® Owner’s Manual
IMPORTANT SAFETY INSTRUCTIONS WARNING FOR YOUR PROTECTION READ THE FOLLOWING: KEEP THESE INSTRUCTIONS HEED ALL WARNINGS FOLLOW ALL INSTRUCTIONS The symbols shown above are internationally accepted symbols that warn of potential hazards with electrical products. The lightning flash with arrowpoint in an equilateral triangle means that there are dangerous voltages present within the unit.
IMPORTANT SAFETY INSTRUCTIONS ELECTROMAGNETIC COMPATIBILITY This device complies with part 15 of the FCC Rules and the Product Specifications noted on the Declaration of Conformity. Operation is subject to the following two conditions: • this device may not cause harmful interference, and • t his device must accept any interference received, including interference that may cause undesired operation.
® Warranty 1. The warranty registration card that accompanies this product must be mailed within 30 days after purchase date to validate this warranty. You can also register online at www.dbxpro.com. Proof-of-purchase is considered to be the responsibility of the consumer. A copy of the original purchase receipt must be provided for any warranty service. 2. dbx warrants this product, when purchased new from an authorized U.S. dbx dealer and used solely within the U.S.
® Table of Contents Overview ����������������������������������������������������������������������� 2 Introduction ������������������������������������������������������������������������������������������������� 2 Features ������������������������������������������������������������������������������������������������������� 3 User Interface & Connectors ����������������������������������� 4 Front Panel ������������������������������������������������������������������������������������������������� 4
® Overview Introduction The DriveRack® PA2 represents the next generation of PA loudspeaker management processing from dbx®. With dynamics, EQ, feedback suppression, crossover, subharmonic synthesis, and delay processing, the DriveRack PA2 provides all the processing you need between your mixer and amplifiers to optimize and protect your loudspeakers.
® Features • Setup Wizard For Easy System Configuration • Level Assist For System Level Balancing • AutoEQ™ For Fast & Accurate Room Equalization Using 8-Band Parametric EQ • AFS™ For Ringing Out The System & On-The-Fly Feedback Suppression • 31-Band Graphic EQ For Tailoring The System’s Frequency Response To Taste • Subharmonic Synthesizer • dbx® Compression • Pre-Crossover Delay For Aligning The Sound System To The Stage Backline • Crossover With Support For Full Range, 2-Way, & 3-Way Configurations • St
® User Interface & Connectors Front Panel 1 2 1. RTA MIC INPUT 3 5 4 6 8 7 10 12 9 11 13 Connect the dbx RTA-M measurement microphone (sold separately) to this balanced XLR input jack for easy calibration of your sound system using the built-in Wizards. Or use the RTA for manual adjustments and system troubleshooting. This jack supplies +15V phantom power. 2. LCD Display This LED backlit LCD display provides the visual feedback required for operating the PA2 processor from the front panel.
® 9. INPUT Meters These 6-segment LED meters display the input signal level strength and available headroom, and range from SIG (signal present) to 0 (dBFS). These meters monitor the signal level right after the A/D converter and will light when the signal level is greater than or equal to the values shown in the table to the right. Input LEDs dBFS (switch set to +4 dBu) (switch set to -10 dBV) 0 -0.1 19.9 dBu 7.7 dBV 3 -3 17 dBu 4.8 dBV 10 -10 10 dBu -2.2 dBV 15 -20 5 dBu -7.
® Rear Panel 1 4 120V 5 50/60Hz 2 3 6 1. IEC AC Power Inlet Connect the included IEC power cord to this power inlet. The DriveRack PA2 ships from the factory configured for one of two specified power voltage ranges, they are: • 100-120V, 50Hz/60Hz • 220-240V, 50Hz/60Hz Note: Ensure the screening under this outlet matches the voltage specification in your country before applying power to the PA2. 2.
® 6. Input Switches These switches are recessed to prevent accidental switching. You may need to use the tip of your fingernail or an object with a pointy tip, such as a pen, to activate these switches. • +4dBu/-10dBv Switch This switch sets the PA2’s input sensitivity. Select the +4dBu option (switch out) when connecting a mixer or device which has a nominal output operating level of around +4dBu.
® Installing The DriveRack PA2 Installation Recommendations FOR RACK MOUNT USE ONLY. Install the PA2 in your 19” rack with the provided rack screws. When installed in a rack, make sure there is proper ventilation. The sides and back of the device should be free of any obstruction that would prevent airflow. The PA2 should not be mounted above or below anything that generates excessive heat. Ambient temperatures should not exceed 950 F (350 C) when equipment is in use.
