Electro Harmonix XO Octave Multiplexer Analog Sub-Octave Generator

Electro Harmonix XO Octave Multiplexer Analog Sub-Octave Generator

Marsoni

M251S

$84.50

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

Electro Harmonix XO Octave Multiplexer Analog Sub-Octave GeneratorGet down! Generates deep, phat bass tones one octave below the notes you play. Two separate smoothing filters enable you to tailor your sub octave signal to the exact bass sound you desire, separating the Octave Multiplexer from other octave devices. Run your vocals through it and sound just like Ike Turner. This is a monophonic device and works only on single notes. True bypass Create very smooth and natural bass tones one octave below your played

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We offer a 30-day return/exchange service after receiving.
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I was so skeptical about whether these would stay on my feet all day without sliding down into my shoe - I’ve tried so many socks in the past with the silicone strip on the heel which failed. I’ve owned these for a couple months now and they have never slipped down - they stay put all day! I love the variety of colors to choose from, and the value per pack is great since six pairs come per pack (I thought it was only three when I first purchased and was pleasantly surprised by the additional pairs). They also have perfect thickness - not too warm to wear during the summer months with sneakers; I live in a tropical climate, though, so I’m not sure how they will do in cooler climates. I’ve washed each pair once or twice and the color and quality of the silicone has stayed so far (knock on wood). Overall: high recommend based on my experience so far!

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Reviewed in the United States on September 13, 2025

Verified Purchase

Maggie Vega

Fort Morgan, US

★★★★★ 5

Great fit!

Size: Medium, Color: (403) Washed Navy / Washed Navy / Blue Smoke

Great quality!

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Reviewed in the United States on May 15, 2026

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Kira Stewart

Natrona Heights, US

★★★★★ 5

My favorite socks

Size: Medium, Color: (659) Fuchsia Dusk / Fuchsia Dusk / Tourmaline Pink

Very comfortable. True to size. Moisture wicking

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Reviewed in the United States on April 25, 2026

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Theresa

Omaha, US

★★★★★ 4

No show but stays on

Size: Medium, Color: (014) Halo Gray / Halo Gray / Castlerock

I wear these socks daily. They truly don’t show with my workout shoes or with hey dudes. But the best thing about them is that they actually stay on your foot. I work out hard and I don’t ever have to pull them up. I do wish they were just a little bit thicker than they are, but they are definitely a product I will buy again.

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Reviewed in the United States on May 22, 2026

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Lyssetic

Waukegan, US

★★★★★ 5

Favorite Socks Ever

Size: Medium, Color: Black/Assorted, Size: Medium, Color: Black/Assorted

I absolutely love these socks, they compress in the middle which is my favorite thing about them! Keeps them from slipping off my feet and also adds support, love love love how they feel and how long they last! This is my second pack that I’ve purchased, I had the multi colored ones before and they’ve lasted me two years before finally starting to wear out and fade and get holes. Definitely going to be routinely buying these every year. Good to wear with my work out shoes...winter boots, Nike sandals, and my everyday adidas sneakers. These are so worth it!

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Reviewed in the United States on May 28, 2019