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Originally Posted by me
I wasn't aware that those binaural mics need to be powered.
So the battery box is all you need, not a pre-amp? Why can you use the line-in setting, with a battery box? If you are not using a pre-amp, wouldn't you still need to use the ext mic setting, which has an internal pre-amp?
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The mics don't
need to be powered, they will simply tolerate louder volumes better the more voltage you apply to them. A 9V battery box plugged into a set of mics usually means they will provide enough signal to be laid down only using line-in, with no amplification at all. Only feeding 2.5V of power your mics on the ext mic setting means they may well have overloaded in the gig setting.
However, I suspect your distortion was probably due to to running the iRiver preamp too high for the sensitivity of your mics. 5 is probably a good setting to try. With my 9V setup, I usually only run between 0 and 3.
That said, I'd recommend getting an SP battery box anyway if you're serious about taping, as the bass roll-off option on these will also control any low-end distortion you can get in small venues etc. Hope that helps.
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Originally Posted by homer
i wonder if you can help... i am tring to use audio technica pro7a mini condenser microphone (used happily for years with sony md) with h320... i seem not to be able to keep AGC setting when using anything but internal microphone... therefore the recording appear very weak and from about 60cm no voice is being picked up... i use it mostly to record conversation in public places and outdoors so a bit different to your interest... but i wonder if you can help... also do you think it will work any better with any of the microphones you recomend?
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There is no AGC for ext mics - You'll just need to turn up the gain level for ext mic in the record settings, as it seems your AT isn't very sensitive. But it should be fine apart from that.