Manual

allowing you to set the pre-delay time more precisely. Eos’s pre-delay has a range of zero to 300msec, or 0.3
seconds.
Size
The SIZE control varies the apparent size of the simulated acoustic space or the simulated metal plate. As will
be evident when you listen to it, rotating the SIZE knob changes the “bigness” of the reverberated sound. The
range of this control is 1-60 meters, although this is a somewhat arbitrary scale.
You can adjust the size in either of two ways. First, you can click and drag vertically on the oval on the right in
the graphic display. As you drag upwards, the size becomes larger and the oval becomes bigger. Second, you
can click and drag vertically on the displayed numeric value itself. Drag upwards to increase the size, drag
downwards to decrease it. If you click to the right of the decimal point the value changes more slowly,
allowing you to set the size more precisely.
Decay
The DECAY parameter controls how long it takes for the reverberated sound to fade out. This control has the
greatest influence on the overall sound of the effect. The range of this control is 0.1 to 10 seconds, which is
approximately the amount of time that it takes the reverb sound generated by a full-volume signal to fade to
silence. The actual amount of time it takes the signal to fade out is also affected by the reverb type, the SIZE
control, and the frequency multiplier controls (described below), so the numeric value of decay should be
considered a relative value.
Long reverb times are associated with large acoustic spaces, e.g., a large concert hall has a longer reverb
time than your bathroom. If you’re striving for a realistic reverberation effect you will not want to combine a
long DECAY setting with a small SIZE setting. On the other hand, don’t let the pursuit of realism discourage
you from combining extreme parameter settings to create unusual effects.
Type
Eos contains three different reverberation types: Plate One, Plate Two, and Superhall. Click on
the names at the right of Eos’s window to choose the different types. Each type has its own
sonic characteristics and hence different uses.
Plate One is inspired by the digital plate emulations of the 1970's, but with far more echo and
density. This reverb type adds the inputs together to a mono signal and creates an artificial
stereo output. Plate One has a natural decay at all settings of Decay and Size, and can be used