RO 4-Way Active Tone-Control PUBLIC

Richter Original 4-Way Active Tone-Control for Guitar

Richter Original 4-way active tone-control circuit for 6-string electric guitar. Controls Include: Drive, Center, Bass, Mid, Treble, and Volume. Note: The Center Circuit has a greater impact on tone and gain than the Tone-Stack. Center > 50% boosts treble and gain, but Center < 50% cuts treble and gain. The Bass, Mid, and Treble controls adjustment ranges are +-3 dBV each. Frequency Range 40 Hz to 12 kHz with all controls at 50%, or 25 Hz to 50 kHz with all controls at 100%. Maximum Gain = +20 dBV @ 400 Hz with all controls at 50%, or +41.6 dBV @ 1 kHz with Center @ 50% but all other controls at 100%, or +48 dBV @ 630 Hz with all controls at 100%. Circuit can be for stomp-box or rackmount projects. The batteries can be replaced by a regulated dual-polarity DC supply providing +-9VDC or +-12VDC or +-15VDC @ >= 30 mA of current. And though simulator verified, treat the circuit as experimental. Breadboard test before committing to a soldered build. House project in a grounded metal enclosure to prevent EMF interference.