PRESONUS Audiobox USB Quick Start Manual
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PRESONUS Audiobox USB Quick Start Manual

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Summary of Contents for PRESONUS Audiobox USB

  • Page 1: Audiobox Usb

    AudioBox ™ Quick Start Guide ® www.presonus.com...

  • Page 2: Important Safety Instructions

    Read these instructions. normally, or has been dropped. All PreSonus products Keep these instructions. in the USA should be serviced at the PreSonus factory in Baton Rouge, Louisiana. If your product requires a Heed all warnings. repair, contact support@presonus.com to arrange for a Follow all instructions.
  • Page 3 EU Directives on the Protection WEEE This symbol on the product or its packaging indicates that this product of the Environment and must not be disposed of with other waste. Other Euro Stuff Instead, it is your responsibility to dispose of your waste equipment by handing it RoHS This product is compliant with the EU Directive over to a designated collection point for the...
  • Page 4 This section walks you through it. Want to Learn More? Want to read all about your AudioBox USB’s tech specs? Dying to be the Studio One guru in your neighborhood? Can’t wait to learn the secrets of microphone placement, compressors, and...
  • Page 5 A Quick Note About This Quick Start Guide: This Quick Start Guide is written to help you get acquainted with your AudioBox USB. Complete information is in the Owner’s Manual located on your AudioBox Driver disc. We suggest that you use the Owner’s Manual to familiarize yourself with the features, applications, and...

  • Page 6: Phones Level

    PreSonus AudioBox Hook Up your AudioBox USB ™ Front Panel Connections Hook Up your AudioBox USB Front Panel Connections Microphone / Instrument Preamps. Each channel of the AudioBox USB has a microphone preamp and an instrument preamp. The Power LED. This...

  • Page 7: Usb Connection

    Quick Start Guide Hook Up your AudioBox USB Rear Panel Connections Rear Panel Connections Main Outputs. MIDI In and This is where you ¼” Stereo USB Connection. connect your Headphone Out Ports. The studio monitors This is where you MIDI inputs and Output.

  • Page 8: Basic Hookup Diagram

    PreSonus AudioBox Hook Up your AudioBox USB ™ Basic Hookup Diagram Basic Hookup Diagram AUDIOBOX USB Power Clip Clip INPUTS PLAYBACK Mic•Instrument headphones guitar vocal mic Designed by PreSonus in the USA. Manufactured in PRC. MIDI PHONES computer midi monitors Consult your Owner’s Manual (on disc) for more information on your...

  • Page 9: Install The Audiobox Driver

    Mac® Users: The AudioBox USB is a class-compliant Core Audio device. No installation is necessary on Mac computers. Simply connect your AudioBox USB to your Mac to begin using it. Installing the Driver (Windows® Only) For step-by-step instructions on installing the AudioBox USB driver and control panel on your Windows system, please see Section 3 in your AudioBox Owner’s Manual.

  • Page 10: Install And Authorize Studio One Artist

    Install and Authorize Studio One Artist For complete information on using, installing and authorizing Studio One see Section 4 in your AudioBox USB Owner’s Manual or Studio One User Manual (located in the Studio One Help menu). Your AudioBox USB comes with Studio One Artist recording and production software.
  • Page 11 Make sure that your computer is connected to the Internet. (For instructions on authorizing Studio One without an Internet connection, please consult Section 4.1 of the AudioBox USB manual. Launch the Studio One Artist program by double-clicking on its icon on your desktop or in your applications folder.
  • Page 12 Fill out the form, making sure that your email is correct. When you are finished, click Register. Write down the username and password you chose. This is the information you will use to register all your PreSonus products as well as to log into the PreSonus forum. USERNAME _______________________...
  • Page 13 Quick Start Guide Install and Authorize Studio One Artist Installing the Studio One Artist Content Enter the username and password you just created and the product key from your Studio One Artist installation disc. Click on the Activate button to finish the activation process. Installing the Studio One Artist Content Studio One Artist comes with many audio loops and instruments that are organized into Soundsets, as well as demo...
  • Page 14 PreSonus AudioBox Install and Authorize Studio One Artist ™ Installing the Studio One Artist Content To install any of the third-party content, click on the arrow button next to its name in the content list (Celemony Melodyne Trial, Native Instruments Komplete Player) to launch its installer.

