Sound Devices MixPre User Manual
Microphone preamplifier
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- User manual and technical information (15 pages) ,
- User manual (9 pages)
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Summary of Contents for Sound Devices MixPre
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Page 1: Microphone Preamplifier
MixPre Microphone Preamplifier User Guide and Technical Information Sound Devices, LLC 300 Wengel Drive Reedsburg, WI 53959 USA Ph: +1 (608) 524-0625 Fax: +1 (608) 524-0655 www.sounddevices.com ©2001-2004 Sound Devices, LLC... - Page 2 MixPre is a studio-quality two-channel, portable, stereo microphone preamplifier/mixer. With its pan switches, built-in slate microphone, 1 kHz tone oscillator, and headphone monitoring, the MixPre is a flexible, portable mixer. The MixPre has impressive audio performance and com- prehensive features, making it ideal for the front end of any studio or field production system.
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Page 3: Key Features
User Guide and Technical Documentation EY FEATURES High Performance Microphone Inputs • Maximum of 66 dB of gain per input • Premium Lundahl input transformers • Sealed, conductive plastic potentiometers • Phantom power, selectable between 48-volts and 15-volts • High-pass filters with 80 or 160 Hz corner, 6 dB per octave •... - Page 4 8. Tape Return Switch Toggle switch allows external audio to be monitored in the headphones. The center position is MixPre program audio. The left and right positions monitor tape return audio; the left position is locking, and the right posi-...
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Page 5: Power Switch
User Guide and Technical Documentation Headphone Connector Accepts stereo and mono headphones with 1/4-inch connectors. 10. Headphone Volume Control Adjusts the level in the headphones. 11. Headphone Peak LED Illuminates 3 dB before clipping of either channel of the headphone circuit. -
Page 6: Mic Inputs
METER 1kHz MixPre Compact Mixer L C R L C R SLATE TAPE RTN PHONES INT EXT NPUT ANEL ONNECTORS AND ONTROLS TAPE OUT TAPE RTN LEVEL LINK THRESHOLD LIMITER MIC INPUTS PHANTOM 14. MIC INPUTS Transformer-balanced XLR inputs accepts microphone level signals. Pin 2 = hot, pin 3 = cold, pin 1 = ground. -
Page 7: Panel Connectors
Attachment point for camera straps. 22. Tape Return Input Connector 3.5 mm TRS stereo (unbalanced) connector allows external audio sources to be monitored in the MixPre Headphone circuit. Tip = left, ring = right, sleeve = ground. 23. Left and Right Line-Level Outputs Active-balanced XLR line-level outputs. -
Page 8: Operational Notes
The “Mix” in MixPre The MixPre pan switches assign each input channel to an output bus. With this feature, the MixPre can be used as a two-channel microphone pream- plifier and as a simple mixer. As a mixer, many applications are possible, such as: •... -
Page 9: Phantom Power
The 80 Hz position is appropriate when recording general speech, music, and ambient sound. The 160 Hz position is useful to enhance speech clarity. The MixPre high pass circuit topology is unique in that the filters are placed immediately after the input transformer, before any active gain circuitry. -
Page 10: Tone Oscillator And Slate Microphone
The left and right positions monitor the tape return audio. Left is locking, and right is momentary. The center position monitors the Left and Right outputs of the MixPre. As the MixPre can drive headphones to very high levels, care should be exercised when monitoring. -
Page 11: Power Sources
Power Sources The MixPre is designed to operate from two internal AA alkaline cells for approximately 6 hours with typical signal levels (without phantom power). External DC sources such as AC to DC transformers and external battery supplies can also power the MixPre. -
Page 12: Current Draw
Current Draw The MixPre can vary significantly in the amount of current it draws. Sev- eral functions of the MixPre directly affect current draw in different ways. The following list highlights the larger current drawing functions (listed from highest to lowest current draw). -
Page 13: Specifications
User Guide and Technical Documentation PECIFICATIONS Gain: Input (Tape In to Headphone Output) Unbalanced, 1 meg ohm input impedance Mic Input to Output, per channel, continuously variable Outputs: Output Gain Range XLR: Active-balanced, 120 ohm output imped- Line Off–66 dB ance Tape Off–52 dB... -
Page 14: Ce Declaration Of Conformity
Sound Devices, LLC Manufacturer’s Address: Sound Devices, LLC 300 Wengel Drive Reedsburg, WI 53959 USA declares that the product: MixPre Professional Microphone Preamplifier is in conformity with: Document No. Description EN55103-1 (1997) Emissions standard for product family audio devices for professional use... -
Page 15: Fcc Statement
ONE (1) year 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. - Page 16 MixPre User Guide...
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