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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 master and the 722 a slave? PTG takes the composite video signal from my camera, and derives the time code for it. I am not sure if […]

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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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bandwidth of 7-Series Microphnone Preamplifiers

7-Series Preamplifier Bandwidth

w Many test and measurement applications take advantage of the impressive bandwidth offered by the 722 and 744T analog inputs. Linear frequency response, particularly low frequency response, is needed for noise and vibration measurements. Linear high frequency response is useful when slowing audio in post production.

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