27th February 2019

Ambient Recording – ACL 203 Lockit Box

Ambient Recording - ACL 203 Lockit Box

n the last few years Hi-Definition video has emerged to the de facto standard on everyday productions due to superior, crisp picture quality and resolution. Meanwhile, respecting cameras have become economically priced and the portfolio is continuously expanded with new HD models from Panasonic, Sony, Red and Arri. Adding to that HD is currently massively pushed as the future broadcast standard on a global scale. The Lockit ACL 203 stays abreast of this development including the complete variety of current HD video formats as well as Word Clock and AES3 black audio with sample rates up to 192 KHz for syncing audio recorders.

The 3 functional blocks, sync format, sync frequency, and time code frame rate are each controlled with a dedicated rotary encoder. This allows for quick and straightforward dialing through even the most exotic variants as pull up/down or cross jam modes. Despite the extensive enhancements it was possible to maintain the original footprint of the predecessor by using latest surface mount components and technology.

Thus, with extensive sync modes and an unrivalled accuracy of 0.2ppm in a highly portable package the Lockit continues being the prime choice for sophisticated synchronisation demands on the go, offering significantly less drift than a single frame per day between fully autonomous units on the set.

Supported Settings:


23.98, 24, 25, 29.97, 30, 59.94, 50, 60

1080i / PsF

23.98, 24, 25(50i), 29.97(59.94i), 30(60i)


23.98,  24, 25, 29.97, 30


25 Fps


29.97, 30 Fps

Word Clock

32, 44.1, 48, 88.2, 96, 176.4, 192 KHz, pull-up / pull-down

Black Audio AES3

24 Bit, Samplerates as above

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