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Gear / Technical Help => Battery Boxes, Preamps, Mixers, ADCs, and Processors => Topic started by: 12milluz on May 10, 2010, 10:59:31 PM

Title: External Preamp with DR-07?
Post by: 12milluz on May 10, 2010, 10:59:31 PM
My rig is two AT MB4Ks going into a Presonus Audiobox USB then into line in of my DR-07. I found out that the Audiobox functions as a standalone preamp with USB power so I have been using it in this way. Thing is, I hate to lug around the Audiobox if I don't have to. Is the external preamp really necessary for this recorder? I don't need phantom power as the mics run on AA batteries. Is it ok to go two xlr to 3.5mm straight into line in or am I going to run into issues with levels?
Title: Re: External Preamp with DR-07?
Post by: 12milluz on May 11, 2010, 09:40:23 PM
Anyone? Does the fact that I'd lose balancing be a  big issue on 15 foot cable runs?
Title: Re: External Preamp with DR-07?
Post by: rastasean on May 11, 2010, 11:07:09 PM
so you have a cable that has two xlr males to one mini jack?
Title: Re: External Preamp with DR-07?
Post by: 12milluz on May 11, 2010, 11:12:28 PM
so you have a cable that has two xlr males to one mini jack?
Nope, but I was planning on buying/making one if this seemed to be a better solution.
Title: Re: External Preamp with DR-07?
Post by: spyder9 on May 12, 2010, 12:56:06 PM
I've recorded with the DR07 with just a Denecke PS-2 out front, no preamp, going Mic In.  Never had a problem overloading.
Title: Re: External Preamp with DR-07?
Post by: 12milluz on May 12, 2010, 03:48:00 PM
Where did you get the xlr male to 3.5mm cable?
Title: Re: External Preamp with DR-07?
Post by: rastasean on May 12, 2010, 04:10:38 PM
Where did you get the xlr male to 3.5mm cable?

I have one robb (darktrain) made me or I'm sure b&h or maybe even a guitar center carries them.
Title: Re: External Preamp with DR-07?
Post by: 12milluz on May 12, 2010, 10:34:55 PM
Does going without the preamp/losing the balancing of the mics add a lot of noise on a +/- 15 foot run?
Title: Re: External Preamp with DR-07?
Post by: rastasean on May 12, 2010, 10:51:06 PM
Does going without the preamp/losing the balancing of the mics add a lot of noise on a +/- 15 foot run?

it does not affect audio from my at822 using the 15 foot cord i have. i think signal degradation would occur at a little longer distance and it may not be too noticeable. 
Title: Re: External Preamp with DR-07?
Post by: spyder9 on May 13, 2010, 12:57:56 AM
Does going without the preamp/losing the balancing of the mics add a lot of noise on a +/- 15 foot run?

it does not affect audio from my at822 using the 15 foot cord i have. i think signal degradation would occur at a little longer distance and it may not be too noticeable.

Agree with Sean.  I've run AKG C568EB (shotguns) > Denecke PS-2 > Tascam DR-1 with 15 feet of cable.  DR-07 should not be a problem either.  Dig it!

http://www.archive.org/details/furthur2010-02-06.akg568.spyder9.106769.flac16