Shop Now, Pay Later with Affirm. Learn More

Mutable Instruments
Ears External Input - 4HP

Be the first to review this product

Item: N13-6621

Availability: In stock

Ears External Input - 4HP

Mutable Music Things Ears

Ears, a collaboration from Mutable Instruments and Music Thing Modular, is a novel way to get tactile noise and gate outputs into your Eurorack system. It has a contact microphone attached to the panel, which can be scraped, tapped, rubbed, hit, or bumped for a wide variety of output noises and signals. It also has an external input, with 40dB of gain, able to bring anything up to modular level. Following the external input or the noises generated from touching it is an envelope follower, which outputs CV based on the volume of the signal. Pairs great with resonators like Rings and Elements!

Ears Features

  • Audio amplifier with 1M input impedance, up to 40dB of gain.
  • Envelope follower with 3 preset attack and release times (adjustable by jumper).
  • Gate detector with 3 preset sensitivity levels (adjustable by jumper) and +8V gate output.
  • Three indicator LEDs: amplifier clipping (red), envelope follower level (white), gate detector activity (orange).

Ears Demo

Mutable Instruments Ears from Perfect Circuit Audio on Vimeo.

In this patch, the audio output of Ears is split with a stackable cable and patched into both Rings and Elements. The Gate output from Ears is plugged into Frames' CV input, which is set to Sequencer mode. Frames is working double duty as a 2CH mixer, and a 2CH Sequencer. The Audio outputs of Rings and Elements are patched into Channels 3 and 4 in Frames, with each of their frame settings set to full volume. The mix out of Frames is our main audio out. Channels 1 and 2 of Frames have fluctuating CV levels, which are patched into the 1v/oct inputs on both Rings and Elements. 

Questions on Ears External Input - 4HP

No questions asked yet

Ask Your Own Question


  • Eurorack Module
  • Width: 4HP
  • Depth: Skiff Friendly
  • Current Draw: 5mA@+/-12v

Customer Reviews

Write Your Own Review

You're reviewing: Ears External Input - 4HP

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars