dbx goRack Owner's Manual
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dbx goRack Owner's Manual

Portable loudspeaker processor
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PERFORMANCE PROCESSOR
Owner's Manual

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  • Page 1 PERFORMANCE PROCESSOR Owner’s Manual...
  • Page 2 5. The foregoing is in lieu of all other warranties, expressed or implied, and dbx neither assumes nor authorizes any person to assume on its behalf any obligation or liability in connection with the sale of this product. In no event shall dbx or its dealers be liable for special or consequential damages or from any delay in the performance of this warranty due to causes beyond their control.

  • Page 3: Table Of Contents

    User Interface & Connectors �������������������������������������������������������� 3 Top Panel ���������������������������������������������������������������������������������������������������������������������3 Rear Panel �������������������������������������������������������������������������������������������������������������������4 Setup ��������������������������������������������������������������������������������������������������� 5 Making Connections ������������������������������������������������������������������������������������������������5 Configuring The goRack’s Routing ����������������������������������������������������������������������6 Setting Initial System Levels ����������������������������������������������������������������������������������8 Operating The goRack ����������������������������������������������������������������� 10 Master Volume ��������������������������������������������������������������������������������������������������������10 Output Limiter & Clipping ������������������������������������������������������������������������������������10 Anti-Feedback ���������������������������������������������������������������������������������������������������������11...

  • Page 4: Overview

    The goRack can be used to provide loudspeaker processing in a conventional sound system by placing it between the mixer and powered speakers/amplifiers or as a stand-alone 2-channel mixer/loudspeaker processor, making it ideal for band rehearsal spaces, live performance of solo artists or duos, weddings, or speech/presentation applications.

  • Page 5: User Interface & Connectors

    Pressing this button will mute/unmute the goRack’s outputs. Pressing and holding this button for 2 seconds enters Routing mode (indicated by a flashing LED), where you can select a routing option. See ‘Configuring The goRack’s Routing’ on page 6 for more information on the routing options available in the goRack.

  • Page 6: Rear Panel

    3. AUX INPUT Jack Connect a mobile device or portable music player to this 1/8” (3.5mm) stereo Mini jack. There are a couple of different processing routing options available for this jack (see ‘Configuring The goRack’s Routing’ on page 6 for more information).

  • Page 7: Setup

    When powering up a fully connected PA system, it is advisable to ALWAYS turn on the goRack (and mixer if applicable) first then turn on your amplifiers or powered speakers last. It’s also a good idea to ensure the goRack VOLUME or mixer output gains are reduced before applying power to the amplifiers.

  • Page 8: Configuring The Gorack's Routing

    PERFORMANCE PROCESSOR Configuring The goRack’s Routing The goRack offers 3 routing options to select from. The following table provides a description of each of these routing options. Routing Options Option Type Description Routing Diagram This is the default setting from the factory.
  • Page 9 PERFORMANCE PROCESSOR To select a Routing option: INPUT SIGNAL VOLUME LEFT RIGHT (EDIT) 1. Press and hold the MUTE (MODE) button for 2 seconds (the LED will flash, indicating Route mode is active). MUTE ANTI-FEEDBACK COMPRESSOR SUB SYNTH MODE (HOLD) EDIT INPUT SIGNAL VOLUME...

  • Page 10: Setting Initial System Levels

    PERFORMANCE PROCESSOR Setting Initial System Levels Properly setting system levels will help keep distortion and noise levels down, improve anti-feedback operation, and provide ample headroom for clean and safe operation of the sound system. To set system levels: Powered Amplifier Speakers 1.
  • Page 11 INPUT SIGNAL VOLUME LEFT RIGHT (EDIT) 6. Further system level adjustments can be made during the performance using the goRack’s VOLUME encoder if required. MUTE ANTI-FEEDBACK COMPRESSOR SUB SYNTH MODE (HOLD) EDIT TIP: If additional system level is required or the source levels are too dynamic (meaning the source levels vary dramatically between soft and loud), try enabling and adjusting the compressor.

  • Page 12: Operating The Gorack

    PERFORMANCE PROCESSOR Operating The goRack This section of the manual describes the processing types available and how to operate the goRack. Master Volume When the goRack initially boots, the encoder will control master output volume. This is the default operating mode.

  • Page 13: Anti-Feedback

    TIP: AFS works best when the signal entering the goRack’s inputs is sufficient. If the signal level is too low, AFS may be slow to respond to feedback. See ‘Setting Initial System Levels’ on page 8 for further information on setting the...
  • Page 14 PERFORMANCE PROCESSOR Available Anti-Feedback Options The Anti-Feedback options available in the goRack allow you to adjust the width of the notch filters. A description of each of these options is provided in the following table. Anti-Feedback Width Options Option Application Type...
  • Page 15 LEFT RIGHT 4. When done, press any button to exit Edit mode. (EDIT) Note that any set AFS filters will be automatically cleared whenever the AFS button is disabled or the goRack is power cycled. MUTE ANTI-FEEDBACK COMPRESSOR SUB SYNTH...

