XLR Adapter or 20' XLR + 7" XLR to 1/8" cable?

[theofficebox]

In place of the $150 BeachTec XLR Adapter, could I run a 20' XLRF from the Rode NTG-2 into a 7" XLRM to 1/8" minijack cable with no buzz?

With the BeachTec
CAM--BEACHTEC--XLRXLRXLRXLRXLRXLRXLRXLRXLRXLR--RODE NTG-2

With the XLRM to 1/8" adapter cable
CAM--1/8" to MXLR--XLRFXLRFXLRFXLRFXLRFXLRFXLRFXLRF--RODE NTG-2

Thanks in advance! And Merry Christmas! :D

[debuys]

It would probably buzz and sound otherwise awful assuming the XLR to 1/8" is wired properly

[theofficebox]

It would probably buzz and sound otherwise awful assuming the XLR to 1/8" is wired properly

So if it is wired properly it buzzes? :hv20-smilie50:

[MalfunctioningHuman]

Actually, if I were you I would give it a try. Make sure to get the shortest cable that you can get, and you will not get as much degradation that way. I don't know how short those cables can get, but I suppose if you are handy you could cut and splice. They are cheap enough that if you mess up you wouldn't have lost too much.

[HueyNRolf]

You should use an impedance matching transformer adaptor, to correctly terminate the balanced signal.

http://www.bhphotovideo.com/c/product/423360-REG/Hosa_Technology_MIT_156_MIT_156_Low_to_High.html

[debuys]

So if it is wired properly it buzzes? :hv20-smilie50:

yes, often times these adapters are wired for stereo, not balanced to dual mono. Balanced is pin1:ground, pin2:+, pin3:- on XLR and Tip:+, Ring: -,Sleeve: ground on TRS. Stereo is typicly Tip:left, Ring:right, Sleeve:ground.

The proper wiring to adapt an XLR balanced line to dual mono would be pin1:tip and ring, pin2:sleeve, pin3:sleeve. With a short cable run this wiring would be fine since short unbalanced runs are typically fine (like the RCA cables you hook up a stereo with).

The NTG is 50ohms and will definitely suffer from loading caused by the mismatched high impedance of the HV's inputs. You will need a transformer.

[ejolson]

The proper wiring to adapt an XLR balanced line to dual mono would be pin1:tip and ring, pin2:sleeve, pin3:sleeve.

You probably don't want to connect pins 2 and 3 together.

http://www.rane.com/note110.html

If you use an XLR to 1/8 balanced TRS cable rather than a properly wired cable you preserve the differential signal by recording the positive part to the left channel and the polarity inverted part to the right channel. The noise free signal can then be digitally recovered by differencing the left from the right.

http://www.hv20.com/showthread.php?t=16907

[debuys]

I could be wrong, but I believe the output of the NTG is transformer balanced and grounding/coupling pins 2 and 3 is recommend (see wiring "5"). Great link btw...Rane is a great company and have made several custom snakes for me.

Recording + and - to left and right is intriguing, But the hoops you'd jump through to resolve it would be quite the dance.

I was wrong on the impedance. I picked it up from B+H's specs. The output impedance is 250 on phantom 350 on a battery according to the Rode website.

In event running 20' of cable to the HV20 unbalanced is a bad idea.

[Khaver]

I remember a post on here somewhere where you could wire the xlr cable to a stereo 1/8" pin so the - and + xlr signals went to the left and right channels in the camcorder. In your NLE you would invert one of the channels so the noise would cancel and the audio would be back in phase.