User Manual

SA248 Spectrum Intelligent Filter User Guide 10
Controls
INPUT/SENSE Knob
A dual function knob that adjusts the level of the INPUT signal going to the processor as well as the
SENSITIVITY of the envelope filter.
• INPUT (the Primary (Default) Parameter): Adjusts the volume level of the input signal. Given
the reactive nature of the Spectrum’s envelope followers and the varying output levels of
different instruments and their passive or active pickups, it is important to set the level of
input signal. For hotter, active pickups it is probably best to turn the INPUT knob down. For
traditional passive pickups it will help to turn the INPUT level up. To set your Spectrum to the
best possible Input level follow the INPUT CALIBRATION PROCESS below.
o INPUT CALIBRATION PROCESS
1. Turn the INPUT knob all the way down.
2. Continuously pluck your instrument at your average plucking velocity.
3. Slowly turn up the INPUT knob up until the center LED starts flashing red.
This flashing indicates that you have reached the optimum INPUT level.
Leave the knob where it is – the process is complete.
• SENSITIVITY (the Alternate Parameter): Adjusts how reactive the envelope filter is to the
incoming signal. If you like to play hard, but still want a smoother, more relaxed envelope