First post here. I have been lurking and reading for a couple of weeks -- didn't really see these specifics addressed.
I am looking at putting a rig together for location recording, with the equipment rack and computer close to either the monitor desk or the FOH console. Performance is primary and cost is a distant second. Potential for expansion is also a consideration.
Attached is a shot of the gear that will be in the equipment rack as well as a shot of the Holophone H2-PRO surround sound microphone. The Holophone will be used as an audience / ambience mic and can also take the system into the world of multi-channel surround sound recordings.
The three blue devices at the top are combination mic splitters / mic preamps from XTA Electronics in the UK – model DS8000.
Below those are two Sytek MPX-4Aii four-channel mic preamps, made in USA.
The analog-to-digital converters are at the bottom – they are made-in-USA Benchmark ADC16s.
The specs for the ADC16 say maximum input level at maximum gain = +6 dBu @ 0 dBFS. This should work well with the outputs from the Sytek mic preamps. I am wondering about the XTA DS8000's output levels:
Ideally I would like to use the transformer outputs from XTA to Benchmark but I'm not sure the transformer outputs will have enough steam to drive the ADC16 properly. Will they?
Nominal signal level, relative to 0dB gain Electronic 0dB Transformer -10dB
Maximum output level into 600R Electronic +20dBu Transformer +10dBu
Next question -- from the Benchmark website:
Two 6-conductor FireWire 400 connectors allow daisy chaining with other FireWire devices.
This tells me that the computer we use will only need to have a single FireWire port. I am thinking that either a Mac Mini or a MacBook Pro loaded with options should be a good choice. Each of these is equipped with one FireWire 800 port. We'll use an external Thunderbolt drive for audio recording and playback. Has anyone tried chaining two ADC16s together?
I am also thinking that Pro Tools 10 (not HD / HDX) is an OK way to go. From the Avid Pro Tools 10 website:
• 96/48/24 maximum simultaneous audio tracks @ 48/96/192 kHz
• 32 maximum simultaneous audio recording tracks
Pro Tools 10 will give us the ability to record up to 32 tracks at once (up to 24 from the stage mics and DIs plus up to eight from the Holophone surround mic) at 96kHz. Should work in theory -- does anyone have practical experience to share?
Thank you to any and all who respond and thanks for this great site!