I got a Neweer NW-81 shotgun mic to use when recording video. It's cheap but has pretty good reviews.
I already own a DR-40 and my plan was to use that to record the audio from the mic. This is basically the first time I've tried to use the external inputs on it, and when I set the DR-40 to mic level input, I get an audible hiss even without anything connected. With the input gain around 10, it's noticeable, but not too bad. At the higher levels I need to use with this mic, it's really bad. With the internal mics, it has a very low noise floor, even if I turn the gain up a lot, so I was really surprised by this issue.
It doesn't really seem to be a problem with the mic. This mic works great if I use a different pre-amp to boost the signal to line level for the DR-40.
Is this just an inherent issue with the DR-40's external input pre-amps? If so, is the DR-60 or DR-70 any better? Or is there some other issue here?
EDIT: I've done some more testing and realized that the hiss isn't really as bad as it seemed at first and I can probably deal with it, but I'm definitely getting noise from the electronics on the DR-40 when the mic is connected directly to it. There's a one per second buzz when the DR-40 and occasionally other electronic noises. It only happens when the mic is connected, but doesn't seem to be picked up by the mic or cable since I can move the DR-40 away and it still happens. It doesn't happen when using the other pre-amp. I'm using regular 3 pin shielded XLR cables for all of this.
I already own a DR-40 and my plan was to use that to record the audio from the mic. This is basically the first time I've tried to use the external inputs on it, and when I set the DR-40 to mic level input, I get an audible hiss even without anything connected. With the input gain around 10, it's noticeable, but not too bad. At the higher levels I need to use with this mic, it's really bad. With the internal mics, it has a very low noise floor, even if I turn the gain up a lot, so I was really surprised by this issue.
It doesn't really seem to be a problem with the mic. This mic works great if I use a different pre-amp to boost the signal to line level for the DR-40.
Is this just an inherent issue with the DR-40's external input pre-amps? If so, is the DR-60 or DR-70 any better? Or is there some other issue here?
EDIT: I've done some more testing and realized that the hiss isn't really as bad as it seemed at first and I can probably deal with it, but I'm definitely getting noise from the electronics on the DR-40 when the mic is connected directly to it. There's a one per second buzz when the DR-40 and occasionally other electronic noises. It only happens when the mic is connected, but doesn't seem to be picked up by the mic or cable since I can move the DR-40 away and it still happens. It doesn't happen when using the other pre-amp. I'm using regular 3 pin shielded XLR cables for all of this.
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