Doepfer A-101-1V Vactrol Steiner Filter Vintage

Doepfer A-101-1V Vactrol Steiner Filter Vintage

Marsoni

M251S

$164.50

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

Doepfer A-101-1V Vactrol Steiner Filter VintageThe 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 installed this on my 2021 4Runner with the adhesive provided and no drilling. It has been a few months and it’s still solid. I live in Hawaii and the temps in the car have reached over 100* F pretty consistently and the adhesive has held up very well. There are a lot of attachment points for whatever you want to use it for. I only wish they sold the magnetic mount that it comes with so everything can match up. I use it for my phone and baby monitor. I would purchase this again.

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Reviewed in the United States on April 28, 2026