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Stepped attenuators – PS Audio
https://www.psaudio.com/pauls-posts/stepped-attenuators/
For many years almost all broadcast audio mixing boards used stepped attenuators for reasons of reliability. It was not until the 1970s that conductive plastic resistive tracks became durable enough for constant operation (with, say, 4 audio sources, 2-3 minute singles and 30-60 second commercials, each pot might get turned up & down 20 times an hour …
audio stepped attenuator, precision audio volume control ...
https://www.marchandelec.com/att.html
AT46 46 position stepped attenuator. Motor control, Infra-red remote control option. Available mono , stereo or multideck. Standard 2.5 dB/step, 10K resistance or without resistors. Custom stepsizes and profiles (like 1dB/step or linear) Custom resistances . All 1% metal film resistors . Optional Holco (Vishay) resistors or others
Audio Volume Control Attenuator with IR Control
http://electronics-diy.com/audio-volume-control-attenuator-with-ir-control.php
The circuit provides both audio volume and input channel selection. A stepwise volume control is implemented with a set of small relays and resistors. In a high-end audio system, a noticable sound improvement over potentiomeneters can be obtained, also over 'audio grade' potentiometers. Clearly, the IR remote control provides convenience over solutions with …
Circuit-Zone.com - Electronic Projects, Electronic ...
http://circuit-zone.com/index.php?cat=Audio_Attenuators
Compact and simple circuit with just 6 tiny relays implement a 64-step logarithmic stereo attenuator. The 64 steps of 1.0dB together span a 63dB audio attenuation range. By avoiding any active electronics, a very clean and open …
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