Mad Professor BJF Silver Spring Reverb (pcb)

Bjorn Juhl (BJFe) design

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Silver Spring Reverb (SSR) is a compact, easy to use digital/analog reverb with a pure analog direct signal path. It creates a natural sounding ambient reverb that will not get in the way of your original signal.

The SSR’s sound is exceptional with a clean signal but was specifically designed to work equally well with the tougher performance requirements of distorted tone. The SSR can be used before distortion, although it was primarily designed to go after. If you use the SSR before distortion, you may want to use a lower Reverb (Wet/Dry) setting.

TIME: This sets the decay time of reverb. Turn it clockwise for longer decay. At the full counterclockwise position, the decay is that of a small room. At the full clockwise position, the decay resembles the large hall sound of a plate reverb. Around the center setting the medium decay time is optimal for rhythmic chords and single notes.

TONE: This adjusts the bandwidth of the reverb signal. Turning clockwise results in a brighter reverb tone and counter-clockwise darker one. Fully counter-clockwise approximates the response of a typical spring reverb, clockwise a studio reverb.

REVERB: This adds reverb to dry signal. Reverb can be turned fully off if Reverb knob is turned fully CCW, and is loudest at fully clockwise.

TECHNICAL SPECIFICATION:

Power requirements: 6F22 9V battery or DC eliminator 2.1 mm plug center negative and positive sleeve.

Current consumption: 80mA at 9VDC

Supply Voltage Range: 6-9 VDC, 9V recommended.

Input impedance: 500k Ohm

Output impedance: 10k Ohm

True Bypass

Signal noise ratio: 90dB