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DigiTech GNX4 Guitar Multi-Effects Pedal

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Product Description

The DigiTech GNX4 Guitar Multi-Effects Pedal is a full-featured multi-modeling floor effects processor, portable digital 8-track recorder, MIDI drum machine, MP3 player, and 4 in 4 out USB audio computer interface combined into a single package. DigiTech has once again raised the bar in defining the performing/recording guitarist’s ideal workstation. Never before has there been a product that gives the aspiring guitarist the ease and convenience to capture ideas and turn them into masterpieces at such an affordable price.

DigiTech GNX4 Guitar Multi-Effects Pedal Features

  • Guitar multi-modeling recording workstation
  • 15 guitar amp and 10 bass amp models
  • Distortion stompbox modeling
  • Hypermodel creation-unlimited tones
  • Built-in 8-track digital recorder
  • 6 channels of audio streaming via USB (record 4, playback 2)
  • MP3 Playback
  • High quality mic preamp with 48V phantom power
  • Stereo line inputs
  • Built-in MIDI Drum machine
  • Compact Flash memory storage
  • XLR and 1/4 inch stereo outputs with Speaker Compensation
  • 80 User/80 Factory Presets
  • 24-bit A/D/A converters
  • Recorder remote control via optional GNXFC
  • Boatloads of bundled software
As a performing guitar processor, the GNX4 is unmatched in its class. At the heart of the GNX4 is DigiTech’s multi-modeling amp and cabinet modeling engine, where the sky is the limit on the number of amp and cabinet models that are available. Combine your favorite amp tone with studio quality effects processing, including the legendary Whammy and you have an unparalleled processing device. Connect to both your onstage amp and the house mixer using both the XLR and 1/4 inch outputs and find out what a huge sound really is.

When you are ready to record, so is the GNX4. Thanks to USB connectivity and the included Pro Tracks Plus recording software, hands-free recording has been taken to the next level. Just press the record footswitch and stream four channels of 24-bit audio to the computer while playing two channels back, all with zero latency monitoring. A high-quality mic input with true +48V phantom power and stereo line inputs let you professionally capture virtually any audio source with ease. For the finishing touch, process your work through world-class Lexicon reverbs courtesy of the Pantheon reverb plug-in provided with both Pro Tracks Plus recording software for PC and BIAS Deck SE recording software for Mac. If you are out jamming with the band, the built-in 8-track recorder can capture the magic riffs that come out of nowhere and save the moment onto the Compact Flash memory card for transfer to the computer later.

The GNX4 also features an advanced MIDI drum machine, providing a vast library of high quality drum kits and patterns to help craft your music with. You can even use your own MIDI files to playback the GNX4’s drums. When not playing drums, the GNX4’s drum machine playback engine can play back your favorite MP3s for something cool to rehearse with or for live performance.

Included Software
  • Pro Tracks Plus
  • Lexicon Pantheon Reverb Plug-in
  • Cakewalk Pyro Express for CD burning
  • BIAS Deck 3.5 SE Mac Recording
  • X-Edit Editor-Librarian
Front Panel
    8 Track Digital Recorder
    Record up to eight tracks of guitar, vocals, keyboards, bass, drums, or any acoustic or line level source, all hands-free.

    JamMan Delay Looper
    The onboard 8-track recorder doubles as a sophisticated delay looper with 8 levels of undo.

    Stompbox Modeling
    Select from 10 popular distortion stompboxes.

    Hypermodels
    Use the Warp knob to morph amp and cabinet models together to create your own custom Hypermodels.

    MIDI Drum Machine
    with multiple patterns and kits and .MID file compatibility for adding your own.

    MP3 Playback using the GNX4's drum machine playback engine. MP3s are a perfect way of economizing memory usage for live audio performance or great for practicing and tutorial applications.
Rear Panel
    Mic Input
    Record your vocal or acoustic performances with this low-noise/high headroom microphone preamp. It features +48V Phantom Power and Input Level control for compatibility with professional condenser and dynamic mics.