® Network Connections Wired Ethernet Switch 1. Download and install the free DriveRack PA2 control app from the iTunes Store, the Android® Market, or from www. dbxpro.com. DriveRack PA2 ® 120V 50/60Hz 120V 50/60Hz Ethernet Switch With DHCP Enabled 2. Connect a straight-through CAT5e or CAT6 Ethernet cable (sold separately) to the Ethernet port on the DriveRack PA2. 3.
® Applying Power 1. Ensure your power amplifiers or powered speakers are turned off. 2. Make sure that the included IEC power cable provided with your PA2 has the proper connector for connection to your AC power outlet and that the power screening under the IEC power inlet on the back panel of the PA2 matches your country’s voltage requirements. 3. Connect the power cable to the AC power inlet on the PA2’s back panel. 4.
® Getting Started Menu Navigation Overview The DriveRack PA2’s user interface was carefully designed to provide logical navigation and avoid deeply nested menus. The menu navigation is laid out as shown in the below diagram.
® Operating Modes Explained This section describes the different operating modes available in the DriveRack PA2 and how to enter each mode. Home Mode This is the default operating mode. It is the mode the DriveRack PA2 enters when it initially boots and is the mode which displays the selected Home screen. From any menu, you can get back to Home mode by repeatedly pressing the BACK button.
® The Home Screens The Home screen is the first screen which appears in the LCD display after the DriveRack PA2 fully initializes (this is also referred to as “Home mode”). There are four Home screens to choose from, providing the instant visual feedback you need, when you need it. All Home screens will display the currently loaded preset number and name, so you always know which preset is currently loaded. To toggle between Home screens, simply press the DATA WHEEL from Home mode.
® Configuring The DriveRack PA2 This section of the manual describes how to configure the DriveRack PA2 for your application. The easiest way to configure the PA2 is to use the built-in Wizards. However, for the veteran sound engineers and DriveRack power users, the PA2 can also be configured and tweaked manually. Power users can create the basic configuration using the Setup Wizard, or load an existing preset, then tweak the parameters as necessary from there.
® RUN AutoEQ/LEVEL ASSIST Right Speaker Left Speaker Right Speaker 1/3rd 1/3rd 1/3rd Speakers & Mic Form an Equilateral Triangle RTA-M Mic Placement 2 RTA-M Mic Placement 1 AutoEQ Mic Position 3 (Optional) Left Speaker 1/3rd Right Speaker 1/3rd 1/3rd RTA-M Mic Placement 1 Reference AutoEQ Mic Position 4 (Optional) Left Speaker 1/3rd Right Speaker 1/3rd 1/3rd rd 1/3 The Level Assist and AutoEQ mic position 1 measurements should be taken with the microphone placed out in front of the sp
® WIZARD OPTIONS The available options in this menu are: • AutoEQ TARGET [RECOMMENDED PA CURVE, FLAT] When a sound system’s frequency response is flattened, it can sound a bit thin on the bottom end. The AutoEQ TARGET option makes up for this by adding a bass boost. Select the RECOMMENDED PA CURVE option (this is the default setting) to allow AutoEQ to automatically enhance the low end. Select the FLAT option if you want the system to be tuned flat when running the AutoEQ Wizard.
® About Speaker & Amplifier Tunings The PA2 has a Setup Wizard to help you configure your sound system. When you run the Setup Wizard, it will ask you to select the make and model of your speakers and amplifiers from a list of available options, referred to as “tunings”. There are speaker tunings and amplifier tunings. When you select your speakers from the tuning list, the PA2 will automatically configure the crossover, output PEQs, polarity, and in some cases, driver alignment delays.
® Manual System Optimization Tips Hint: You may want to disable the TIME OUT feature located in the Utility menu before performing any of the following system optimization procedures. This will ensure the PA2 does not revert back to the Home screen throughout the process. See ‘Utility’ on page 46 for more information on disabling this feature. 1.
® subs, you can perform the same test between the low driver in the main speaker and sub to ensure polarity for all drivers are matched. You will also want to make sure that all drivers/speakers reference absolute polarity. This means that all drivers would push outwards then inwards during each cycle. If the absolute polarity is reversed, the drivers would move in the opposite order (inwards then outwards).
