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Shotgun microphone, 40m XLR cable, Tascam portable recorder, input & output impedance
Hello,
i need to record audio for a short film using Tascam DR-40 and one of the shotgun listed below.
Audi-technica AT8035 or AT8015: output Impedance = 500 Ω
Rode NTG-2: output Impedance = 250 Ω
Azden SGM-1000 output Impedance = 1500 Ω
Azden SGM-1X output Impedance = 680 Ωfor a wide shot scene, i will need to place the camera (5DMKII) 40 meters away from the talents and connect the shotgun to the tascam with a 40m long XLR cable
the tascam DR-40 will be connected to my camera with a sescom cable .
(off topic: the talents will have lavalier mic connected to Tascam DR-05)so i was reading that, the highest the output Impedance of the mic, the highest the signal loss when using a long XLR cable.
since the Input Impedance of the Tascam DR-40: = 2200 Ω
the questions is :
-is the Rode NTG-2 the most suitable mic for this kind of situation ? (aside from the mic quality)
– is it better to equalize the Input/output inpedance ? and if yes, how?thanks in advance for your input
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1 Reply
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Hello Mano and welcome to the Cow Audio Forum.
Gross differences in impedance can show losses, but here, not so much. However the Mk ii has crappy audio. I wouldn’t use it for production anyway. I hear the mk iii is much better.
But, you need a phantom supply and the correctly wired cable to put the audio to the correct pins in the camera input.
The NTG-2 runs on a battery, so you wouldn’t need a phantom supply, but you’d still need a specific cable. Also with no mixer and limiter, you can’t control the audio level while shooting. You will probably need to do that.
Regards,
Ty Ford
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