Live Pro (discontinued)

Rack Mount Intelligent Vocal Harmony and Effects Processor

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Any song that has the same note sung over two different chords confounds conventional harmonizers.-The Vocalist Live Pro is smarter than that.

The Vocalist Live Pro is a rack processor based on the Vocalist Live™ 4 that includes a new MIDI interface that works with keyboards as well as guitars. Utilizing the patent-pending musIQ™ - technology combining new Note Detection algorithms with state-of-the-art Harmony Generation - and the raw power of AudioDNA2, the Vocalist Live Pro can create real-time harmonies with your live voice that are in key and perfectly on pitch. With all that processing power, we were able to pack it full of other features as well, including world-class Lexicon® Reverbs, Soundcraft® low-noise studio-grade mic preamp, real-time pitch correction for each voice, individual persona and gender selection per voice, configurable outputs, tuner, 99 user factory presets and more. Plus, it's available with a fully assignable optional foot switch and expression pedal so you get real-time control and kick in the harmonies at just the right moment.

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musIQ® Makes the LivePro So Easy To Use

musIQ® is a revolutionary technology that eliminates the need program a song's key or changes to create accurate harmonies. musIQ® analyzes your lead vocals as well as the chords and notes played on a guitar in real-time to automatically generate perfect vocal harmonies. Simply plug into the LivePro, play your guitar and sing. The musIQ technology will ensure the harmonies are always right on.




  • 3 or 4 part vocal harmony using the musIQ™ technology with MIDI that analyzes the guitar and keyboard signal according to chord recognition.
  • Selectable unison, 3rd, 5th or octave above or below
    of lead vocal.
  • Pitch correction for each individual voice with 4 adjustable parameters
  • Lead vocal and harmony effects; Compressor, Lexicon®-Licensed Reverbs and EQ, Persona models
  • Edit, store and recall 99 user or 99 factory presets
  • On board guitar tuner
  • XLR mic /line w/ level adjustment, Soundcraft® studio grade preamp and 48V phantom power
  • L/R Stereo ¼" aux outputs, L/R XLR main outputs, S/PDIF out, ground lift, selectable output routings
  • MIDI in/thru
  • USB for preset Librarian and exchange
  • Footswitch and expression pedal jacks for remote control of presets and effects


Mic Preamp Connector XLR balanced
Mic Preamp Input Sensitivity for 0dBFS: -31.5dBu to +10dBu, for Analog Clip: -15.5dBu to +20dBu
Mic Preamp Equivalent Input Noise (EIN) -126.5 dBu A-Weighted, Ref 150 Ohms
Mic Preamp Input Impedance 2.4KOhms Balanced
Mic Preamp Thru XLR Male (Direct Connect to Mic In)
Line Input Connector 1/4" Balanced/Unbalanced TRS Connectors
Line Input Sensitivity for 0dBFS: +4.5dBu to +21dBu
Line Input Impedance 10K Ohms Balanced, 5K Ohms Unbalanced
Dynamic Range 107dB A-weighted
THD 0.002% (1KHz, Gain Max, 0dBu Input)
Frequency Response -3dB at 25Hz and 22KHz
Guitar Input/Thru Connectors 1/4" Unbalanced TS Connectors
Guitar Input/Thru Max input level 6 Vpp
Guitar Input/Thru Impedance Ground Connected: 2.2M Ohms, Ground Lifted: 4.4M Ohms
A/D Converter 24 bits/44.1kHz
D/A Converter 24 bits/44.1kHz
DSP Section Freescale DSP56367 DSP with custom firmware. All signal processing takes place at 44.1KHz sample rates, native.
Digital Output S/PDIF: RCA Connector. Sample Rate Reflects Internal Sample Rate of D/A Converters
USB Type B Port USB 1.1 Compliant, USB Full-Speed Mode (12Mbps) Class compliant MIDI port
Power Supply 220-240 VAC 50/60Hz / 100VAC, 50-60Hz / 120VAC, 60Hz
Power Consumption 17 Watts
Dimensions 19" x 7.5" x 1.75" (217mm x 135mm x 43.5mm) (1U 19" Rackmount)
Unit Weight 6.5 lbs (3kg)
Operating Temperature 60-95 Degrees F (15-35 Degrees C)


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Live Pro FAQs

Where can I get a replacement manual for my Vocalist Product?

Replacement manuals in PDF format can be downloaded for free from the individual product pages. To order a printed version of any current products manual, please send a check or money order for $5 (per manual) to the address below. Be sure to indicate which manual you're requesting in your letter.
Harman Signal Processing
8760 South Sandy Parkway
Sandy, UT 84070

Where can I get a schematic for my Vocalist product?

Schematics are not available for current products. Schematics for discontinued products can be purchased by sending a check or money order for $10 to the address below. Be sure to indicate which schematic you're requesting in your letter.

Harman Signal Processing
8760 South Sandy Parkway
Sandy, UT 84070

Where can I get extra parts for my Vocalist products?

Parts can be purchased directly from Vocalist a few different ways.
–By phone: (801)566-8800
–Online: Digitech Parts and Outlet Store
–Mail Order: send a check or money order to the address below. Be sure to indicate which part(s) you're requesting in your letter.

Harman Signal Processing
8760 South Sandy Parkway
Sandy, UT 84070

Does Vocalist have an artist endorsement program?

Yes. We’re always looking for passionate, personable, and talented people to help us share the vision and excitement of our brand and products. If you think you would be a good candidate for this please fill out the contact form on the Support page.

Where can I get more information on the musIQ (chord recognition) technology in the Vocalist Live products?

The musIQ technology is licensed from 3dB Research Ltd. Click here to learn more about 3dB Research Ltd. and musIQ®.

Live Pro (discontinued)

Rack Mount Intelligent Vocal Harmony and Effects Processor


Also available from worldwide distributors.