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Author Topic: TASCAM DR-100mkIII NEW Unreleased Recorder  (Read 67883 times)

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Offline Jammin72

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Re: TASCAM DR-100mkIII NEW Unreleased Recorder
« Reply #255 on: February 12, 2020, 02:08:12 PM »
So did a Punk club show on Sunday.  For some bands I had to record with the pad on and had to set it at .05-1 on the "knob".    Anyone with more tech knowledge know what would happen if we just switched to line input with the phantom power on?  The difference in signal level seems like it would be fine for something like that, my only question is about the input impedance.

Per the recorder specs:

Quote
MIC/LINE IN jacks (XLR support phantom power)
Connectors:
XLR-3-31
(1: GND, 2: HOT, 3: COLD)
6.3mm (1/4") standard TRS jacks
(Tip: HOT, Ring: COLD, Sleeve: GND)
When MIC input source selected
Maximum input level: +2 dBu (PAD on)
Minimum input level: −70.5 dBu (PAD off)
Input impedance
i XLR input: 2 kΩ or more
i TRS input: 20 kΩ or more
When LINE input source selected
Maximum input level: +24 dBu
Nominal input level: +4 dBu
Input impedance: 20 kΩ or more

I'm guessing the unit looking for 10x the impedance could be an issue with self noise but otherwise... not sure.

Guess I could just try it, running external attenuators seems silly after spending so much $$ slimming everything down.   ;)
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Offline dallman

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Re: TASCAM DR-100mkIII NEW Unreleased Recorder
« Reply #256 on: February 13, 2020, 11:37:12 AM »
So did a Punk club show on Sunday.  For some bands I had to record with the pad on and had to set it at .05-1 on the "knob".    Anyone with more tech knowledge know what would happen if we just switched to line input with the phantom power on?  The difference in signal level seems like it would be fine for something like that, my only question is about the input impedance.

Per the recorder specs:

Quote
MIC/LINE IN jacks (XLR support phantom power)
Connectors:
XLR-3-31
(1: GND, 2: HOT, 3: COLD)
6.3mm (1/4") standard TRS jacks
(Tip: HOT, Ring: COLD, Sleeve: GND)
When MIC input source selected
Maximum input level: +2 dBu (PAD on)
Minimum input level: −70.5 dBu (PAD off)
Input impedance
i XLR input: 2 kΩ or more
i TRS input: 20 kΩ or more
When LINE input source selected
Maximum input level: +24 dBu
Nominal input level: +4 dBu
Input impedance: 20 kΩ or more

I'm guessing the unit looking for 10x the impedance could be an issue with self noise but otherwise... not sure.

Guess I could just try it, running external attenuators seems silly after spending so much $$ slimming everything down.   ;)
I'm not sure if I fully understand your comments, but as I think you are noting the DR100MKIII has (like many other recorders or pre-amps have in one way shape or form) has a mic pad for recording at a lower attenuation. This is specifically designed for most situations where you would be recording live amplified audience recordings. I do not know if or how much it raises the noise floor, but for a live loud band, it would not be an issue. If I use the deck, I always have to have this set or my recording will distort or come close. Using an external attenuator is not necessary nor would the recording be better than using the built in mic pad. I'd recommend using the mic pad which is a built in attenuator designed for exactly the situation you are recording in, that is what it was designed for. The higher attenuation is for much softer recording like nature or acoustic music.
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Offline Jammin72

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Re: TASCAM DR-100mkIII NEW Unreleased Recorder
« Reply #257 on: February 13, 2020, 11:55:04 AM »

I'm not sure if I fully understand your comments, but as I think you are noting the DR100MKIII has (like many other recorders or pre-amps have in one way shape or form) has a mic pad for recording at a lower attenuation. This is specifically designed for most situations where you would be recording live amplified audience recordings. I do not know if or how much it raises the noise floor, but for a live loud band, it would not be an issue. If I use the deck, I always have to have this set or my recording will distort or come close. Using an external attenuator is not necessary nor would the recording be better than using the built in mic pad. I'd recommend using the mic pad which is a built in attenuator designed for exactly the situation you are recording in, that is what it was designed for. The higher attenuation is for much softer recording like nature or acoustic music.

I do use the pad.  But even with the pad engaged I could only use the record level at somewhere between 0.5 and 3 on the dial.  That's not really ideal considering a range of 31.5.  I was simply musing that the difference between mic in with the pad engaged at the extreme and line in is the difference between +2dB and +4dB so signal isn't that far off.  Theoretically you could run mics in that situation with the unit selected to line in and gain a lot more headroom BUT there is a difference in load expected which I'm not entirely sure how that's going to effect things.  From what I've read it increases the noise floor but I wasn't sure if that was the only issue.  I guess I'll just try testing it at another similar situation on stuff I don't care about as much.  Another option would be to use the unit at 24V phantom to see if that would be enough to power AKG capsules using a PFA which would lower the output of the mics but I'm guessing would impact performance.
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Offline aaronji

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Re: TASCAM DR-100mkIII NEW Unreleased Recorder
« Reply #258 on: February 14, 2020, 06:16:29 AM »
^ If you can still use phantom power when the input is set to "line" (I think so, but I am not certain), I would try that. Per the specs, you'll get a 22 dB higher maximum input level compared to mic-in with the pad.

 

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