The PCM 81 Digital Effects Processor has everything that made the PCM 80 the top choice among studio effects processors - and more. More effects, more algorithms, longer delay, and full AES/EBU I/O. Each effect has an uncompromised stereo reverb with several voices of additional effects. A full complement of Pitch Shifters provides doubling, quadruple-tracking, chorus, and pitch correction within a range of up to three octaves (up or down) ? in one cent increments, as well as unique special effects. 300 presets give you instant access to pitch, reverb, ambience, sophisticated modulators, over 21 seconds of delay time, and dynamic spatialization effects for 2-channel or surround applications.
The PCM 81 features two digital signal processors: Lexicon's proprietary Lexichip, to run the reverbs, and a second DSP engine to handle the other effects. With 24-bit internal processing, a true stereo signal path, balanced analog I/O, full AES/EBU and S/PDIF digital I/O, the ability to mix analog and digital inputs together, and extensive modulation capabilities, the PCM 81 offers an enormous range of studio-quality effects.
Pitch FX and Vocal Fix algorithms and presets (available for the PCM 80 on PC cards) are built into the PCM 81. Adding Lexicon's Dual FX algorithm card and preset cards for the PCM 80 (which all work with the 81) increases the number of algorithms to over 40 and the number of presets to nearly 800.
Features
Studio-standard reverbs and effects, including all of the algorithms from the legendary PCM-70.
A single Adjust knob is automatically attached to all applicable parameters in each factory tailored preset. This allows fast and powerful modification of each preset in real time without ever going into the Edit mode.
Optional PC (PCMCIA) Cards for both new algorithm programs and user presets
Pro and Go Modes: Go mode gives you access to as many as ten hand-picked parameters for any particular preset. Pro Mode allows full access to an Edit Matrix of as many as a hundred parameters.
Balanced Analog I/O ? XLR and
Technical Info
Connectors: Combined 3-pole XLR and 1/4 in. T/R/S phone jacks (2)
Impedance:
0dB/BAL switch position: 100k, balanced
?20dB/UNBAL switch position: 50km unbalanced
A/D Performance
THD: <0.003%, 10Hz to 20 kHz
Dynamic Range: >105 dB
Conversion: 24 bits, 128x oversampling
Levels:
0dB/BAL switch position:?2dBu min full scale, +20dBu max
20dB/UNBAL switch position:22dBu min full scale, 0dBu max
Audio Output
Connectors: 1/4 in. T/R/S phone jacks (2); balanced XLR connectors (2)
Impedance: 125, each side, balanced
D/A Performance
THD: <0.005%, 10Hz to 20 kHz
Dynamic Range: >98 dB
Conversion: 20 bits, 128x oversampling
Levels: +18dBm max, full scale
(+4dBu setting)+4dBm max, full scale (+10dBu setting)
Muting: Relays provided for output muting during power on/off
Analog Audio
Interface Frequency Response: 10Hz to 20kHz +/-0.5dB
Crosstalk: ?55dB max, 10Hz to 20kHz
S/N Ratio: 90dB min, 20kHz bandwidth
THD: <0.006% max, 10Hz to 20kHz
Dynamic Range: >96 dB
Sample Rates: 44.1kHz, 48kHz
InterfaceConnectors: Coaxial, RCA Type (2); Balanced, XLR (2)
Format: S/PDIF (IEC-958) consumer and AES/EBU (AES3-1995) professional interface
Sample Rates: 44.1kHz, 48kHz
Conversion Data Path: 20 bits
DSP Data Path: 20/24 bits
Audio Memory
ConfigurationBase Memory: Two 256KB x 18 DRAMs (PCM 81)
Two 256KB x 20 DRAMs (PCM 91)
External Memory
CardConnector: Accepts PCMCIA Type 1 cards,
Standards: PCMCIA 2.0/JEIDA 4.0
Card Format: Supports up to 1MB SRAM
Control Interface
MIDI: 5-Pin DIN for MIDI IN, OUT, THRU
Footswitch: 1/4 in. T/R/S phone jack for 2 independent
momentary footswitches
Footpedal: 1/4 in. T/R/S jack (Z=10k
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