® devices, turning down the amplifier input attenuators does not change the potential output of the amplifier – it only requires more input voltage to get full output power. Many amplifiers will clip with an input level greater than +6 dBu when the input attenuators are turned all the way up. Most mixing consoles can deliver well over +18 dBu of output level before clipping.
® 6. Raise the mixer’s main output faders until the INPUT CLIP LEDs on the PA2 just begin lighting. 7. Now, go to each amp channel and slowly raise its attenuator until the amp channel’s clip LED just begins to light. 8. Go into one of the PA2’s limiter modules. Turn the limiter on and slowly lower the THRESHOLD parameter until the corresponding amp channel’s clip LEDs just stop lighting.
® 5. EQ The System At The Venue Now that the system is optimized for use, it’s time to EQ the sound system at the venue. The PA2’s built-in AutoEQ Wizard does a great job of equalizing your sound system in a timely manner so we recommend using it. You can alter the parametric EQ settings generated by AutoEQ or tailor the equalization of the system using the built-in GEQ (Graphic EQ) – this will leave your automatically generated AutoEQ settings intact.
® further information on the available AFS TYPE options. 8. Go to the FIXED FILTERS parameter and set it to 12. 9. Ensure no sound is present at any of the microphones then slowly raise the main mixer faders until you reach your target gain (described in step 1) or run out of Fixed filters, whichever happens first, then lower the main mixer faders back to performance level (the level at which you had the mixer’s main faders during sound check in step 1). 10.
® Operating The DriveRack PA2 This section of the manual describes how to operate the DriveRack PA2 after you have initially configured and optimized the system using the Wizards. This includes editing parameters and managing presets. Editing Parameters To edit a processing module’s parameters: 1. Press the module’s button (e.g., GEQ, AFS, SUB, etc.). 2. Some menus will offer a list, depending upon the currently loaded configuration, where you can select which module you want to edit.
® Managing Presets The DriveRack PA2 has two types of presets: user and factory. The user presets occupy preset memory locations1-75. The factory presets occupy preset memory locations 76-100. The difference between these preset types is that factory presets are meant to be used as templates and cannot be overwritten and user presets can be overwritten and are designed to store your custom presets.
® Storing Presets Once you are satisfied with the changes made to a factory or user preset, you are ready to store the changes to a user preset memory location. The STORE button is used to store modifications made to a preset. To store a preset: 1. Press the STORE button. You are now in Preset Store mode. 2. The current name of the preset will be shown in the LCD display and you now have the option to keep the name or rename the preset. If you do not wish to rename the preset proceed to step 3.
® The PA2 Processing Modules & Parameters This section of the manual provides descriptions of all the processing modules available in the DriveRack PA2 and their associated parameters. Graphic EQ (GEQ) The 31-band GEQ module lets you manually tune the sound system’s frequency response and is meant to be used alone or alongside the AutoEQ PEQ (which is set when you run the AutoEQ). In previous DriveRack models, the GEQ was set when you ran the AutoEQ.
® • MYBAND This option is optimized for live music performance using a portable PA system in small to medium sized venues (small coffee shops or clubs for example). It offers some low-end boost with low-mid cut, which enhances the low end while preventing the system from sounding too muddy. The high end is slightly attenuated to remove any harshness and further help optimize gain before feedback. • SPEECH This option is optimized for speech sound reinforcement.
® Parametric EQ (AutoEQ, HIGH, MID, LOW PEQ) There are two types of PEQs available in the PA2: the AutoEQ PEQ and the output PEQs (labeled LOW, MID, and HIGH). The AutoEQ PEQ is an 8-band parametric EQ which resides in the input processing side of the PA2 (pre crossover) and is automatically adjusted by the built-in AutoEQ Wizard. In most cases you will likely just look at the settings in the AutoEQ PEQ to see how the system was equalized after running the AutoEQ Wizard.
® • BAND(1-8) FREQUENCY [20 Hz - 20 kHz] This parameter adjusts the center/cutoff frequency of the selected EQ band. • BAND(1-8) GAIN [-12 dB - +12 dB] This parameter adjusts the gain of the selected EQ band. • BAND(1-8) Q [0.1 - 15.909] This parameter is only available with BELL type filters and adjusts the width of the selected PEQ filter. Lower Q settings provide wider filters, affecting a wider range of frequencies when adjusted.
® Advanced Feedback Suppression (AFS) Feedback is caused when an in-phase audio loop is created between an input transducer (such as a guitar pickup or microphone) and an output transducer (a loudspeaker). The DriveRack PA2 includes the exclusive AFS™ (Advanced Feedback Suppression™) algorithm to help combat this dreadful phenomenon. The AFS algorithm in the PA2 is a little different than the AFS algorithm used in any previous dbx products.
