Sound Devices has heard from a few mixer customers experiencing difficulty removing AA batteries from the battery compartment of a field mixer, specifically the first two inserted cells. There are two reasons this would occur:
Since the conception of the 788T, Sound Devices engineering designed the recorder to make sure that it could be used in a bag in close proximity to wireless receivers without ill effect. The result: the 788T is a benchmark for digital recorders and RF performance.
7-Series recorders automatically switch from external DC power to the attached Li-ion battery when the external voltage falls below a 9 volt threshold (or the setup-menu set voltage on the 788T). This seamless switchover provides protection against sudden or unexpected loss of external power.
Hard disk drives are mechanical devices and are susceptible to damage from physical shock. One type of physical shock, called operating shock, occurs when the disk is in operation. During operation, the drive head is typically over the drive platters reading and writing data. When a physical shock to the drive occurs during operation, the head and the platters can come into contact causing both components to be damaged.
The 788T has been designed as a ‘big brother’ to the 744T recorder, offering many more inputs and greater headphone monitoring capabilities. Although it is designed as a recorder (not a mixer/recorder), it does offer some mixer-like functionality. One of these functions is the ability to use unused inputs as camera returns.
When two or more devices are intended to record or playback in sync, it is important to ensure that their word clock sources are locked together to prevent drift between the devices. For digital audio devices, audio sampling rate determines speed. For picture equipment, it is frame rate. Failure to lock audio devices can result in poor audio quality and/or lack of synchronization.