Doepfer A-101-1 Vactrol Steiner Filter

Marsoni

M251S

$149.50

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

Doepfer A-101-1 Vactrol Steiner FilterThe module A 101 1 is a special multimode filter based on an idea by Nyle A. Steiner from 1974. The design is based on the standard single feedback (non inverting) filter standard circuit, where the different filter types are created by injecting the audio signal at different points on the circuit. Therefore, this filter has its own input for the low pass (LP), bandpass (BP) and high pass (HP)(!) and a common output, where all three input signals

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I've got probably 10 of these, now. The squeaker fails pretty quickly. But our dog still likes them, just not as much as when they squeak. I'm tossing these a good 75 yards and farther. The Chuckit glowballs make sounds through their holes so no separate squeakers there. Dog really likes those glowballs.

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Reviewed in the United States on March 26, 2026

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MRSWST

Cuba, US

★★★★★ 4

Great quality but the squeaker doesn't last long - still a good value

Size: Medium, Style: Squeaker

I have golden retrievers who never get tired of playing balls. These are VERY durable. No seams to split. They tend to chew as they bring the balls back, so the squeaker doesn't last long. Would highly recommend these. I have them on auto-delivery!

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Reviewed in the United States on December 15, 2025

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Natalie Oakley

Battle Creek, US

★★★★★ 5

Highly recommend

Size: Medium, Style: Squeaker

My dog loves these! They are now his absolute favorite! The squeaker lasts a lot longer than most. The rubber isn’t hard on his teeth and he likes how squishy they are and continues to play with it long after the squeaker dies. Highly recommend and will be buying more

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Reviewed in the United States on May 5, 2026

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Mr. Christopher B. Kende

Bozeman, US

★★★★★ 5

Great fetch toy.

Size: Medium, Style: Squeaker

My dog loves these balls. They are a bit softer than the normal ones and bounce well. The squeaker is not too loud but definitely makes the ball more interesting. I highly recommend these.

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Reviewed in the United States on May 28, 2026

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Verucat

Massapequa, US

★★★★★ 5

Yes!

Size: Medium

Durable. Squeak doesn't last forever with my aggressive chewers but crinkle does. Best balls.

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Reviewed in the United States on September 28, 2025