Doepfer A-199 Spring Reverb Module VE
Doepfer A-199 Spring Reverb Module Vintage Edition, electronically simulated by means of 3 spiral springs. Spring reverb systems have a very characteristic sound that is based on the (insufficient) mechanical properties of the springs like signal delays, audio resonances, limited frequency range, acoustic feedback behaviour, sensitivity to mechanical shocks and others. The 3-spring system used in the A-199 ensures a 'dense' reverb due to the different properties of the three springs. The A-199 implies some special features that are not self-evident for spring reverb units (the reverb signal can be fed back to the input using the feedback control). Even self-oscillation of the springs similar to the self-oscillation of filters is possible. The feedback loop can be connected to external modules (VCA, VCF, phaser, frequency shifter, vocoder, distortion/waveshaper, ring modulator and others). In this case the reverb output of the A-199 is connected to the input of the external module(s) and the output of the external module(s) is fed back to the external feedback input socket on the A-199. This socket contains a switch that interrupts the internal feedback loop as soon as a plug is inserted. Another feature is the emphasis control. This enables the adjustment of the accentuation of mid frequencies (around 2kHz).