Keeley HYDRA User Manual

4
PRIMARY CONTROLS
1
2
3
4
5
1
RATE - Sets the rate of the Tremolo. Turn left for
slower speeds, right for faster.
2
DEPTH - Sets the maximum amount of volume
reduction for the Tremolo.
4
COLOR - Sets the tone of the Reverb. Pressing this
control grants access to alternative settings and
presets.
5
MIXER - Sets the level of the Reverb. Turn left for a
lower Reverb volume, right for higher Reverb volume.
6
TOGGLE SWITCH - Selects between Spring, Plate
and Room Reverb types.
3
DWELL - Sets the length of the Reverb trail. Turn left
for less, right for more.
6

Keeley HYDRA Specifications

General

Stereo Input/Output	Yes
Expression Pedal Input	Yes
Power Supply	9V DC, center negative
Bypass	True Bypass
Weight	1 lb
Type	Stereo Reverb and Tremolo
Reverb Modes	Spring, Plate
Tremolo Modes	Harmonic, Vibrato, Sine
Presets	3