Rossum Electro-Music Panharmonium Mutating Spectral Resynthesizer - Black

Rossum Electro-Music Panharmonium Mutating Spectral Resynthesizer - Black

Marsoni

M251S

$549.50

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

Rossum Electro-Music Panharmonium Mutating Spectral Resynthesizer - BlackThe Rossum Electro Panharmonium is a 26HP Mutating Spectral Resynthesiser, designed by Bob Bliss. The Panharmonium is a a module that allows you to analyse the spectral content of any audio signal and use that analysis to drive a bank of 1 to 33 oscillators. Depending on the various control settings, Panharmonium can accurately reproduce the input spectrum in real time or modify it in a all manner of interesting ways. More info Video: https: youtu. be

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Only have had these for 24 hours but also purchased a couple other chew toys from Amazon as well and all were delivered at the same time. Point being that my #60 silver lab was trading off between all of them and after 2 hours only you can see little shards of plastic sticking up from these chews. Not sure how long these will last before having to throw them away but they are pretty nice and feel heavy and durable. So many of these companies claim they are “indestructible” but all 4 I purchased have little plastic pieces sticking up already. Even my #14 Shih Tzu enjoyed trying to chew these and it kept her busy even though they are for larger dogs.

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Reviewed in the United States on December 31, 2025

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Jellyshodi

West Palm Beach, US

★★★★★ 5

Golden approved

My golden retriever’s really enjoy these chew toys. They are pretty durable and last awhile. They are hard plastic but they do get rough edges after they’ve been chewed in for awhile

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Reviewed in the United States on May 28, 2026

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Steven S.

Phoenix, US

★★★★★ 5

Perfect for chewy doggos

My dogs loved them! Keeps them entertained for a few mins. You can also fill with PB and freeze. Or yogurt and freeze. Great for the doggos

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Reviewed in the United States on May 24, 2026

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Erika