Electro-Harmonix OCEANS 12, Quick Start Manual, Page: 23 / 40

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SPRING –
MODE: Selects between our new renowned Fender
®
6G15 emulation
(Mode 1) and the classic spring reverb algorithm from the Holy Grail
(Mode 2).
LENGTH : This knob selects spring length. The knob travel is divided
into thirds, with each third selecting successively longer springs as the
knob is turned clockwise. The middle third is standard length for both
the Fender
®
6G15 length and the original Holy Grail emulation.
PREAMP DRIVE : This knob controls a subtle amount of preamp drive
before the reverb circuit. More drive is applied as you turn clockwise.
Fully counterclockwise is no drive.
PLATE –
MODE: Plate type. Mode 1 is EHX’s original plate from the Holy Grail .
Mode 2 is a “dark plate”, a tonally warmer version of the original plate.
P.D. FBACK : This knob controls the Pre-delay Feedback: the amount
of signal that is sent from the output of the pre-delay block back to
the input of the pre-delay block. With a pre-delay time long enough
to hear discrete echoes, turning the P.D. FBACK knob clockwise will
cause the pre-delay block to produce multiple echoes from one note.
Each echo then goes into the reverb block producing multiple reverb
washes from one note.
SIZE : Scale the size of the emulated metal plate with this knob to
color the diffusion of the reverb tail. As you turn clockwise, the plate
size gets larger. (The original Holy Grail plate size is located at noon.)
REVERSE –
MODE: Mode 1 is the reverse-simulating effect found on the EHX
Oceans 11 and Cathedral, while Mode 2 is a reverse echo inspired by
the EHX Grand Canyon.
P.D. FBACK : This knob controls the Pre-delay Feedback: the amount
of signal that is sent from the output of the pre-delay block back to
the input of the pre-delay block. With a pre-delay time long enough
to hear discrete echoes, turning the P.D. FBACK knob clockwise will
cause the pre-delay block to produce multiple echoes from one note.
Each echo then goes into the reverb block producing multiple reverb
washes from one note.
MOD DEPTH : Use this knob to add modulation to the output. As you
turn clockwise, the modulation gets wider. Turn fully counterclockwise
for no modulation.