  • Page 15: Set Your Levels And Record

    A. Sound sources (guitars, microphones, etc.) connected to the AudioBox inputs B. AudioBox USB and computer C. Power amplifiers or powered monitors When it’s time to power down, your system should be turned off in the reverse order.

  • Page 16: Creating A Monitor Mix

    If you’re using passive speakers, connect them to your power amplifier using speaker cable. If your microphone requires phantom power, press the 48V button on the front panel. Turn on your amplifier or powered monitors. Connect a pair of headphones to your AudioBox USB.
  • Page 17 Creating a Monitor Mix Launch Studio One Artist. NOTE: The rest of this section describes using your AudioBox USB with Studio One Artist. However, most of these steps can be generally applied to any DAW. Consult the documentation that came with your DAW for specific application instructions.
  • Page 18 PreSonus AudioBox Set your Levels and Record! ™ Creating a Monitor Mix 14. Turn the AudioBox Phones volume control to the 12 o‘clock position. 15. Click on the MIX button to open the Console in Studio One 16. Speak into the microphone while watching the meter on Channel 1 in Studio One and slowly turning the AudioBox Input 1 Trim knob clockwise.
  • Page 19 Quick Start Guide Set your Levels and Record! Creating a Monitor Mix 17. Turn the Mixer knob on the front panel of your AudioBox to the 12 o’clock position. This will allow you to hear both your inputs and the playback from the computer. You are now ready to record. 18.

  • Page 20: Want To Learn More

    ™ 5.0 Want to Learn More? AudioBox USB Information Complete information about your AudioBox USB can be found in the Owner’s Manual. Your Owner’s Manual is located on the AudioBox installation disk. The AudioBox USB Owner’s Manual contains complete operating instructions for your interface.

  • Page 21: Cooking Instructions

    © 2012 PreSonus Audio Electronics, Inc. All Rights Reserved. AudioBox, DigiMax, FireStudio, Nimbit, PreSonus, QMix, StudioLive, and XMAX are trademarks or registered trademarks of PreSonus Audio Electronics, Inc. Capture, Impact, Mixverb Presence, RedLightDist, SampleOne, Studio One, and Tricomp are trademarks or registered trademarks of PreSonus Software Ltd.

  • Page 22: Emc Statement

    • Consult the dealer or an experienced radio/TV technician for help. CAUTION: Changes or modifications to this device not expressly approved by PreSonus Audio Electronics could void the user’s authority to operate the equipment under FCC rules. This apparatus does not exceed the Class A/Class B (whichever is applicable) limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications.
  • Page 23 AudioBox ™ Owner’s Manual English Español Deutsch ® Français www.presonus.com...
  • Page 24 CAUTION: To reduce the risk of electric shock, do not expose this normally, or has been dropped. All PreSonus products in the USA appliance to rain and moisture. The apparatus shall not be should be serviced at the PreSonus factory in Baton Rouge, Louisiana.

  • Page 25: Troubleshooting And Warranty

    Installation for Windows — 9 Leave the Rest — 44 Installation for Mac OS X — 11 5.3.3 General EQ Suggestions — 47 Using the AudioBox USB with Popular Digital Effects — 50 Audio Applications — 11 5.4.1 Reverb — 50 Windows Control Panel —...
  • Page 26 PreSonus AudioBox ™ Current Section Current Sub Section...
  • Page 27 Throughout this manual you will find Power User Tips that can quickly make you an AudioBox USB expert. In addition to the Power User Tips, you will find an assortment of audio tutorials at the back of this manual. These tutorials cover everything from...

  • Page 28: Summary Of Studio One Artist Software Features

    • Mac OS X®- and Windows®-compatible Summary of Studio One Artist Software Features All PreSonus audio interfaces include PreSonus Studio One Artist recording software, which comes with more than 6 GB of plug-ins, loops, and samples, giving you everything you need for music recording and production. The Studio One Artist Quick Start Guide is located in Section 4.1 of this manual.

  • Page 29: What Is In The Box

    What is in the Box Your AudioBox USB package contains the following: PreSonus AudioBox USB recording interface 6’ (1.8m) USB cable Software library containing • PreSonus Studio One Artist program DVD plus gigabytes of third-party content • AudioBox driver and manual CD...

