Portal Tabletop Effects in its filters and amplifiers

in its filters and amplifiers

We bought this bass in the mid-1990's

Some frequencies are canceled out and some are reinforced creating peaks and troughs in the frequency spectrum

frequency and ADSR (positive or negative)

Portal Tabletop Effects in its filters and amplifiersPORTAL is a wave wrapping harmonic distortion. Similar to a wave folder, PORTAL multiplies the harmonics of a signal going through it. Unlike a wave folder once the input has hit the threshold voltage the output will jump to zero instead of folding back on itself, creating a sharp transition almost like the wave has traveled through a portal. When fed with a triangle or sawtooth this can create an effect similar to oscillator sync, but without the