    1/4 inch Stereo Line Inputs accept keyboards, electronic instruments, or any line level device for recording.

    Unbalanced 1/4 inch Outputs
    Sends signals to our amp rig onstage while routing the XLR outputs with Speaker Compensation to your house mixer for a truly huge blend of your sound.

    XLR Outputs
    With Output Level control, Speaker Compensation and ground Lift buttons make the GNX4 the hub of your recording system. Plug in professional powered studio monitors for zero-latency monitoring or feed your house mixer with a balanced signal.

    USB Port
    USB connectivity provides streaming of six channels of 24 bit audio to and from the computer with zero-latency monitoring.

    MIDI In and Out
    Control GNX4 parameters, record MIDI sequences to your computer, or control the built-in MIDI drum machine.

    Compact Flash Memory Slot
    Use for remote recording memory storage or for GNX4 preset storage.
DigiTech GNX4 Guitar Multi-Effects Pedal Details
  • 24-bit analog-digital Delta Sigma converters
  • Compact Flash Type I compatible card
  • MIDI compatible Drum Machine
  • 11 simultaneous Effects
  • 80 User, 80 Artist Presets, 80 more User with optional CF card
  • Guitar Input: 1/4 inch unbalanced
  • Mic Input: XLR balanced with phantom power
  • Line Inputs: 2 1/4 inch TRS
  • Footswitch Connector: 1/4 inch stereo TRS
  • Line Outputs:
    • 2 1/4 inch Balanced
    • 2 XLR Balanced
  • Headphone Output: 1/4 inch Stereo
  • MIDI: In, Out, Thru
  • USB: 1.1

Product Specifications
DigiTech GNX4 Guitar Multi-Effects Pedal Specifications

General
  • A/D Converter: 24-bit high performance audio
  • D/A Converter: 24-bit high performance audio
  • Sampling Frequency: 44.1 kHz throughout
  • DSP Section: 3 Audio DNA DSP Processors + dedicated 8-Track Engine/MP3 Player/MIDI Drum Machine DSP
  • Preset Memory:
    • 80 Factory Presets
    • 80 User Presets
    • 80 Card Presets (using an optional Compact Flash Memory Card)
Digital Connections
  • Footswitch: 1/4 inch jack (compatible with optional GNXFC)
  • MIDI In: 5-pin Din
  • MIDI Out/Thru: 5-pin Din
  • Universal Serial Buss (USB): Type B, supports USB1.1 Full Speed (12 MHz Bandwith USB 2.0 compatible)
Compact Flash Memory
  • Card Interface: Type 1 (solid state cards)
  • 32 MB up to 2 GB
  • FAT 16 File Format Only
  • *Note: GNX4 is NOT compatible with Type II cards or IBM/Hitachi Microdrives
Analog Input Connections
    Guitar Input
  • 1/4 inch Unbalanced (Tip-Sleeve)
  • Input Impedance: 475 kOhms


  • Mic Preamp Input
  • XLR Balanced (Female XLR, pin 2 Hot)
  • Phantom Power: +48V
  • Input Impedance: 600 Ohms balanced
  • Maximum Input Level: -22 dBu with mic input level (trimpot) set to max, or -2 dBu with mic input level (trimpot) set to max and -20 dB Pad enabled


  • Line Inputs
  • 1/4 inch Balanced (Tip-Ring-Sleeve) or Unbalanced
  • Input Impedance: 20 kOhms Balanced, 10kOhms Unbalanced
  • Maximum Input Level: +22 dBu
Analog Output Connections
    Line Outputs
  • 1/4 Impedance Balanced or Unbalanced
  • Output Impedance: 1 kOhm per side
  • Maximum Output Level: +22 dBu


  • Balanced Outputs
  • Male XLR
  • Output Impedance: 120 Ohms
  • Maximum Output Level: +22 dBu
  • Ground Lift Switch: When GND position (pin 1 connects to pin 4 chassis ground)
    When LIFT position (pin 1 is lifted meaning it is not electrically connected)


