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Word Clock Termination

Sound Devices’ word clock connections on 7-Series recorders do not have a 75 ohm terminating impedance. We do this because several units can be connected without over-loading the unit driving it. In most situations, using no termination works just fine.

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Output Balancing Topologies

Of Equal and Opposites Of the dizzying array of questions that the expansive and all-knowing Sound Devices Technical Support Department fields, the one which has the most people confused, bamboozled, and flummoxed is: “What is this ‘impedance’ balanced output stage that you use on on early MixPre’s and the TA3 outputs of the 442?” Here […]

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722 and Video Sync and Time Code

Q: I have a 722. I also have a Canon XL2. Am wondering if purchasing the Horita PTG (SMPTE Time Code generator) could make the XL-2 be the source device and the 722 a sync device? PTG takes the composite video signal from my camera, and derives the time code for it. I am not […]

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302/442 and “Crackling” Input Controls on Power Up

The 302, like all Sound Devices mixers, including the 442 and MixPre, can exhibit a static, or crackling sound when gain controls are manipulated when the unit is first powered. This noise goes away as the power supply and filter capacitors become fully charged.

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Data Compression and Reduction Options for 7-Series Recorders

The 702, 702T, 722, and 744T recorders can record to several different file formats to extend record time and reduce file size. A review of the options are discussed in this article.

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302 Mono Mic Output Diagram

Adding a Mono Mic or Tape Level Output to the 302

The addition of a mono mic-level output to the 302 is a useful addition for feeding transcription recorders, “Comtek” transmitters, and other inputs. The diagram below illustrates the proper wiring to add a mono mic-level output from the tape level output.

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