SeM20 Filter Single Channel

Marsoni

M251S

$165.00

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

SeM20 Filter Single ChannelThe SeM20 is a 2 pole state variable filter loosely based on the Oberheim SEM's filter with the resonance section of the MS20 grafted on for extra bit of grit. It won't self oscillate, usually, but with an input, or the High Pass out plugged into the Input, it will howl. The Input section is set up much like the input of the OSCar, when the input is at 5 it's full volume. Beyond 5 the filter will begin to overdrive and distort.

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Great toothpaste! I've been incorporating more nano hydroxyapatite into my oral care routine, and I was pleased to find this with a verifiable 10% concentration. It's pricey, but worth it in my opinion. It only takes a tiny amount to do the job, which is actually surprising considering it doesn't foam. I'm prone to canker sores, and this prevents them. The taste is fresh and not too overpowering. It's great if you have sensitivity, and definitely reduces or eliminates it. I had professional whitening done, and zero sensitivity because of this. It's great for preventing stains on your teeth (huge coffee/tea drinker), too! And, if you have gum issues, this will help tremendously. My dentist was very pleased at my appointment this past week. Will continue to use, and recommend to others.

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Reviewed in the United States on April 11, 2026

Verified Purchase

L. Ma

Bozeman, US

★★★★★ 5

Holistic Dentist Recommended & We’ve Seen a Big Difference

Flavor Name: Mint, Size: 3.4 Ounce (Pack of 1)

Our holistic dentist recommended Dr. Jen’s fluoride-free toothpaste with 10% nano-hydroxyapatite after my daughter had struggled with quite a few cavities. We wanted something that would help strengthen and support her enamel without fluoride, and this was the product she specifically suggested. One thing I really like is that it’s a non-rinse formula. After brushing, she just spits and doesn’t rinse, so the nano-hydroxyapatite can stay on the teeth longer to help support enamel. That gives me extra peace of mind knowing it’s continuing to work even after brushing. The texture is smooth and not gritty, and the flavor is mild enough that she actually uses it without complaining. Since switching, her teeth look clean and healthy, and we feel much better about her cavity prevention routine. The only downside is the price — it’s definitely very expensive and one of the most expensive toothpastes out there. But for us, given the dentist recommendation and the peace of mind, it’s been worth it.

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Reviewed in the United States on February 19, 2026

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Guy Jones

Boise, US

★★★★★ 5

Hopefully it strengthens the Tooth Enamel!

Flavor Name: Mint, Size: 3.4 Ounce (Pack of 1)

Excellent Product: I've been using its for a couple months and the flavor is fantastic. Ideally, you don't want to rinse it off your teeth so that the Active HA coats them and stays on for a while (especially at night). I've been recommending it for my patients in my office, and will see if it stops some of the smaller cavities. I'm not a paid Sponsor but love the product

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Reviewed in the United States on May 10, 2026

Verified Purchase

Theresa durst

Draper, US

★★★★★ 5

Does what it claims.

Flavor Name: Mint, Size: 3.4 Ounce (Pack of 1)

Love this toothpaste. Helps with my sensitive teeth and I’ve gotten comments about how white my teeth are. Being fluoride free big plus

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Reviewed in the United States on May 19, 2026