SD MM-1 to Tascam DR-40 How?

[Bryster51]

Hello Folks!

I've done a search and scanned thru many headers to posts and have not found how to properly do this.

Attenuator? How much...40db? Placed between MM-1 and DR-40 Will this be enough?

Looks to me it will take an XLR to 1/4 into the DR-40, to keep out the DR-40's Preamps.
As above, DR-40's Mic Gain Setting should be set to what setting?

I will be running an AT-897 into the MM-1.

I'm not versed in electronics, so here goes the Title question. So I post the following specs for you.

Many thanks!

Brian Depew

MM-1 Key Specs

Gain: (Mic - Line): 0 dB to 66 dB input to output, switch selectable

Dynamic Range: (Mic to Line) 122 dB minimum at the +18 dB gain settingGain Accuracy: (Mic - Line) +0.6, -0.1 dB with reference to front panel gain markings (150 ohm source, 100 k load impedances)


Output Clipping Level: (Line) +22 dBu minimum with 100k ohm load+20 dBu minimum with 600 ohm load

Input Clipping Level: (Mic) +4 dBu minimum at the 0 or +18 dB gain setting


DR-40 INFO

[TABLE="width: 602"]
[TR]
[TD]EXT MIC/LINE IN[/TD]
[TD="width: 351"][/TD]
[/TR]
[TR]
[TD] Connector[/TD]
[TD="width: 351"] XLR/TRS Combo Jack (1:GND,2:HOT,3:COLD)[/TD]
[/TR]
[TR]
[TD] Input Impedance[/TD]
[TD="width: 351"] 2.2kΩ(MIC)/10kΩ(LINE)[/TD]
[/TR]
[TR]
[TD] Nominal Input Level[/TD]
[TD="width: 351"] -19dBV(MIC) / +4dBu (LINE)[/TD]
[/TR]
[TR]
[TD] Maximum Input Level[/TD]
[TD="width: 351"] -3dBV (MIC) / +20dBu (LINE)[/TD]
[/TR]
[TR]
[TD] PHONES/LINE OUT[/TD]
[TD="width: 351"][/TD]
[/TR]
[TR]
[TD] Line Connector[/TD]
[TD="width: 351"] 1/8(3.5mm) Stereo mini-phone jack, unbalanced[/TD]
[/TR]
[TR]
[TD] Output impendence[/TD]
[TD="width: 351"] 12Ω[/TD]
[/TR]
[TR]
[TD] Nominal output level[/TD]
[TD="width: 351"] －14dBV（10kΩ loaded）[/TD]
[/TR]
[TR]
[TD] Maximum output level[/TD]
[TD="width: 351"] ＋2dBV（10kΩ loaded）[/TD]
[/TR]
[/TABLE]


[TABLE="width: 602"]
[TR]
[TD][/TD]
[TD="width: 351"][/TD]
[/TR]
[TR]
[TD][/TD]
[TD="width: 351"][/TD]
[/TR]
[TR]
[TD][/TD]
[TD="width: 351"][/TD]
[/TR]
[TR]
[TD][/TD]
[TD="width: 351"][/TD]
[/TR]
[TR]
[TD][/TD]
[TD="width: 351"][/TD]
[/TR]
[TR]
[TD][/TD]
[TD="width: 351"][/TD]
[/TR]
[TR]
[TD][/TD]
[TD="width: 351"][/TD]
[/TR]
[TR]
[TD][/TD]
[TD="width: 351"][/TD]
[/TR]
[TR]
[TD][/TD]
[TD="width: 351"][/TD]
[/TR]
[TR]
[TD][/TD]
[TD="width: 351"][/TD]
[/TR]
[/TABLE]

 

[Steve House]

I would not expect you to need a pad between the MM-1 and the DR-40. The MM-1 outputs a +4dBu nominal line level signal while the DR-40's line input is also rated for +4dBu nominal. Use an XLR-F->TRS balanced patch cable to connect the output of the MM-1 to the line input of the DR-40.

 

[Rick R]

I have run a SD 302 directly into a DR-40 via the XLR inputs. The Tascam DR-40's input select switch must be set to 'EXT Line' and the Record mode software input menu must be set to 'EXT. IN' as well>.
I set the "DR40's line level gain to 4, which generally yields program peaks at around -6dB. The 302's limiter is on, and set to +17dB. For 'unattended' operation, I would suggest setting the levels a little lower, including the limiter, if that is user adj. on the MM. I assume the MM XLR output is referenced at 0dBu like other SD mixers.

 

[Bryster51]

Many Thanks Steve!

Got the goods Friday, and tested it all out and all worked like a charm.

 

[Bryster51]

Hi Rick!

Thanks for the help on the settings! tested it all out today while practicing with the video gear at the local airport and all works well!