Lexicon PCM92 Reverb and Effects Processor

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  • Lexicon PCM92 Reverb and Effects Processor - Angle View
  • Lexicon PCM92 Reverb and Effects Processor - Front
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  • Lexicon PCM92 Reverb and Effects Processor - Diagram


Sound Extraordinary on Stage and in the Studio
With 4 decades of experience, Lexicon is regarded as the gold standard in digital audio processing. Building on the legendary design of the venerable PCM81 and PCM91, and the breakthrough technology of the PCM96, the PCM92 represents the most advanced reverb and effects processor in its class.

This powerhouse processor utilizes the latest DSP technology and the finest collection of classic Lexicon algorithms to offer the ultimate audio processor for live sound and studio applications. The PCM92 delivers 28 mono and stereo reverbs, delays, and modulation effects, flexible routing configurations, and a comprehensive collection of over 1200 finely-crafted presets, including recognizable classics from our immense library of sounds.

The PCM92 features the highly acclaimed Hall, Concert Hall and Random Hall reverb algorithms that are consistently used by live sound and recording engineers because of their exceptional ability to reproduce the musical ambience of large, wide, panoramically wonderful spaces. In fact, these classic Lexicon Hall algorithms have been used on more than 80% of all recorded music.

Lexicon’s Room algorithm offers an amazing palette of natural sounding rooms with all the inherent realism of the actual space. Reflection patterns are easily selected, scaled, and equalized all while simultaneously passing audio and the room size can be instantly changed or reversed. These capabilities provide a more flexible alternative to convolution type reverbs due to the precise control and manipulation that is only possible with a reverb synthesizer.

One of the stunning advances in the PCM92 is the ability to create incredibly realistic small spaces. For both music and film production, it is often vital to have the ambience of a phone booth or very small drum room. In the PCM92 you can create them with a reality never heard before from any processor other than a Lexicon.

In addition, the PCM92 delivers new capabilities to traditional reverbs by adding multimode filters in the audio flow.  This allows more exact shaping of the reverb while still maintaining that distinctive smooth, rich “Lexicon Sound.” Also, all reverbs have an “Infinite” switch that allows the reverb to run forever, which is useful for creating unusual backgrounds and sound effects.

Designed as a single rack space processor with two channels of balanced XLR or 1/4" analog I/O and two channels of XLR AES/EBU digital I/O, along with MIDI, Word Clock, and Ethernet, the PCM92 complements any large scale mixing console or integrates easily in your studio.

Whether you require perfection on stage or the gold standard in the recording studio, the PCM92 delivers the versatility and smooth, rich sound that is unmistakably Lexicon.


  • Room
  • Hall
  • Plate
  • Random Hall
  • Chorus/Flange
  • Chamber
  • Dual Delay
  • Concert Hall
  • Random Delay
  • Multivoice Pitch
  • VSO Pitch
  • Resonant Chords
  • Signal Generator

 Easy Operation
The PCM92 is as simple to operate as it is a pleasure to listen to. Just load a preset and the easy to use front panel keeps the most logical parameters within reach on the high-resolution display for adjustments and fine tuning. For in-depth sound design, you also have the capability to transition deeper into the algorithm and edit the full matrix of parameters.

To supplement front panel navigation for live applications, the PCM92 can be configured and fully controlled remotely through Harman HiQnet System Architect™ from any PC. System Architect uses the Harman HiQnet protocol to configure and control the PCM92 seamlessly within a larger audio system that may consist of Harman Professional brands such as JBL®, Crown®, dbx® and AKG®.

Also, foot pedal controllers make it easy to change presets and adjust parameters during live performances. The PCM92 can be controlled by either a two button momentary foot switch or a variable position foot pedal.

Routing Options (Analog, Digital)
The PCM92 can be divided into four virtual machines which allow the signal from each input to be routed through a variety of algorithm combinations.


  • 28 Lexicon® studio-standard reverbs, delays, and modulation effects
  • Comprehensive collection of over 1200 finely crafted factory presets, including recognizable classics from Lexicon’s immense library of sounds
  • Lexicon’s flexible Room algorithm used to generate a vast array of room-related effects for music and film production
  • Multi-voice pitch shift to enhance vocals
  • Full system configuration and control with HiQnet™ System Architect™
  • 44.1 to 96 kHz sample rate, 32-bit floating point processing
  • Two channels balanced analog I/O (XLR and 1/4")
  • Two channels XLR digital AES/EBU I/O
  • Ethernet connectivity and full MIDI control
  • External BNC Word Clock
  • Foot controller inputs make it easy to change presets and adjust parameters during live performances
  • High-resolution OLED display is easy to read in all light conditions
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Analog inputs

Connectors - Two, Female XLR
Impedance - 20K Ohm, balanced
Level (for 0 dbFS)

  • +4dBu mode: +20dBu
  • –10dBV mode: 8.2dBu

Freq Response @96K - 20Hz to 40KHz, +0/–3dB
A/D Conversion - 24 bits
A/D Dyn Range - greater than 112 dB unweighted, 115dB A-weighted
THD -  less than .002% 20-20kHz @ +4dBu
Crosstalk @ 1Khz - less than –90 dB, 20-20k at +20dBu input

Analog output

Connectors - Two, Male XLR
Impedance - 30 Ohm, electronically balanced
Level (at 0 dBFS) - +20dBu
Freq Response @96K - 20 Hz - 20 kHz, +/- 0.25 dB 20Hz - 40kHz +0/–3dB
D/A Conversion - 24 bits
D/A Dyn Range - 112 dB unweighted, 115 dB A-weighted
THD - less than .002% 20Hz - 20kHz at +4dBu
Crosstalk @ 1kHz - less than –90 dB at 20Hz - 20kHz with +20dBu input

Digital audio I/O

Connectors -

  • One Male XLR Output
  • One Female XLR Input
  • Two FireWire Ports

Format - AES/EBU/FireWire (400Mb)
Word Size - 24 bits
Sample Rates -

  • Internal - 44.1kHz/48kHz/88.2kHz/96kHz; Accuracy - within ±50ppm
  • External - 44.1kHz/48kHz/88.2kHz/96kHz

Lock Range - ±2% of nominal
Propagation Delays (Milliseconds)
- 1.07 to 1.64 depending on settings


TTL Word Clock Input  - 75 Ohm, BNC *Falling edge marks start of frame

Control interfaces

MIDI ** - In/Out/Thru **supports program change


Chamber - Stereo and Mono
Random Delay - Stereo and Mono
Random Hall - Stereo and Mono
Plate - Stereo and Mono
Dual Delay - Stereo and Mono
Resonant Chords - Stereo and Mono
Chorus/Flange - Stereo only
Concert Hall - Stereo only
Room - Stereo and Mono
Hall - Stereo and Mono
Signal Generator

Storage Media

Type I Compact Flash - Can hold up to 1536 user presets

Machine Configurations


  • Two Mono (Super-mono capable)
  • Single Stereo (Super-stereo capable)
  • Two Cascaded Mono pairs
  • Cascaded Stereo
  • Two Mono cascaded into single Stereo
  • Dual mono-in/stereo-out with combined outputs
  • Single Super Stereo
  • Two Stereo
  • Dual Super Mono
  • Four Mono
  • Two Mono and One Stereo


Internal hard Disk Storage
Internal non-volatile Flash. Can hold 768 user presets.

Power Requirements
100-120 / 220-240 VAC
50-60Hz, 14W max
Connector - 3-pin IEC

Rack Units - 1U
Size - 19.0” W x 1.75” H x 12.5” D (483mm x 44.5mm x 317.5mm)
Weight - 8.65 lbs

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