  • Page 30: Front Panel Connections

    Active instruments should be plugged into a line input rather than into an instrument input. Plugging a line-level source into the instrument inputs on the front of the AudioBox USB not only risks damage to these inputs but also results in a very loud and often distorted audio signal.
  • Page 31 Owner’s Manual Hookup Front-Panel Connections Input Gain/Trim Control. These knobs provide the following gain structure: • XLR Microphone Instrument inputs: 40 dB of variable gain (-10 to +30 dB) • TS ¼-inch Instrument Level inputs: 60 dB of variable gain (0 dB to +60 dB) Clip Indicator.

  • Page 32: Rear Panel Connections

    ¼-inch Phones (headphone) Jack. This is where you connect headphones to your AudioBox USB. Main Out. These are the main outputs for the AudioBox USB. The output level of the Main Outs is controlled by the Main volume knob on the front of the unit.
  • Page 33 Owner’s Manual Hookup Basic Hookup Diagram Basic Hookup Diagram AUDIOBOX USB Power Clip Clip INPUTS PLAYBACK Mic•Instrument headphones guitar vocal mic Designed by PreSonus in the USA. Manufactured in PRC. MIDI MAIN OUT PHONES computer midi monitors...

  • Page 34: Connecting To A Computer

    ™ Connecting to a Computer System Requirements Connecting to a Computer Your AudioBox USB is a rugged USB 1.1 audio interface with zero- latency analog monitoring control and professional audio tools. System Requirements Below are the minimum computer-system requirements for PreSonus Studio One Artist and AudioBox USB.*...

  • Page 35: Installation For Windows

    Installation for Windows The AudioBox installer requires that your AudioBox USB be connected to your computer. Connect your AudioBox USB to an available USB port and insert the Installation CD into your disc drive. The AudioBox installer will auto-launch and take you through each step of the installation process.

  • Page 36: Installation For Mac Os X

    AudioBox USB is now ready to use! Installation for Mac OS X Your AudioBox USB is a class-compliant Core Audio device. No installation is necessary on Mac computers. Simply connect your AudioBox USB to your Mac to begin using it.
  • Page 37 6. You will be asked if you’d like to relaunch Logic. Click “try (re)launch. ” 7. Your AudioBox USB features custom I/O labels for faster workflow. To enable these labels for use in Logic, go to Options | Audio | I/O Labels.
  • Page 38 7. Highlight all input and output drivers beginning with “PreSonus AudioBox USB.” 8. Go to Options | Audio... and click on the General tab. 9. Set the Playback Timing Master to “PreSonus AudioBox USB... DAW Out 1. ” 10. Set the Recording Timing Master to “PreSonus AudioBox USB... Mic/Inst 1. ”...

  • Page 39: Windows Control Panel

    DAW application. Run at Startup Launches the AudioBox USB Control Panel Automatically on Startup. When this is enabled, the AudioBox USB Control Panel will automatically launch each time you boot your Windows. Sample Rate Selector Changes Sample Rate.

  • Page 40: Studio One Artist Quick Start

    Installation and Authorization Once you have installed the AudioBox USB drivers and connected your AudioBox USB to your computer, you can use the included PreSonus Studio One Artist music-production software to begin recording, mixing, and producing your music. To install Studio One Artist, insert your installation disc into your computer’s DVD drive.
  • Page 41 Your username and password will also provide you with access to the PreSonus user forums to chat with other PreSonus users as well as PreSonus employees. 4. Once your user account has been successfully created, you will be alerted that the activation email has been sent to the email address that you provided.
  • Page 42 Activating Studio One Artist Offline 1. If your computer is not connected to the Internet, visit http://www.presonus.com/registration/ on an Internet- connected computer to create your account. 2. Once you have created your user account, log in and click on the Software Registration link.
  • Page 43 Owner’s Manual Studio One Artist Installation and Authorization 5. Click on the “Download License” link. A file called “Studio One 2 Artist.license” will be saved onto your computer. You will need to copy this onto a piece of removable media and transfer it onto the computer on which you want to run Studio One Artist.
  • Page 44 PreSonus AudioBox ™ Studio One Artist Installation and Authorization 2. At the top of the installation menu, select the source from which the content will be installed, as well as the location where you wish to install the content. The source of the content will be the same DVD from which you installed Studio One Artist.

