The iStingor Super Lead SL-1 is a high gain distortion pedal from iStingor. It sits in the distortion category alongside its sibling, the iStingor Metal Shredder MS-1, and is aimed at players who want a British-style high gain voice rather than a fully modern metal voicing1.
What it does
Guitar Pedal X's Stefan Karlsson, who reviewed the pedal in July 2026, described its character as "still somewhat modern - but more kind of adjacent to Modded Plexi and JCM-800 territory"1. In practical terms, that places the SL-1 in the camp of pedals that chase the sound of a cranked, modified British lead amplifier: aggressive, saturated gain with a voicing rooted in classic high gain rock, rather than the tighter, more scooped character of a modern metal pedal.
Karlsson reviewed the SL-1 alongside the Metal Shredder MS-1 and judged both pedals in the same class. Of the pair, he wrote that "this one and its SL-1 sibling that I will be reviewing next - are both superb - A-tier for sure"1. On gain, he placed the SL-1 close to its sibling, saying it is "not too far behind the MS-1 in gain overall"1. He also noted that both his "recently landed Metal Shredder MS-1 and Super Lead SL-1 pedals - are currently awaiting a restock on the Amazon Store"1.
Availability
As of the 2 July 2026 review, Karlsson noted that his "recently landed Metal Shredder MS-1 and Super Lead SL-1 pedals" had arrived for review1.
Questions
Is the iStingor Super Lead SL-1 available?
As of July 2026, Guitar Pedal X reported that the SL-1, along with the Metal Shredder MS-1, was awaiting a restock on iStingor's Amazon Store. Availability may have changed since then, so the current status of the pedal is best confirmed with the maker or its store listing.
How does the SL-1 compare to the iStingor Metal Shredder MS-1?
Guitar Pedal X's Stefan Karlsson reviewed the two pedals together and called both superb and A-tier. He described the SL-1's gain character as somewhat modern but leaning toward modded Plexi and JCM-800 territory, and said the SL-1 is not too far behind the MS-1 in overall gain.
Sources (1)
- Guitar Pedal X, Guitar Pedal X, 2026-07-02