® HINT: AFS works best when the signal entering the PA2’s inputs is sufficient. This requires proper gain staging between the mixer and PA2. If the signal level is too low, AFS may be slow to respond to feedback. See ‘Manual System Optimization Tips’ on page 18 for further information on gain structure and ringing out the system with AFS. NOTE: Signals sent to the PA2’s LEFT and RIGHT inputs are summed to mono before entering AFS for analysis.
® begin to round robin – meaning that if all Live filters have been set and new feedback occurs, the first Live filter set will be released then re-set at the new feedback frequency location. The Live filters can be set to release after a period of time by enabling the LIVE LIFT option and adjusting the LIFT AFTER parameter. Note that when you run the AFS Wizard, AFS will automatically switch between Fixed and Live mode operation behind the scenes.
® Hint: Since it’s not really possible to predict exactly how many Fixed filters you may need, a good setting to start with is the default setting of 6. If after ringing out the system, you feel you need to squeeze a little more gain out of the system before feedback, you can increase the FIXED FILTERS setting and run the AFS Wizard again or manually ring out only the newly added Fixed filters in the AFS menu.
® Subharmonic Synthesis (SUB) dbx’s 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, music recording, live music performance, and broadcasting.
® NOTE: If you experience low-frequency artifacts on a voice when using subharmonic synthesis, try engaging a high pass filter, using EQ, or a combination thereof on the vocal’s mixer channel to reduce the artifacts. If a high pass filter and EQ are not enough, try lowering the overall amount of Subharmoic Synthesis applied to the signal by adjusting the SUBHARMONICS parameter. NOTE: The left and right input signals are summed to mono before the subharmonic synthesizer processes the audio.
® Compressor (COMP) A compressor is used to compress the dynamic range of the audio signal, bringing up the lower level portions of the signal and restricting the higher level portions of the signal. In live sound applications, it is common to compress the audio at different stages in the signal chain. For example, you may apply compression to individual instruments using the mixer’s insert points and/or a group of instruments using the mixer’s bus or group inserts.
® a 2:1 ratio would allow the output signal level to increase by only 1 dB for every 2 dB of level increase over threshold. In other words, 1 dB of compression will be applied for every 2 dB increase in level above threshold. For light compression, choose a lower ratio. For heavy compression increase the ratio. A ratio setting of about 10:1 or higher essentially turns the compressor into a limiter. Typically, a setting of 1.
® Delay There are two different delay module types available in the PA2, they are: the input (also known as pre or backline) delay module and the output (also known as driver alignment) delay module. The output delay modules (labelled HIGH, MID, and LOW) are used to time align loudspeaker drivers which require it. Typically, driver alignment delay is only required when configuring a bi-amplified (2-way) or tri-amplified (3-way) system.
® LOW DELAY for the LOW outputs. If you’ve configured a 3-way system, you will see an additional MID DELAY for the MID outputs. Turn and press the DATA wheel to select the desired delay module. Turn the DATA wheel to scroll through the list of parameters. Press the DATA wheel to edit a selection. When in a Delay menu, pressing and holding the DELAY button for approximately 2 seconds will advance to the next delay module, wrapping around through the available modules.
® Crossover (XOVER) A crossover is used to divide the broadband signal into separate frequency bands. This allows you to drive each loudspeaker or driver in a sound system within its optimal frequency range. Using an active crossover, like that in the PA2, has the additional benefits of increasing the efficiency of your power amplifiers, lowering intermodulation distortion, and in some cases, improving the drivers’ transient response.
® summed, a 3 dB increase in level will be created at the crossover frequency. LR stands for Linkwitz-Riley. When two Linkwitz-Riley filters are summed, there is no increase in level around the crossover frequency, which makes these type of filters very popular. The numbers represent the slope rate per octave. • POLARITY [NORMAL, INVERTED] Inverts the polarity of the selected PA2 outputs. Polarity inversion is used to match driver polarity in systems which require it.
® Limiter Limiters are used to set a ceiling on the signal level, preventing the signal from exceeding a predetermined threshold. For this reason, they are used to prevent the overdriving of equipment. Limiters are compressors with high ratios (typically, a ratio of around 10:1 or higher). The ratio controls in the PA2 limiter modules are fixed at infinity:1.
