Dapf - Dual All Pass Filter

Marsoni

M251S

$117.50

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

Dapf - Dual All Pass FilterIntroducing dpf, the first dedicated effects processor in the Instru product line. The Instru dpf is a set of two analogue all pass filters. You might be asking yourself, What is the point of a filter that passes everything? All pass filters dont actually attenuate frequency amplitudes directly, but rather alter the phase relationship of frequencies across the spectrum. All pass filter stages appear in the vast majority of voltage controlled filter

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I don't fill the hard to open spots yet, he's just figuring it out. It does keep his attention. It's a little small for a big dog (100lb Lab), prob better for a small dog. He has a hard time with the little trays. Definitely worth trying out. I wanted an inexpensive puzzle toy to try first, in case he didn't like it or couldn't figure it out.

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Reviewed in the United States on June 1, 2025

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calvin lemieux

Louisville, US

★★★★★ 5

Fun activity for my pup

Color: Navy Blue

My 6 month old Labrador dog has so much fun with this! When he sees me getting it ready he gets excited. It’s super easy to use and clean! The price is the best! Quality is great. No noise and fun for my dog. The red

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Reviewed in the United States on February 20, 2026

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kaydence

Draper, US

★★★★★ 5

Great Puzzle, My Dog Loves It!

Color: Navy Blue

It’s perfect! My dog loves it and i’m very satisfied with this purchase. The outside of the box did come sticky, which was kind of weird. Overall it’s great!

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Reviewed in the United States on May 19, 2026

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Skillet Black

Chelsea, US

★★★★★ 3

The outer part of puzzle is awesome! The inner...not so much.

Color: Navy Blue, Color: Navy Blue

My doggo Josie is a pretty smart dog. She can give you the most pitiful look (like in the pic) where you're giving her most of your lunch. She can hide your socks in another dimension! She can sit, shake and yes when Alexa plays "Turn around" by Bonnie Tyler...she will do it. I like to challenge her with a puzzle. She figured out the outter part of the puzzle within minutes but I was disappointed she couldn't figure out the inner part of the puzzle. Then I figured out why. The inside puzzle is very hard to push around. She gets frustrated that it won't open or move around very well. I let her do the outer puzzle for treats but I no longer put treats in the inner part. I want her to be entertained...not frustrated. I'll keep it for a bit and then pass it on to a dog shelter.

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Reviewed in the United States on June 8, 2025

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Laura

Phoenix, US

★★★★★ 5

Great fun

Color: Navy Blue

Great fun to watch my dog learn how to get his treats. Slows him down so they last longer. He’s almost ready for level 3.

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Reviewed in the United States on February 4, 2026