xntrix Posted November 26 Report Posted November 26 Hello from Toronto where bunch of awesome people make bunch of awesome movies, TV shows and other highly creative audiovisual gems. Nick Davey of Purple Cat Printing and myself had our own ideas about the mount for the amazing A20 Tx on a Boom Pole. We wanted quick portability from boom to boom, or to a plant, car, tight space, whatever the challenge might be. We wanted some mechanical protection of the transmitter’s body. We wanted light design to be more popular with our precious boom operators. We wanted audio cable separation from the antenna, and cable catches protecting the fragile Lemo connection. We wanted a product that others find useful and pleasant. And I wanted long battery life without increase in weight. The mount is printed from soft light material with added texture for easier grip. It will not slip out of your fingers even when handled in thick winter gloves, or when you sweat. The external power barrel is an optional module; it does not have to be used, it is an option. Four screws hold the Tx to a plate, with or without it. The external battery is type 21700 and this particular Vapcell P2150B has 21.6Wh at 78 grams. That is a pretty awesome energy density, without carrying a lot of safety metal at the end of a boom stick. At 1mW Tx power we have run P48 mic for 8.5 hrs and have not died yet. When I considered the external powering option, it seemed like the best peace of mind solution for a typical shoot day. For example, compared to 3 NiMH AA batteries with 2850mAh each (Ladda, Eneloop) that weight together 90g, they offer only 10.26 Wh. The Xtar Li-Ion type 14500 weight together 60g and offer 13.32 Wh. The Vapcell F15 which is also type 14500 have a combined weight of 66g and offer 16.65 Wh. At 21.6Wh and 78g, the Vapcell P2150B makes work very comfortable. You know, as an extreme, it also works WITH the battery slots occupied. I wonder what that would be like running 20mW and record as well. The USB-C connector latches both on the Tx side and battery side; the force needed to pull it out is substantial. There is no danger of accidental bump & disconnection. This design has been tested on film sets, in several previous versions, for more than 4 weeks. It works great. We have put a lot of thought, hours of testing, some failures and set backs, and a lot of care into this. Nick is considering offering it through Trew Audio, pricing and availability TBD. Oh, there is also a Neoprene rain cover for this (not shown). Please let us know what do you think about this mount Quote
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