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High/Low Shelf

High/Low Shelf


The High/Low Shelf is an original design, transistor-based EQ and Boost circuit. The Low control boosts everything below 900Hz, the High controls everything above. Both Frequency bands boost/cut 16dB.  Volume output can boost up to 20dB.

This circuit works as all of the following: Treble booster, bass booster, volume booster, articulation tightener, brightness reducer, etc.


True bypass, 15mA current draw, 9-18Volt operation

    Color: Black
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