Digitech rpm1 Benutzerhandbuch
What is a rotary speaker?
A rotating speaker cabinet consists of a high frequency compression
driver and a low frequency speaker, whose sound is directed through
mechanical deflectors spun by motors. The motors can be switched
between stop, slow and fast rotation speed.
driver and a low frequency speaker, whose sound is directed through
mechanical deflectors spun by motors. The motors can be switched
between stop, slow and fast rotation speed.
The horn and the rotor create a directional beam of sound, and as
they spin, this sound beam is swept around 360°. The sound is always
moving in relation to the listener, creating pitch (Doppler) shifts, vol-
ume variation, and constantly changing, complex reflections from the
inside of the cabinet and the surrounding objects.
they spin, this sound beam is swept around 360°. The sound is always
moving in relation to the listener, creating pitch (Doppler) shifts, vol-
ume variation, and constantly changing, complex reflections from the
inside of the cabinet and the surrounding objects.
For tube-amp distortion for rhythm guitar, turn
up the Drive control. This will give a warm dis-
tortion similar to classic tube amplifier / bass
speaker cabinet combinations.
up the Drive control. This will give a warm dis-
tortion similar to classic tube amplifier / bass
speaker cabinet combinations.
Keyboard sounds
The RPM-1 sounds great on a variety of key-
board sounds, especially when used on a mixer
FX send so that you can blend the RPM-1 sound
with the direct sound. A touch of distortion will
enhance the realism of electric piano sounds,
and the cabinet emulation simulates the built in
speakers of popular electric pianos. Sampled
piano sounds through the RPM-1 with Drive at
11 o’clock, Horn Speed at 8 o’clock and Balance
at about 1 o’clock can create a convincing
“reed” electric piano. With Drive at 8 o’clock,
and Balance closer to 12:00, you can get a com-
pressed, bell-like piano sound. The cabinet
emulation will round out and warm up any
sound you put through it, so try the RPM-1 with
the Brake engaged even when you don’t want a
rotating speaker effect. The cabinet emulation
has a definite personality to its frequency
response, so “realistic” sampled sounds and
sounds with lots of high frequency content can
be altered, sometimes dramatically. You can
experiment with it; try doubling the RPM-1
sound with the straight sound, both for solo
instruments and for pad sounds. Turn off any
distortion, delay, chorusing or modulation in the
instrument to feed the RPM-1 a clean sound.
board sounds, especially when used on a mixer
FX send so that you can blend the RPM-1 sound
with the direct sound. A touch of distortion will
enhance the realism of electric piano sounds,
and the cabinet emulation simulates the built in
speakers of popular electric pianos. Sampled
piano sounds through the RPM-1 with Drive at
11 o’clock, Horn Speed at 8 o’clock and Balance
at about 1 o’clock can create a convincing
“reed” electric piano. With Drive at 8 o’clock,
and Balance closer to 12:00, you can get a com-
pressed, bell-like piano sound. The cabinet
emulation will round out and warm up any
sound you put through it, so try the RPM-1 with
the Brake engaged even when you don’t want a
rotating speaker effect. The cabinet emulation
has a definite personality to its frequency
response, so “realistic” sampled sounds and
sounds with lots of high frequency content can
be altered, sometimes dramatically. You can
experiment with it; try doubling the RPM-1
sound with the straight sound, both for solo
instruments and for pad sounds. Turn off any
distortion, delay, chorusing or modulation in the
instrument to feed the RPM-1 a clean sound.
Organ
For best results, make sure that your organ
sound input is as pure as possible. Whether you
are using a combo organ, synthesizer, sound
module or tone-wheel organ, turn off any dis-
tortion, delay, chorusing or modulation in the
instrument. The best sound is achieved by let-
ting the RPM-1 add the rotating speaker emula-
tion to a clean organ sound. You can add
reverb or delay with an external effects device
placed after the RPM-1 in the audio chain, or
through an effects send on your mixer.
sound input is as pure as possible. Whether you
are using a combo organ, synthesizer, sound
module or tone-wheel organ, turn off any dis-
tortion, delay, chorusing or modulation in the
instrument. The best sound is achieved by let-
ting the RPM-1 add the rotating speaker emula-
tion to a clean organ sound. You can add
reverb or delay with an external effects device
placed after the RPM-1 in the audio chain, or
through an effects send on your mixer.
Organists will often change the timbre of their
sound by pushing in and pulling out the draw-
bars on their instrument while they are playing.
This emphasizes certain frequencies of their
sound over others. If you are not using an
organ with drawbars, you can twist the RPM-1
Balance control to get a variation in tone while
you are playing.
sound by pushing in and pulling out the draw-
bars on their instrument while they are playing.
This emphasizes certain frequencies of their
sound over others. If you are not using an
organ with drawbars, you can twist the RPM-1
Balance control to get a variation in tone while
you are playing.
Motor
H.F. Driver
Horn
Dummy
Horn
Horn
Sound
L.F. Driver
(woofer)
(woofer)
Rotor
Sound
Motor
Conceptual diagram of a rotating speaker cabinet. The components
above would be housed in a large wooden cabinet.
above would be housed in a large wooden cabinet.
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