  • Page 16: Compressor

    If using a dedicated mixer along with dedicated compression on individual channels, the compressor in the goRack can be used more judiciously for adding a small dose of additional dynamics control to the entire mix.
  • Page 17 PERFORMANCE PROCESSOR INPUT SIGNAL VOLUME LEFT RIGHT (EDIT) 2. To edit the compressor, press and hold the COMPRESSOR button for 2 seconds (the COMPRESSOR LED will flash, indicating Compressor Edit mode is active). MUTE ANTI-FEEDBACK COMPRESSOR SUB SYNTH MODE (HOLD) EDIT INPUT SIGNAL VOLUME...

  • Page 18: Subharmonic Synthesizer

    PERFORMANCE PROCESSOR Subharmonic Synthesizer dbx subharmonic synthesis (or sub synth) processing has been specifically optimized to enhance the low frequencies in audio material and was designed for use in a variety of professional audio applications, including nightclub and dance DJ mixing, theatre and film sound, sound design, music recording, live music performance, and broadcasting.
  • Page 19 If you’re using the goRack as a 2-chanel mixer and you wish to use subharmonic synthesis processing on music played through the goRack’s AUX INPUT jack and don’t want vocals or instruments to be treated with the sub synth effect, select the goRack’s routing 3 option.
  • Page 20 Various factors will determine how a sound system will sound in a room, such as the frequency response of the speakers, the frequency response of any microphones or instruments used, and the room acoustics to name a few. The goRack has 16 EQ preset curves to select from.
  • Page 21 PERFORMANCE PROCESSOR EQ Presets Option Name Description EQ Curve This EQ curve will enhance the bass while simultaneously scooping out some lower-midrange Deep “mud” and slightly reducing the midrange and treble frequencies, providing a deeper, sub-bass sound. Select this curve to tame treble frequencies when a system sounds overly Treble...
  • Page 22 PERFORMANCE PROCESSOR EQ Presets Option Name Description EQ Curve This EQ curve can reduce De-Mud “mud” which can build up around the 300 Hz region. This curve can help reduce low-frequency noise and Speech increase intelligibility in systems reproducing speech only. This curve can help tame a system that sounds “boxy”...
  • Page 23 PERFORMANCE PROCESSOR To use the EQ: INPUT SIGNAL VOLUME LEFT RIGHT (EDIT) 1. Press the EQ button to enable the EQ module (the LED will light, indicating the processing module is enabled). MUTE ANTI-FEEDBACK COMPRESSOR SUB SYNTH MODE (HOLD) EDIT INPUT SIGNAL VOLUME...

  • Page 24: Application Diagrams

    • Make connections as described in ‘Making Connections’ on page 5 then apply power to the system according to the instructions described in ‘Applying Power’ on page 5. • The routing 3 option will work best for this application. See ‘Configuring The goRack’s Routing’ on page 6 for information on goRack routing options.

  • Page 25: Application 2: Solo Artist/Duo Performance

    • Make connections as described in ‘Making Connections’ on page 5 then apply power to the system according to the instructions described in ‘Applying Power’ on page 5. • The routing 3 option will work best for this application. See ‘Configuring The goRack’s Routing’ on page 6 for information on goRack routing options.

  • Page 26: Application 3: Band Performance

    This application is suited for band rehearsal spaces, small venue live performances, or small DJ applications where the sound system already consists of a dedicated mixer and the goRack is used for system processing only. The goRack’s two combination MIC/LINE inputs can be connected to the mixer’s left/right master outputs. Stereo imaging will be maintained through the system when using the LEFT/RIGHT inputs and the pan pots on the mixer can be used to place sound sources in the stereo field if required.

  • Page 27: Application 4: Using Powered Subwoofers

    • Make connections as described in ‘Making Connections’ on page 5 then apply power to the system according to the instructions described in ‘Applying Power’ on page 5. • The routing 2 option will work best for this application. See ‘Configuring The goRack’s Routing’ on page 6 for information on goRack routing options.

  • Page 28: Technical Information

    1/4” TS PHONE TO RCA PHONO 1/4” TRS PHONE TO TRS PHONE GROUND TIP + T DEVICE (INPUT) To Input of Device TO NEXT DEVICE (INPUT) TIP + (SEND) FROM SOURCE DEVICE (OUTPUT) FROM SOURCE DEVICE SLEEVE Tip / Send PERFORMANCE PROCESSOR TIP + SLEEVE...

  • Page 29: Specifications

    PERFORMANCE PROCESSOR Specifications INPUTS Mic/Line Number of Inputs: 2, independently switchable between mic or line level Connectors: Female ¼” - XLR combination Type: Electronically balanced, RF filtered Impedance: Switch set to MIC: 2 kΩ balanced, Switch set to LINE: 22 kΩ balanced Max Gain: Switch set to MIC: 48 dB, Switch set to LINE: 5 dB Max Input Level:...

  • Page 30: Additional Resources

    PERFORMANCE PROCESSOR Additional Resources dbx Website http://dbxpro.com goRack Product Page http://dbxpro.com/en-US/products/goRack dbx Support http://dbxpro.com/en-US/support dbx User’s Forum http://dbxpro.com/forum...
  • Page 31 Phone: (801) 566-8800 Website: dbxpro.com Support: dbxpro.com/en-US/support dbx Professional Products is a registered trademark of Harman © 2015 Harman All rights reserved goRack Owner’s Manual Rev A...

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