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Mbox guide Third-Generation Mbox Technology Guide CTable of Contents Design Philosophy Behind the Third-Generation Mbox Family The Elements of a Great Audio Interface Converters Preamps Clocking Emissions Compliance The Keys to the Mbox Sound Listening Te

Third-Generation Mbox Technology Guide CTable of Contents Design Philosophy Behind the Third-Generation Mbox Family The Elements of a Great Audio Interface Converters Preamps Clocking Emissions Compliance The Keys to the Mbox Sound Listening Tests Premium Components and E ?cient Layout World-Class Clocking and Jitter-Elimination Technology Industrial and Electrical Design Power Hardware Build Expertise Signal Path Internal Layout and Routing Mbox Pro Signal Path Mbox Signal Path Mbox Mini Signal Path Additional Resources Appendix Mbox Family Speci ?cation Comparison Mbox Pro Input Frequency Response Mbox Pro Output Frequency Response Mbox Pro Input THD Mbox Pro Output THD Mbox Input Frequency Response Mbox Output Frequency Response Mbox Input THD Mbox Output THD Mbox Mini Input Frequency Response Mbox Mini Output Frequency Response Mbox Mini Input THD Mbox Mini Output THD CDesign Philosophy Behind the Third-Generation Mbox Family In designing the new Avid Mbox family of audio interfaces our industry-leading engineering team set out to create best-in-class products that would surpass their previous e ?orts in this category ??as well as those of other manufacturers To meet this goal we leveraged technology from our top-of- the-line Pro Tools HD recording systems and also drew from our extensive experience developing mobile recording solutions In addition we conducted numerous customer surveys and interviews and incorporated a broad array of user requests into the new Mbox series ??from higher audio quality and enhanced integration with Pro Tools software to a rock ? solid new chassis and ergonomic front-panel design Finally we carefully optimized each member of the Mbox family for its speci ?c function ??from serious desktop production to mobile ?eld work The Elements of a Great Audio Interface It ? s important to understand the reasons why some interfaces sound better than others even when recording at equal sample rates and bit depths Much of the answer lies in the quality of the components Converters Even if the performers instruments rooms and microphones are excellent a recording can su ?er if the interface uses poor-quality converters to convert between the analog and digital domains Low-quality converters create noise and distortion which degrade the quality of the recording Excellent converters deliver pure powerful sound even when the ?nal playback medium is only bits Preamps It ? s important to use preamps that deliver high gain without introducing unwanted noise and hiss from their internal circuitry This provides clean natural-sounding audio regardless of how much gain is required The signal-to-noise ratio expressed in negative values is an important gauge of the quality of an interface ? s converters and preamps lower more negative numbers indicate better performance Clocking Audio interfaces must clock their converters at regular intervals in order to capture sound accurately A poorly designed clock can breed jitter causing the interface to sample audio irregularly The irregularity results in audio distortion An excellent clock has minimal jitter ensuring that the digital audio converters stay rigidly time-locked and minimize related distortion Emissions Compliance An excellent audio interface will be designed and manufactured to ensure that electronic