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Rotosound RS77LD Jazz Bass Monel Flatwound Strings

The Rotosound RS77LD Jazz Bass Monel flatwound strings have been handcrafted with pride for over 50 years using the highest-quality materials and a proprietary process. The Monel 400 alloy tape wound on a hex core produces a smooth feel and rich, vintage tone favored by famous bassists on countless iconic albums.
Legendary Flatwound Strings Made of Monel
The Monel 400 alloy tape used in these flatwound strings provides a warm, punchy tone with excellent sustain and clarity. Monel contains five times more nickel than stainless steel, resulting in a fuller midrange and more prominent fundamentals. Combined with the flatwound construction, these strings produce a smooth feel and thumpy tone perfect for any genre from jazz to rock.
Secretive Manufacturing Process for Unmatched Longevity
Rotosound has been handcrafting bass strings for over 50 years using a proprietary process to create unparalleled sound quality and longevity. The RS77LD Jazz Bass Monel flatwound strings are still made using equipment from the 1960s and high-quality materials to achieve a vintage tone modern strings can't replicate. These flatwounds can last for years when properly cared for, providing consistent tone and performance gig after gig.
Standard Gauge for Easy Transition from Roundwounds
With a standard 45-105 gauge, these flatwound strings provide a familiar feel for bassists transitioning from roundwound strings. The lighter gauge on the E and A strings makes it easy to switch between string types, while the heavier D and G strings still provide a solid fundamental. This balanced set works well for most playing styles and music genres.


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4.56
34 Reviews
81%
of respondents would recommend this to a friend
Most Liked Positive Review
Greatest Strings Ever
I have played with Rotosound roundwounds for a while, and then decided to try out these flatwounds. These are by far the best sounding strings I have ever played. They play extremely smoothly and don't make any scratchy or squeeky noises if you run finger back and forth on the strings with your amp on. Tapping sounds so much better with these strings. The only thing is theres just a little more tension than roundwounds but the sound makes up for it. Harmonics sound great. I recomend these strings to any bass player for any type of music from jazz to metal (yes metal, steve harris from iron maiden uses flatwounds). I won't use any other string besides these!
Most Liked Negative Review
Stiff, Clanky and thin sounding
I needed a set of flat wounds immediately and didn't have time to wait for strings to be shipped, and this and the SIT flats was what was available in my Guitarcenter. These strings are very stiff feeling, and a metallic, clanky sound with a lack of low midrange punch and presence. I didn't go for the SIT's because they boast a 'cobalt' design, and there is noting authentically '60s or 70's about cobalt... I recommend the GHS stainless steel flatwounds instead, they have a comfortable loose feel, plenty of midrange punch and are also well made. And can be found cheaper!
- Practicing13
- Concerts11
- Back-Up7
- weekend warrior1
- recording studio1
- Poor Tone Quality3
- Not Consistent2
- Inconsistent Binding1
- Stiff feel1
- Thin Clanky sound1
- Experienced13
- Novice4
- Professional Musician4
- Good Tone18
- Consistent10
- Well Built / Quality10
- Long Life6
- Smooth1
Reviewed by 34 customers
Sounds great
submitted3 days ago
byFrank
fromNorth Charlotte, NC
Submitted as part of a sweepstakes
These sound great. They started out bright and now after a couple of weeks the have that worn in soulful sound. No need to blow a bunch of moneys on LaBella unless you just have to have the LaBella sound.
These are great strings if you're used to double bass.
submitted2 months ago
byPaul
fromSeattle, WA
Submitted as part of a sweepstakes
If you're coming from the double bass and want to try bass guitar, these will feel more familiar to you. They're described by many as "a little too stiff", which means you are less likely to over-play them with your caveman double bass strength.
Not what I was expecting but very pleased.
submitted4 months ago
byJosh
fromClackamas OR
I was shopping for new strings for my fretless. I was getting too much "mwah" from other strings and I wanted to try stiffer strings to reduce that. I read on several message boards that these strings feel stiffer than other brands so I decided to give them a try. These are different from other flats. Yes they are stiff and I was able to reduce the ammount of "mwah" from my fretless but they are very bright almost like a broken in set of rounds and they are not as smooth as other flats almost like half rounds or pressure wound. Very little finger squeak even with being less smooth. The monel has a certain timbre that reminds me of pure nickel strings that is different from stainless and I find it refreshing. If you are looking for something a little different from other flats I would definitely reccomend giving these a try.
Maybe
submitted8 months ago
byLynn
fromCentral Iowa
I just picked up a set of the 45-105 flat wound 77s to put on my new Schecter SLS bass. Overall, I like the tone these strings generate paired with the instrument. They're not quite as polished as the Fender 50s I played on my previous J bass, but they still emit a lot of character while smoothing out the fretting noise. My only complaint is the silk binding; particularly on the E string. After feeding the string through the body of the bass, I noticed that the silk wrap was extending over the nut and ever-so-slightly beyond. This wouldn't do as it lifted the string higher in the slot and above the fretboard, so I ended up trimming the wrap back with a razor blade. I have a feeling that the wrap will start unwinding in time, so we'll have to see how long they hold up.
Warm tone, less fret noise
Verified Buyer
submitted3 years ago
byEarnie
fromLos Angeles, CA
Submitted as part of a sweepstakes
After recording a gig I heard a lot of fret noise from my fender jazz bass with round wound strings. I've used flat wound strings before on my other basses so I knew I could eliminate some of that noise. I was concerned that I might lose the ability to slap but I'd rather not hear what I was getting. After putting on these strings, making neck and string height adjustments, these strings did what I wanted. I also found that I was still able to do some slapping on these strings. I do like the tone of these strings. They are not as warm as others have been. The strings are a higher tension than the round wounds so they will feel stiffer and did require neck adjustments.
Not my cup tea.
Verified Buyer
submitted4 years ago
bytim
fromBelleville, il
Let me say, I have nothing against rotosound strings, but these, wow. I've purchased on three occasions over the years. The first two were so dead and lifeless, they both came off within the day, not the pleasant thud of an aged string, but just well, dead. The last set had more life, but the tone was so off-putting I came close to returning a new bass I'd purchased, thinking it was the instrument, thank goodness I put old set of another brand and life was good again. Maybe, it's just me, I don't know, but I can't imagine buying them again, well until I forget about it of course.
Have a question about this product? Our expert Gear Advisers have the answers.
submitted6 years ago
asked byLucas
fromWahiawa, Hawaii
Will these strings work on an Ibanez bass?
These strings would work on an Ibanez bass.

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