  • Page 45: Enabling The Audio Driver

    Enabling the Audio Driver Studio One Artist was designed with PreSonus interfaces in mind, so AudioBox USB setup is quick and easy. When Studio One Artist is launched, by default you will be taken to the Start page. On this...

  • Page 46: Configuring Midi Devices

    1. Connect the MIDI Out of your external MIDI controller to a MIDI In on your AudioBox USB or other MIDI interface. If you are using a USB MIDI controller, connect it to your computer and power it on.
  • Page 47 USB. In the Send To drop-down menu, select the MIDI interface output (AudioBox USB) from which Studio One Artist will send MIDI data to your keyboard. If your keyboard controller does not need to receive MIDI data from Studio One, you can leave this unselected. If your keyboard does need to receive MIDI data, you must connect a MIDI cable from the MIDI Out of the MIDI interface to the MIDI In of the keyboard.
  • Page 48 1. Connect the MIDI In of your external sound module to the MIDI Out of your AudioBox USB or other MIDI interface. 2. In the External Devices window, click the Add...
  • Page 49 AudioBox USB. In the Receive From drop-down menu, select the MIDI-interface output (AudioBox USB) from which Studio One Artist will receive sound-module MIDI data. If your sound module will not need to send information to Studio One, you can leave this unspecified.

  • Page 50: Creating A New Song

    You’ll notice a list of templates on the left. The AudioBox USB template will create a Song with a track for each of the AudioBox inputs. Every track is armed for recording, and no further setup is required.
  • Page 51 I/O Setup. ” 9. We recommend that you create a mono input for each of the inputs on your AudioBox USB. If you plan on recording in stereo, you should also create a stereo bus and assign it to the appropriate set of inputs.

  • Page 52: Creating Audio Tracks

    5. To begin recording, create an audio track, assign it to Input 1, and connect a microphone to the first channel on the AudioBox USB. Select Record Enable on your track in Studio One Artist. Turn up the Channel 1 level while speaking/singing into the microphone.

  • Page 53: Audio Input

    Owner’s Manual Studio One Artist Creating MIDI Tracks Anatomy of an Audio Track Solo Level Mute Meter Rec Arm ST/Mono Audio Input Mon (In S1) Creating MIDI Tracks 1. Click on the Add Tracks button. When the Add Tracks window launches, select Instrument as the track format and click the OK button.

  • Page 54: Adding Virtual Instruments And Plug-In Effects To Your Song

    PreSonus AudioBox ™ Studio One Artist Adding Vitrual Instruments and Effects to Your Song 6. At the bottom of the Inspector menu, you will see your Bank and Program selections. From here, you can remotely change the patch on your sound module.
  • Page 55 Owner’s Manual Studio One Artist Adding Virtual Instruments and Plug-in Effects to Your Song Drag-and-Drop Effects To add a plug-in effect to a track, click the Effects button and select the plug-in or one of its presets in the effects browser, then drag the selection over the track to which you would like to add the effect.

  • Page 56: Usb Microphones And Other Types

    The AudioBox USB sends 48 VDC phantom power from the XLR inputs only. 5.1.2...

  • Page 57: Microphone Placement

    Microphone Placement The following are a few recording applications to help you get started with your AudioBox USB. These are by no means the only ways to record these instruments. Microphone selection and placement is an art. For more information, visit your library or local bookstore, as there are many books and magazines about recording techniques.
  • Page 58 Place a dynamic microphone an inch or two away from the speaker and connect it to a AudioBox USB microphone input. Connect the line output from the passive direct box to the other microphone input on your AudioBox. Be sure to keep the trim level for this input very low so as not to clip the converters.
  • Page 59 Owner’s Manual Tutorials Microphone Types Drum Overheads (XY example) Place two small-diaphragm condenser microphones on an XY stereo-microphone holder (bar). Position the microphones so that each one is at a 45-degree angle, pointed down at the drum kit, approximately 7 or 8 feet above the floor or drum riser.

  • Page 60: A Brief Tutorial On Dynamics Processing

    A Brief Tutorial on Dynamic Processing A Brief Tutorial on Dynamics Processing Studio One Artist software is included with the AudioBox USB. This powerful DAW includes an assortment of dynamics plug-ins. What follows is an excerpt from a brief tutorial on dynamics processing written by PreSonus president and founder Jim Odom.

