OpSix Altered FM Synthesizer

Marsoni

M251S

$375.00

Get it in 3 business days with 1 day shipping. Friday, May 29

OpSix Altered FM SynthesizerRethink everything you know about FM synthesis. The opsix represents a new and expansive reimagination of classic digital synthesis. Much like Korg did when bringing wave sequencing back in a more powerful, more musical, and more immediately accessible way with wavestate, so was the approach to FM sound generation of the opsix, resulting in another incredibly flexible and unique synth. The opsix is an altered six operator FM synthesizer. With its

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Almost the perfect shoe for anything if you get the right size. I sent back 1st pair, no reviews on new model so found out hard way sizing is a bit off. Definitely size down a half size! They are long! Also note that if you're feet are at all wide, go for wide version. I have normal width(4 1/4 at widest point) feet and its snug on me. My only real complaint about these shoes is they could use about 10% more arch. My arch is medium height. They're so comfortable I didn't even notice until the end of a long work day. Could also just be due to my current (194) weight. Color/design is fantastic, though I would like to see more color options like previous models had. Hopefully they just haven't launched full line-up yet, since I purchased in first month of availability. Also, these are seriously better than my expensive Kayano lite 2's.

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Reviewed in the United States on March 19, 2026

Verified Purchase

Stormy

Waukegan, US

★★★★★ 5

Love these

Size: 1 Big Kid, Color: Pearly Pink

Such a cute jelly shoe, comfortable fit, and doesn't make your feet smell. Great quality jelly shoe

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Reviewed in the United States on June 8, 2025

Verified Purchase

L.Klein

Dallas, US

★★★★★ 5

Cute but size up

Size: 5 Toddler, Color: Beige Silver Glitter, Size: 5 Toddler, Color: Beige Silver Glitter

These are super cute, made well, feel much more solid than any other jellies we’ve purchased but size up. These are the size 5 Melissa jellies against the size 5 Sophia Grainge Mary Jane’s. These Melissa wouldn’t go on her foot, the SG Mary Jane was huge.

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Reviewed in the United States on May 14, 2025