress applications like aircraft parts, allows for a thinner core gauge without sacrificing durability. This results in a string that has enhanced flexibility and reduced mass, producing a clear tone with full-bodied overtones and crisp articulation.
Super Cobalt Windings Add Output and Clarity
Ernie Ball's patented Super Cobalt alloy is wrapped around the maraging steel core to create windings that significantly boost the strings' output while accentuating pick attack and harmonic content. Super Cobalt's magnetic properties translate the energy of your pickups into a powerful tone with rich overtones and clear, singing highs. These windings are designed to bring out the best in high-gain amplifiers and overdrive pedals.
Fine-Tuned Gages For Balanced Tension and Feel
The 2921 M-Steel Regular Slinky strings are precision engineered with gauges of .010, .013, .017, .026, .036, and .046. This combination produces evenly balanced tension and an familiar playing feel for most electric guitars. The lighter top strings facilitate complex chords and leads, while the heavier bottom strings provide a solid low end foundation. Overall, these gauges translate into a versatile set of strings suitable for everything from rock and blues to metal and jazz.
Built to Perform and Last
Like all Ernie Ball strings, the 2921 M-Steel Regular Slinky strings are constructed using the finest materials and manufacturing techniques to ensure maximum performance, longevity, and reliability. The precisely tempered steel alloys and high-quality winding processes result in strings that stay in tune, maintain their tone, and avoid premature breakage gig after gig. For strings that can keep up with your playing, you can't go wrong with Ernie Ball.


Features
- Ultra high output guitar strings
- Constructed of Maraging Steel
- Super Cobalt alloy wrapped around a Maraging Steel hex core wire
- Provides maximum fatigue resistance
Reviews
3.8
30 Reviews
65%
of respondents would recommend this to a friend
Most Liked Positive Review
Decent Pair of Strings
These stings had a lot of hype surrounding them. Partly because of the aggressive advertising Ernie Ball has done for this product, and partly because they are Ernie Ball strings. What this does is it gives people very high expectations, especially the way that Ernie Ball has been putting these strings out. When these expectations are hardly met, people begin to feel disappointed which is fair. However, that doesn't mean that these string are horrible. I have been playing guitar for only about 5-6 years, so I'm no expert. I'm probably considered a novice compared to most guitarists that typically write reviews. I have used Ernie Ball guitar strings for most of my guitar playing years and I have to say that these strings aren't their best, but they are definitely far from their worst. It is nice that this product is a close relative to the Cobalt strings, which are my personal favorite. It does have that going for it. However, the strings didn't show much improvement from the Cobalt. In fact I would say this is just a more expensive version of the Cobalt strings. I actually find the tone to be better from the Cobalt. We all seek different tones. I try to look for a tone that is nice and full but not very bright. That is another thing about the strings, the variety of gauges are different than what some people may be used to. At least in my case the regular slinkys seemed to be a little too light. Just like the cobalt strings, these strings seem very durable, although I have only had them for a few weeks. I am definitely going to give these strings another go around with different gauges just to see if it is neccessary to replace them from the Cobalt strings.
Most Liked Negative Review
Regular Slinky user - did not like the M-Steels at all...
Picked these up from GC after signing up for the String Club. The sales associate, being the good salesperson she is, up-sold me on the M-Steels. I really wanted to try the Coated Titanium RPS strings, but they don't have them in stores, and I was game to try out the M-Steels. I've been using the Regular Slinky's for quite some time and been quite happy with them. They aren't the longest lasting string, but if you take care of them (wipe them down after use), they sound and feel great and last a reasonably long time. These M-Steels sound and feel like DR strings, which are my go to strings for Gibson guitars as they work better for me for the shorter scale length. On my tele, the M-Steels feel awful. The wound strings have a gripiness and roughness to them and the tension is higher and they sound harsh in comparison to the regular Slinky's. They are a very different sounding and feeling string. Some people may like them, but for my purposes, they just aren't going to work and will be taken off and replaced with Regular Slinky's. I think they'd probably work for me on a Gibson, but I no longer own one. I still ordered some of the Coated Titanium RPS sets to try, but I have the feeling I'll be sticking with the Regular, and less expensive Slinky's.
- Practicing9
- Concerts4
- Back-Up3
- Great with Kahler Trem1
- Very clear chug tone1
- Not Consistent3
- Poor Tone Quality3
- Breaks Easy1
- Rusted in just 2 weeks1
- Damaged out of package1
- Experienced12
- Novice3
- Professional Musician1
- Good Tone13
- Well Built / Quality8
- Consistent6
- Long Life6
- Louder is better1
Reviewed by 30 customers
Killer tone!
Verified Buyer
submitted8 months ago
byAlan
fromTampa, Florida
Submitted as part of a sweepstakes
One of my favorite strings to date! Killer output and tone !! They have lasted me months. #sweepstakes
I will never buy these strings again
Verified Buyer
submitteda year ago
byStephen
fromCollinsville IL
Submitted as part of a sweepstakes
I bought these strings for the new Gibson sg silver burst I just bought a little less than a month ago from the guitar center in Fairview heights Illinois. They are not the usual slinkys I purchase, but they were on sale so I decided to give them a try. They are absolute trash. I will never buy this type again.
I would not buy these strings again
Verified Buyer
submitteda year ago
byStephen
fromCollinsville IL
Submitted as part of a sweepstakes
I put these things n my guitar and they are complete trash. They have a strange feel with very scratchy and overly chimey like tone. I wouldn't recommend these strings to anyone for any reason. They were on sale so I thought I would try them out. Well... That turned out to be a mistake.
GReat product
Verified Buyer
submitted2 years ago
byKerry
frombellingham wa 98229
Submitted as part of a sweepstakes
Great sounding strings. The best ever
I will be back next time I need strings.
submitted5 years ago
byDoug N.
fromspokane wa.
has the tone I was looking for and plays easy also.
yes
submitted5 years ago
byomar
fromPuerto Rico
Good product
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