  • Page 61: Types Of Dynamic Processing

    Owner’s Manual Tutorials A Brief Tutorial on Dynamic Processing Why do the best consoles in the world put compressors on every channel? The answer is simply that most instruments need some form of compression, often very subtle, to be properly heard in a mix. Why do we need noise gates? Consider the compressed-vocal example discussed earlier;...
  • Page 62 PreSonus AudioBox ™ Tutorials A Brief Tutorial on Dynamic Processing How severely the compressor reduces the signal is determined by the compression ratio and compression threshold. A ratio of 2:1 or less is considered mild compression, reducing the output by a factor of two for signals that exceed the compression threshold.
  • Page 63 Owner’s Manual Tutorials A Brief Tutorial on Dynamic Processing Attack. Attack sets the speed at which the compressor acts on the input signal. A slow attack time allows the beginning envelope of a signal (commonly referred to as the initial transient) to pass through the compressor unprocessed, whereas a fast attack time immediately subjects the signal to the ratio and threshold settings of the compressor.
  • Page 64 PreSonus AudioBox ™ Tutorials A Brief Tutorial on Dynamic Processing the level of a signal by a factor of two. (e.g., if a level drops 5 dB below the expansion threshold, the expander will reduce it to 10 dB below the threshold.) Commonly used for noise reduction, expansion is very effective as a simple noise gate.

  • Page 65: Compression Settings: Some Starting Points

    5.2.3 Compression Settings: Some Starting Points The following are the compression presets that were used in the PreSonus BlueMax. We have included them as a jumping-off point for setting up compression in Studio One Artist. Vocals Soft. This is an easy compression with a low ratio setting for ballads, allowing a wider dynamic range.
  • Page 66 PreSonus AudioBox ™ Tutorials A Brief Tutorial on Dynamic Processing Left/Right (Stereo) Overheads. The low ratio and threshold in this setting gives a “fat” contour to even out the sound from overhead drum mics. Low end is increased, and the overall sound is more present and less ambient.
  • Page 67 Owner’s Manual Tutorials A Brief Tutorial on Dynamic Processing Stereo Mix Stereo Limiter. Just as the name implies, this is a hard limiter, or “brickwall, ” setting— ideal for controlling the level to a two-track mixdown deck or stereo output. Thresholdhold RatRatioio AttAttackack...
  • Page 68 PreSonus AudioBox ™ Tutorials Equalizers Equalizers Studio One Artist also includes several EQ plug-ins. Here’s a brief explanation of how an EQ functions, as well as some charts to help you navigate the frequency ranges of various instruments so you can quickly choose the best EQ settings for your recordings and live mixes.
  • Page 69 Owner’s Manual Tutorials Equalizers 5 kHz. By setting a narrow bandwidth and boosting the attack a bit, you can achieve a punchier kick drum without overpowering the rest of the mix. A broad bandwidth accentuates or attenuates a larger band of frequencies. The broad and narrow bandwidths (high and low Q) are usually used in conjunction with one another to achieve the desired effect.

  • Page 70: Equalization Settings: How To Find The Best And Leave The Rest

    PreSonus AudioBox ™ Tutorials Equalizers High Mids (2 kHz to 4 kHz). The attack portion of percussive and rhythm instruments occurs in this range. High mids are also responsible for the projection of midrange instruments. Presence (4 kHz to 6 kHz). This frequency range is partly responsible for the clarity of a mix and provides a measure of control over the perception of distance.
  • Page 71 Owner’s Manual Tutorials Equalizers Table 1 Instrument What to Cut Why to Cut What to Boost Why to Boost Human Voice 7 kHz Sibilance 8 kHz Big sound 2 kHz Shrill 3 kHz and above Clarity 1 kHz Nasal 200-400 Hz Body 80 Hz and below Popping P’s...
  • Page 72 PreSonus AudioBox ™ Tutorials Equalizers Table 2...

