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• 552 Firmware Revision 1.1 Now Available for Download

Revision 1.1 firmware for the 552 is now available for download. This new revision includes several new features and numerous changes and bug fixes. Firmware updates for the 552 mixer require an SD card. Detailed instructions and complete details on features, changes, and bugs are on the download page.
• 552 Gain Control Topology

To provide the extensive control and flexibility provided by the 552, its high-performance analog circuitry is infused with numerous control types. Digital control of analog signals provides the circuit designer with the power to offer features that analog alone can't offer. The mix of different control types for gain in the 552 include analog potentiometers, digital potentiometers, analog switches, micro-relays, and physical switches. Each location in the circuit where gain is controlled is described below.
• 702, 702T, 722, and 744T Firmware 2.65 Now Available

Revision 2.65 firmware is now available immediate download and installation for the 702, 702T, 722, and 744T. This new revision adds several features and minor bug fixes. New features include new behavior for marking circle takes and extension of iXML metadata to add a new classification of a "No Good" take.
• 552 vs. 442

The 442 mixer, introduced in 2001, brought many powerful capabilities, common to the studio, to field mixing. Features like direct outputs, multiple output connections, solo metering, two-stage gain, and comprehensive limiters changed the expectations of sound mixers everywhere. The introduction of the 552 and the discontinuation of the 442 warrants a look at what is similar and what is different between these two powerful field production mixers.

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