® • THRESHOLD [-60 dB to 0 dB] This parameter sets the level at which the limiter will kick in and begin limiting the signal. The limiter Threshold Meters (shown to the right) indicate when signal is below threshold, above threshold, or in the OverEasy region. For example, if the threshold parameter is set to -17 dB, any signal which exceeds -17 dBFS will be limited, while any signal lower than -17 dBFS will be left alone.
® RTA The 31-band RTA (Real-Time Analyzer) module allows you to monitor frequency levels. This information can help with identifying system issues – such as improperly set crossover settings, blown drivers, or driver/speaker dependent level issues. It can also be used when manually tuning the sound system. RTA Parameters The RTA menu can be accessed by pressing the RTA button. Turn the DATA wheel to scroll through the list of parameters. Press the DATA wheel to edit a selection.
® Utility The Utility menu allows you to edit global system parameters and provides system information. Utility Parameters The Utility menu is accessed by pressing the UTILITY button. Turn the DATA wheel to scroll through the list of parameters. Press the DATA wheel to edit a selection. • SYSTEM INFO Selecting this option displays important PA2 system information, such as the currently installed firmware version, network IP address, and Mac address.
® Power-Up Functions Power-up functions allow you to reset DriveRack PA2 presets and settings, lock out the front panel controls, and configure the PA2 to always power up with the output mutes enabled. These power-up functions are accessed by pressing and holding certain buttons upon power-up. The following section describes the power-up functions available in the PA2 and how to use them. Initialize With Mutes On This power-up function forces the PA2 to boot up with all outputs initially muted.
® System Lockout This power-up function locks out the PA2’s front panel controls to prevent unauthorized tampering. The following options are available: • System Unlocked This is the default setting and allows access to all PA2 functions from the front panel controls. • System Locked When this option is selected, all front panel controls will be locked and a “LOCKED” message will appear in the LCD display whenever any button is pressed or the DATA wheel is turned.
® Factory Reset The Factory Reset function resets all user presets and Utility settings in the PA2 back to their factory default state. Warning! Performing the Factory Reset procedure will permanently reset all user presets and set all PA2 settings back to their factory default state. This operation is irreversible. To perform a Factory Reset: 1. Power down the DriveRack PA2. 2. Press and hold the STORE button then apply power to the DriveRack PA2.
® Application Guide This section of the manual shows the various ways in which the DriveRack PA2 can be configured and provides system diagrams and application notes for each application type. Use these diagrams and notes for reference when initially connecting and configuring the DriveRack PA2 for your application. Full Range Application 1 (Standard) This application is suited for full range systems which do not require an active crossover.
® Full Range Application 2 (Sub-Satellite System) The full range application may also be used for some 2-way powered sub-satellite speaker systems, where you have a pair of powered mains and one or two powered subwoofers which are part of the same product series and are meant to be integrated together. These type of integrated powered speaker systems are designed by the manufacturer to be easy to setup and use.
® Full Range Application 3 (All Outputs Full Range) Some full range systems may require more than two full range outputs from the PA2. The PA2 can accommodate these systems as well, but such systems are atypical and cannot be properly configured using the PA2’s Setup Wizard alone.
® 2-Way Application This application is suited for systems using full range main speakers along with subs or for systems using bi-ampable main speakers with no subs.
® 3-Way Application This application is suited for systems using bi-ampable main speakers along with subs. In this type of application, the PA2 will split the signal into three frequency bands and send all the low frequencies out the LOW outputs to the subs, all the mid frequencies out the MID outputs to the woofers in the mains, and all the high frequencies out the HIGH outputs to the high frequency drivers in the mains.
® Preset List User Preset # Factory Preset # Name Description 1, 26, 51 76 ST.Full Range Stereo Full Range 2, 27, 52 77 M.FullRange Mono Full Range 3, 28, 53 78 ST.2WaywST.Sub Stereo 2-Way with Stereo Subs 4, 29, 54 79 ST.2WaywM.Sub Stereo 2-Way with Mono Sub 5, 30, 55 80 M.2WaywST.Sub Mono 2-Way with Stereo Subs 6, 31, 56 81 M.2WaywM.Sub Mono 2-Way with Mono Sub 7, 32, 57 82 ST.3WaywST.Sub Stereo 3-Way with Stereo Subs 8, 33, 58 83 ST.3WaywM.
® DriveRack PA2 Control Application The DriveRack PA2 control application is available for Android®, iOS®, Mac®, and Windows® PC devices. This application is available for free and can be downloaded from www.dbxpro.com, the iTunes® Store, or the Android® Market.
