5-Band Bench Tone-Control PUBLIC

5-Band Active "Bench" Type Tone-Control Circuit.

5-band active "Bench" type tone-control circuit for electric guitar. Controls include; Input Level, Drive, 5 tone pots, and Volume. Frequency band centers: 10 kHz, 3.3 kHz, 1 kHz, 500 Hz, and 250 Hz. This is an expensive tone-control circuit due to the cost of the inductors but should have exceptional tonality because of their resonant characteristics. [Parts available from www.newark.com.] Response tailored to 6-string guitar in standard tuning; maximum range if from 80 Hz to 18 kHz. Suitable for stomp-box or rack-mount applications. Batteries can be replaced by a regulated dual-polarity +-9V DC power-supply providing 50 to 100 mA of available current. Though verified, treat the circuit as experimental. Breadboard test before committing to soldered build. Tone control circuit based on 3-band Bench circuit found at https://tonestack.yuriturov.com. Total circuit gains per frequency with all pots at middle positions, and using a 1 V p-p 1 kHz input signal, are; -10dBV @ 40Hz, 0dBV @ 63Hz, +4.5dBV @ 82Hz, +9dBV @ 100Hz, +18dBV @ 400Hz, +15dBV @ 1kHz, +10dBV @ 4kHz, +5.3dBV @ 10kHz, 0dBV @ 16kHz, and -3dBV @ 20kHz. Absolute maximum total circuit gain = +36dBV @ 400Hz. Thus, this circuit emphasizes mids between 82Hz and 10kHz. Ideal for 6-string electric guitar.