Elma A47 Audio Attenuator Series

Construction information for DIY projects, including the MS Mid Side Matrix, Elliptic Equalizer, Mastering Console, Phono Transfer System, Insert Switcher and the Dual Class-A Amplifier. You can post your baby pictures here.
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mediatechnology
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Elma A47 Audio Attenuator Series

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A47 Series Audio Attenuator

The A47 audio switch series incorporates a PCB based switch contact system that is specifically designed to meet audiophile requirements for superb sonic performance.

These series attenuators provide 47 positions and are available from 1 to 8 channels. Switch torques of 4 and 8 Ncm are standard, populated with low-noise, high precision SMT resistors (standard input impedances are 10k, 25k, 50k or 100k), or non-populated THT versions which can be populated by the customer.
http://www.elma.com/en/products/rotary- ... or-detail/

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