Doepfer A-199 Spring Reverb - Manual

doepfer System A - 100 Spring Reverb A-199
1
1. Introduction
Module A-199 is a spring reverb module that simula-
tes the reverb effect by means of 3 spiral springs. The
3-spring system
used in the A-199 ensures a "dense"
reverb because of 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 similiar to the self-oscillation of filters is avai-
lable. The feedback loop can lead even via external
modules like VCA, VCF, phaser, frequency shifter, vo-
coder, distortion/waveshaper, ring modulator and
others.
Another feature is the Emphasis control. This enables
the adjustment of the accentuation of middle frequen-
cies (around ~ 2kHz).
With the Mix control the relation between original and
reverb signal appearing at the mix output is adjusted.
Using all these features very extreme and unusual ef-
fects can be generated with the A-199.
Level
Level
Emphasis
ext.
Feedb.
In
A-199
SPRV
Mix
Reverb
Out
Mix
Out
Feedback
Pay attention to the power supply recommendation at
the end of this manual (page 6) if you are about to
plan an A-100 system that includes an A-199.