MixPre-D User Guide and Technical Information Sound Devices, LLC E7556 State Road 23/33 • Reedsburg, WI • USA +1 (608) 524-0625 • fax: +1 (608) 524-0655 Toll-Free: (800) 505-0625 www.sounddevices.com support@sounddevices.
MixPre-D User Guide and Technical Information Table of Contents Table of Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front Panel Description . . . . . . . . . . . . . . . . . . . . . . . . Side Panels Description. . . . . . . . . . . . . . . . . . . . . . . . Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 3 4 Mic / Line Setting.
MixPre-D User Guide and Technical Information Front Panel Description 3 6 4 9 10 12 1 2 5 7 11 13 1) Link LEDs Indicates linked status of inputs. Both LEDs off: no link; Bottom LED illuminated: stereo linking; Both LEDs illuminated: MS stereo linking. See Input Linking 7) Limiter Switch Activates both the input and output limiters. Middle: (LIM) dual-mono limiter operation; Right: (LINK) stereo operation. Threshold is adjustable.
MixPre-D User Guide and Technical Information Side Panels Description 1 2 3 1 4 2 6 5 1) XLR Inputs Transformer balanced input stage. Pin 1: ground; Pin 2: ‘hot’ (+); Pin 3: ‘cold’ (-). Can be unbalanced by grounding pin 3 to pin 1 of the XLR connector. 2) Mic/Line and Phantom Power Switch Selects the input level of the adjacent XLR input. Left: (48V) mic level with phantom power; Middle: (MIC) mic level without phantom power; Right: (LINE) line level. Mic level has 40 dB more gain than line level.
MixPre-D User Guide and Technical Information Inputs The MixPre-D features two transformer balanced analog inputs. Each input provides enough gain to amplify a variety of signals from low-sensitivity ribbon and dynamic microphones, medium-level wireless and condenser microphones, and “hot” line level signals. The XLR inputs of the MixPre-D are transformer-balanced.
MixPre-D User Guide and Technical Information High-pass Filter Each input of the MixPre-D has a two-position high-pass filter. High-pass (or low-cut/low frequency roll-off) filters are useful for removing excess low frequency energy in audio signals. Wind noise is a common unwanted low frequency signal and a high-pass filter is effective for reducing wind noise.
MixPre-D User Guide and Technical Information To cycle between the available routings of the Tape Return signal, hold down the Input 1 Button (for Channel 3) or the Input 2 Button (for Channel 4) and press the Headphone Controller. An LED in the right meter will illuminate to represent the destination of the routing: • • • • -30: RTN L (Channel 3) or RTN R (Channel 4) -18: Left output bus.
MixPre-D User Guide and Technical Information XLR Outputs The two XLR outputs are active-balanced connections, each capable of driving long lines. These connections can be used as either balanced or unbalanced. When unbalancing, use pin-2 for (+) and pin-1 for ground; float (leave open) pin-3. Tape Output The Tape Output is typically used to interface with consumer inputs such as Comtek inputs or consumer transcription recorders.
MixPre-D User Guide and Technical Information The MixPre-D can drive headphones to dangerously high levels. Turn down the headphone gain before selecting a headphone source to prevent accidental signal extremes. Headphone Source Selection The source of the headphone output can be selected by pressing the Headphone Controller. The Headphone Source LED indicates what source program is present in the headphone output.
MixPre-D User Guide and Technical Information Powering The MixPre-D can be powered from either internal batteries or from external DC. The power-efficient MixPre-D can operate from two AA alkaline batteries for nearly a production day (less with phantom powering). While many users prefer external DC sources to power both their mixer and wireless receivers, the use of internal batteries is perfectly feasible for both primary and backup powering of the MixPre-D.
MixPre-D User Guide and Technical Information Installation and Connection with Mac OS Before connecting the MixPre-D, quit all open applications which use audio. Audio application that are open when the MixPre-D is connected may not recognize the MixPre-D until the application is restarted. OS X Audio / MIDI Setup 1. Follow Applications> Utilities> Audio MIDI Setup to open the Audio MIDI Setup dialog. 2. OS X 10.
MixPre-D User Guide and Technical Information Front Panel Button Shortcuts Function Key Sequence Action HP Source Toggle Press Headphone Controller. Switches monitor source between mixer output (LED off), RTN program (solid blue LED), and computer output (flashing blue LED). RTN Level Press and hold Headphone Controller then turn Headphone Controller. Adjusts the input level of RTN input.
INPUT MixPre-D User Guide 3 5 and 1 7 Technical Information MENU 4 2 6 8 HDD Connector Pin Assignments Connector ARM R 788T C L D A E B F 0 dBFS IN CF EX PWR ARM REC 0 dBFS Pin Assignments Notes 1 – ground 2 – signal (+) 3 – signal (-) 3.3k ohm input impedance, Mic- and Line-level Transformer Balanced. For unbalanced, pin 1 and pin 3 tied together = ground, pin 2 = positive. 3.5 mm Return Input tip – signal L ring – signal R sleeve – signal ground Mates with 3.5 mm TRS jack.
MixPre-D User Guide and Technical Information Limiter • Threshold adjustable • +6 dBu to +18 dBu • 20:1 limiting ratio Metering • 16 segment x 2 GaN (Gallium Nitride) meters, • peak + VU responding Powering Internal: 2 AA alkaline batteries, 4 hours life typical, no phantom power USB Connectivity USB class-compliant device, analog input to USB output, USB monitoring in headphones A/D Converter • 103 dB typical, A-weighted. • Sample rate selectable 44.1 k, 48 k, or 96 k.
MixPre-D User Guide and Technical Information Warranty and Technical Support Warranty & Service Sound Devices, LLC warrants the MixPre-D against defects in materials and workmanship for a period of TWO (2) years from date of original retail purchase. This is a non-transferable warranty that extends only to the original purchaser. Sound Devices, LLC will repair or replace the product at its discretion at no charge. Warranty claims due to severe service conditions will be addressed on an individual basis.
MixPre-D User Guide and Technical Information CE Declaration of Conformity According to ISO/IEC Guide 22 Sound Devices, LLC E7556 State Road 23/33 Reedsburg, WI 53959 USA declares that the product, MixPre-D Field Mixer is in conformity with and passes: EN55103-1, 1997 EMC-Product family standard for audio, visual, audio-visual and lighting control apparatus for professional use - Part 1: Emissions EN55103-2, 1997 EMC-Product family standard for audio, visual, audio-visual and lighting control apparatus
MixPre-D Rev 1.0 - Printed in the U.S.A.
