DigiTech
RPM-1 Rotary Speaker Emulator
July
14, 1995DigiTech is introducing the RPM-1, a vacuum tube rotary speaker emulator offering
the classic sounds of a rotating speaker from a single-rack-space unit. Designed
for discerning keyboard and guitar players, the RPM-1 blends the best of analog
vacuum tube and digital custom-VLSI technologies for unprecedented flexibility
and control. The RPM-1's dual-triode 12AX7 preamp provides a natural warmth
as well as an expressive distortion when overdriven. The DRIVE control on the
front panel allows the user to dial in just the level of distortion desired. To
retain the authenticity of the sound, the RPM-1 emulates the sonic characteristics
of the large cabinet and horn driver while using the same crossover frequency
and slope found on original '50s rotary speaker systems. The RPM-1 also effectively
emulates the natural Doppler (volume and pitch modulation) effect of a rotating
speaker due to DigiTech's advancements in pitch-shifting. Two independent pitch-shifters
allow the horn and rotor to change speeds at different rates and the front-panel
HORN SPEED and ROTOR ACCELERATION controls provide the same function as choosing
different drive size pulleys on original rotary speaker cabinets. The SPREAD
control provides control over two virtual microphones on the horn. Up to 180 degrees
of microphone separation can be achieved--similar to positioning mics on either
side of the cabinet. The user can choose mono or stereo mix outputs, or they can
connect to separate outputs for left horn, right horn and rotor for individual
processing. Backlit buttons allow direct control of SPEED (fast/slow), BRAKE
and BYPASS. For remote control, the RPM-1 includes a three-button footswitch.
It also provides new levels of expressiveness by allowing the user to fine tune
speed on the fly with a standard volume pedal. When connected to the CONTINUOUS
CONTROLLER input on the rear panel, a volume pedal allows the user to sweep the
rotational speed up or down. The RPM-1 is housed in a sturdy, single-rack-space
metal case. The transformer and power supply are built-in for years of trouble-free
operation, eliminat ing the need for a "wall wart". The RPM- 1 offers a dynamic
range of greater than 90 dB, "A" weighted, and is available for a suggested list
price of $569.95. For
more information contact:
DigiTech
8760 South Sandy Parkway
Sandy,
UT 84070
Fax: (801) 566-7005
Voice: (801) 566-8800
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