® Networking Networking Overview The PA2 can be network controlled with the use of a network switch or router which has a built-in DHCP server. DHCP (Dynamic Host Configuration Protocol) is a protocol for automatically assigning IP addresses to devices on a network. The DHCP server is required to assign an IP address to the DriveRack PA2. Note: The DriveRack PA2 does not support control via a proxy or VPN connection.
® 3. Check The Type Of Ethernet Cables Used Ensure you are using the correct type of Ethernet cables with your switch/router and that they are fully inserted into the Ethernet connectors. See ‘Cable Diagrams’ on page 61 for detailed information on supported Ethernet cables. If you’ve verified you are using the correct type of Ethernet cables and all cables are known-working, but you still can’t connect, go to step 4. 4.
® Technical Information Firmware Updates The USB or Ethernet connector on the back panel of the PA2 can be used to perform firmware updates. Connect the USB port to a Windows® PC for performing firmware updates using the PA2 Firmware Update Utility application. The latest PA2 Firmware Update Utility application will be made available on the DriveRack PA2 product page at www.dbxpro.com as updates become available.
® Mute Mute Mute Right Low Output Left Low Output Right Mid Output Left Mid Output Right High Output Left High Output Output Meters DSP Block Diagram Mute Mute Mute Alignment Delay Alignment Delay Alignment Delay PeakPlus Limiter PeakPlus Limiter PeakPlus Limiter 8-Band PEQ 8-Band PEQ 8-Band PEQ Crossover w/Polarity Pre Delay Compressor Subharmonic Syntesizer Advanced Feedback Suppression AutoEQ 8-Band PEQ Real Time Analyzer (RTA) 31-Band Graphic Equalizer (Stereo or Dual Mono)
® Cable Diagrams Ethernet Cable Diagrams Straight-Through Use straight-through CAT5e or CAT6 Ethernet cables to connect the PA2 to your network switch/router. The below diagrams show the pinout of such cables. These are the most common type of Ethernet cables available.
® Audio Cable Diagrams TO NEXT DEVICE (INPUT) FROM SOURCE DEVICE (OUTPUT) SLEEVE (GROUND) 2 3 1 RING (COLD -) SLEEVE (GROUND) HOT + HOT + COLD - SLEEVE SLEEVE FEMALE XLR TO TRS PHONE SLEEVE (GROUND) SLEEVE (GROUND) COLD - 2 TO NEXT DEVICE (INPUT) FROM SOURCE DEVICE (OUTPUT) RING (COLD -) HOT + HOT + 2 SLEEVE 3 1 1 SLEEVE COLD - 3 2 TIP (HOT +) TIP (HOT +) TRS PHONE TO TRS PHONE FEMALE XLR TO MALE XLR TO NEXT DEVICE (INPUT) FROM SOURCE DEVICE (OUTPUT) SLEEVE (GROUND) HOT
® Dimensions 17.25” 19” 5.875” 1.
® Specifications ANALOG INPUTS Number of Inputs: Connectors: Type: Impedance: Max Input Level (line inputs): CMRR: RTA Mic Preamp Phantom Power: 2 line inputs, 1 RTA mic input 2 female XLR line inputs, 1 female XLR RTA mic input Electronically balanced/RF filtered > 50 kΩ > +20 dBu > 45 dB +15 VDC ANALOG OUTPUTS Number of Outputs: Connectors: Type: Impedance: Max Output Level: Alignment Delay: 6 line outputs Male XLR Electronically balanced, RF filtered 120 Ω +20 dBu Up to 10ms per output channel pair
® Additional Resources dbx Website http://www.dbxpro.com DriveRack PA2 Product Page http://www.dbxpro.com/en-US/products/driverack-pa2 dbx Support http://www.dbxpro.com/en-US/support dbx User’s Forum http://www.dbxpro.
10653 South River Front Parkway, #300 South Jordan, Utah 84095 Phone: (801) 566-8800 Website: www.dbxpro.com Support: http://www.dbxpro.com/en-US/support dbx Professional Products is a registered trademark of Harman © 2014 Harman All rights reserved DriverRack® PA2 Owner’s Manual PN: 5044138-A Macintosh, iOS, iPhone, iPad, iTunes, and App Store are trademarks of Apple Computer Incorporated, registered in the U.S. and other countries. Windows is a registered trademark of Microsoft Corporation in the U.S.