  • Page 73: General Eq Suggestions

    Owner’s Manual Tutorials Equalizers 5.3.3 General EQ Suggestions Studio One Artist includes two different EQ plugins, Channel Strip and Pro EQ. Like every plugin in Studio One Artist, both EQ plugins come with a complete collection of factory presets and allow you to both customize factory presets and create your own.
  • Page 74 PreSonus AudioBox ™ Tutorials Equalizers Percussion Snare LOW MID LOW MID LOW MID LOW MID ON/OFF PEAK/SHELF FREQ (Hz) GAIN ON/OFF HI/LOW Q FREQ (Hz) GAIN PEAK HI MID HI MID HI MID HI MID ON/OFF LO/HI FREQ (kHz) GAIN...
  • Page 75 Owner’s Manual Tutorials Equalizers Distorted Electric Guitar LOW MID LOW MID LOW MID LOW MID ON/OFF PEAK/SHELF FREQ (Hz) GAIN ON/OFF HI/LOW Q FREQ (Hz) GAIN PEAK HI MID HI MID HI MID HI MID ON/OFF LO/HI FREQ (kHz) GAIN ON/OFF PEAK/SHELF FREQ (kHz)

  • Page 76: Digital Effects

    PreSonus AudioBox ™ Tutorials Digital Effects Digital Effects Studio One Artist includes an array of time-based and modulation effects. What follows is a brief description of how each type works. 5.4.1 Reverb Reverberation —or reverb, as it is more commonly known—is perhaps the most widely used effect.

  • Page 77: Modulation Effects

    Owner’s Manual Tutorials Digital Effects 5.4.2 Delay A delay essentially creates an echo, although you can often use delays to create more complex time-based effects. The source signal is delayed so that it is heard later than it actually occurred. Delay Time.

  • Page 78: Technical Information

    PreSonus AudioBox ™ Technical Information AudioBox USB Specifications Technical Information AudioBox USB Specifications Microphone Preamp Type Combo, XLR, female, balanced Mic Preamp EIN -115 dB, 20 kHz BW, max gain, Rs=40Ω, A-wtd Frequency Response 14 Hz - 70 kHz, +/- 0.3 dB, unity gain THD+N 0.008%, 0 dBu, 1 kHz, unity gain, 20 kHz BW, A-wtd...
  • Page 79 Owner’s Manual Techincal Information AudioBox USB Specifications Digital: Host Interface USB 1.1 Bit Depth 24-bit Sample Rates 44.1 kHz, 48 kHz, Reference Level of 0dBFS +4 dBu ADC Dynamic Range 102 dB, 48 kHz sample rate, A-wtd DAC Dynamic Range...

  • Page 80: Troubleshooting

    You can get individual technical assistance by calling PreSonus at 1-225-216-7887, Monday through Friday, between the hours of 9 a.m. and 5 p.m. Central Time (GMT -06:00 CST). PreSonus technical support is available via email during the same hours at support@presonus.com.

  • Page 81: Presonus Audiobox Limited Warranty

    PreSonus reserves the right to update any unit returned for repair. PreSonus reserves the right to change or improve the design of the product at any time without prior notice. This warranty does not cover claims for damage due...
  • Page 82 PreSonus AudioBox ™ Index Key Filter 39 Ableton Live 12 Key Listen 38 Attack 37, 38 Audio Device Studio One Artist 19 Audio I/O Set-up Limiter 36 Studio One Artist 24–29 Logic 11 Buffer Size (see also, Latency) 13 Makeup Gain 37...

  • Page 83: Declaration Of Conformity

    Note: No product support is available when you call the number above. Refer to your Certificate of Warranty in your Owner’s Manual for PreSonus’ Product Support telephone number. Baton Rouge • USA • www.presonus.com...
  • Page 84 PreSonus AudioBox ™ Current Section Current Sub Section...
  • Page 85 © 2012 PreSonus Audio Electronics, Inc. All Rights Reserved. PreSonus, StudioLive, XMAX, QMix, and AudioBox are trademarks of PreSonus Audio Electronics, Inc.. Studio One and Capture are trademarks of PreSonus Software, Ltd. Mac is a trademark of Apple, Inc., in the U.S. and other countries. Windows is a registered trademark of Microsoft, Inc., in the U.S.
  • Page 86 • Consult the dealer or an experienced radio/TV technician for help. CAUTION: Changes or modifications to this device not expressly approved by PreSonus Audio Electronics could void the user’s authority to operate the equipment under FCC rules. This apparatus does not exceed the Class A/Class B (whichever is applicable) limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications.

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