  • Headphones
  • 1/4 inch Stereo (Tip = Left, Ring = Right, Sleeve = Ground)
    100 mW per channel at 50 Ohms
Analog Inputs to Analog Outputs
    Guitar Input to 1/4 inch Outputs
  • S/N ratio: > 106 dB A-weighted; ref = max signal @ 1kHz, 22kHz measurement bandwidth
  • Frequency Response: 20 Hz - 17 kHz (+0 / - 3 dB)
  • THD+N: < 0.0018% typical at -4 dBu, 1 kHz, 0 dB input gain


  • Guitar Input to XLR Outputs
  • S/N ratio: > 106 dB A-weighted; ref = max signal @ 1kHz, 22kHz measurement bandwidth
  • Frequency Response: 20 Hz - 17 kHz (+0 / - 3 dB)
  • THD+N: < 0.0018% typical at -4 dBu, 1 kHz, 0 dB input gain


  • Mic Input to 1/4 inch Outputs (Mic Dry selected)
  • S/N ratio: > 106 dB A-weighted; ref = max signal @ 1kHz, 22kHz measurement bandwidth
  • Frequency Response: 20 Hz - 17 kHz (+0 / - 1 dB)
  • THD+N: < 0.0015% typical at -10 dBu, 1 kHz, 0 dB input gain


  • Mic Input to XLR Outputs
  • S/N ratio: > 106 dB A-weighted; ref = max signal @ 1kHz, 22kHz measurement bandwidth
  • Frequency Response: 20 Hz - 20 kHz (+0 / - 1 dB)
  • THD+N: < 0.0018% typical at -18.4 dBu, 1 kHz, 0 dB input gain


  • Line Inputs to 1/4 inch Outputs (Line Dry selected)
  • S/N ratio: > 106 dB A-weighted; ref = max signal @ 1kHz, 22kHz measurement bandwidth
  • Frequency Response: 20 Hz - 20 kHz (+0 / - 1 dB)
  • THD+N: < 0.0023% typical at +10 dBu, 1 kHz, 0 dB input gain


  • Line Inputs to XLR Outputs
  • S/N ratio: > 106 dB A-weighted; ref = max signal @ 1kHz, 22kHz measurement bandwidth
  • Frequency Response: 20 Hz - 20 kHz (+0 / - 1 dB)
  • THD+N: < 0.0025% typical at +10 dBu, 1 kHz, 0 dB input gain
GNX4 On-board Digital Recorder
  • General Specification: 16-bit, 44.1 kHz (CD quality)
GNX4 USB Recording Specifications
  • Bit Depth: supports 16-bit or 24-bit (depends on setup in Recording Software)
  • Sample Rate: 44.1 kHz


  • The following measurements were made using 24-bit mode:
  • Line Input to USB (Dry Line recorded to USB)
    Analog to Digital Converter Performance:
    • S/N Ratio: > 110 dB A-weighted; ref = max signal @ 1kHz, 22kHz measurement bandwidth
  • USB to 1/4 inch Outputs (Audio Playback from USB to GNX4):
    Digital to Analog Converter Performance
    • S/N Ratio: > 106 dB A-weighted; ref = max signal @ 1kHz, 22kHz measurement bandwidth
  • USB to XLR Outputs (Audio Playback from USB to GNX4)

  • Digital to Analog Converter Performance
    • S/N Ratio: > 106 dB A-weighted; ref = max signal @ 1kHz, 22kHz measurement bandwidth
Power Requirements
  • 120 VAC, 60 Hz
    Adapter: PSS3-120 (included)
  • Power Consumption: 21.0 Watts
Other
  • Dimensions (L x W x H): 21.5 x 9 x 3.25 inches
  • Unit Weight: 10 pounds


Helpful Info about the Manufacturer
Phone:  801-566-8800 Warranty:  1 Year
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