The latest DSP Phase pedal offer a lot of classical phase effect which includes Rise and Fall phase.

Input impedance 1 MΩ
Output impedance 1K ohm
Recommended Load Impedance 10KΩor greater
Residual Noise -90dBu(1HF-A, Typ.)
Power Supply DC 9V,Dry battery (6F22/9V)AC adaptor
Controls Pedal Switch, Mode Rate, Depth, Res
Indicator Check Indicator (Serves
also as battery check indicator)
Jacks Input
Output
AC Adaptor
Current Draw 55mA(DC9V)
Dimensions 72x128x60mm
Weight 415g (no battery)