Can I feed the G2 transmiiter with a signal froma mixer?

Spartacus

Spartacus

Veteran
I was wondering if I could use the G2 as a wireless way to get a feed from the mixing console of an on-stage event (only speech, no music...)
Any thoughts?
 
rafaeldelauz said:
yes, you can, just be sure you feed the transmitter with mic. level.
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Which is not entirely a no-brainer. Mic level is *very* low compared to what normally comes out of a mixing console, which is line level. Most consoles do not have mic level outputs, so you'd need a correct way to lower the level. You'll need a signal that is both:

-Highly attenuated in relation to line level, and

-Free of noise, which you would likely get an excess of if the line level signal was attenuated at too early a point in the signal path.

Probably ideal would be some sort of pad that would lower the gain right at the connection point cleanly, but I doubt you'd find such a device too easily. If you tapped off the mixer from an output that had a dedicated fader or pot that was very close in the circuit to the output itself you' probably be ok.

You'll also want to lower the transmitter's mic input level as much as practicable, but still watch out for overload. Depending on where the G2's level control is in the circuit, you might still be able to distort it with too much signal.

Generally, if you're going to try this, check very carefully first of all for proper level, then listen to the connection through the lav's receiver for hum and hiss. If you find too much, you need to check the situation to make sure the level reduction is as close to the end of the signal chain as possible.

It's possible with some mixers that you won't be able to get a sufficiently noise-free signal through any of its available outputs once the level has been lowered acceptably.

Best of luck.
 
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Ted Spencer said:
Which is not entirely a no-brainer. Mic level is *very* low compared to what normally comes out of a mixing console, which is line level. Most consoles do not have mic level outputs, so you'd need a correct way to lower the level. You'll need a signal that is both:

-Highly attenuated in relation to line level, and

-Free of noise, which you would likely get an excess of if the line level signal was attenuated at too early a point in the signal path.

Probably ideal would be some sort of pad that would lower the gain right at the connection point cleanly, but I doubt you'd find such a device too easily. If you tapped off the mixer from an output that had a dedicated fader or pot that was very close in the circuit to the output itself you' probably be ok.

You'll also want to lower the transmitter's mic input level as much as practicable, but still watch out for overload. Depending on where the G2's level control is in the circuit, you might still be able to distort it with too much signal.

Generally, if you're going to try this, check very carefully first of all for proper level, then listen to the connection through the lav's receiver for hum and hiss. If you find too much, you need to check the situation to make sure the level reduction is as close to the end of the signal chain as possible.

It's possible with some mixers that you won't be able to get a sufficiently noise-free signal through any of its available outputs once the level has been lowered acceptably.

Best of luck.
Click to expand...
Ted is all right about getting mic level signal, check the mixer before your shooting day. PSC makes a line to mic. pad, very cheap and effective. it cuts around 50db and you should be ok with that. If your cables can handle line level, be sure you are patching everything in the right way.
 
nice to see people who dont read manual giving advice -\- :-)

line level - ring and ground - not sure how high it may take be but probbaly 15 db pad would be the right thing to be on the safe side get + 20 dbu in maximum
 
This is too hot for me, I don´t wanna damage my G2 and since i don´t have a sound assistant for this job, I think I just go wired (laying the cable should take about the same amount of time for me as trying out the wireless transmission...)
Thank you all, guys!
 
you cant damage the input , you just **** your sound

the tip is the mic level , the ring is consumer line level
reed manual -
 
What you need in this situation is a "direct box," also known as a "DI box." It converts that line-level signal out of the mixer down to mic level that can go into your transmitter. I've done this several times to get a wireless feed out of a mixer with Shure wireless systems and it's always worked well for me.
 
Captain Pierce said:
What you need in this situation is a "direct box," also known as a "DI box." It converts that line-level signal out of the mixer down to mic level that can go into your transmitter. I've done this several times to get a wireless feed out of a mixer with Shure wireless systems and it's always worked well for me.
Click to expand...

Didn´t realize I could use a DI box for this situation, thanks!
 
Spartacus said:
Didn´t realize I could use a DI box for this situation, thanks!
Click to expand...
But Oleg pointed that the G2 can handle line level input. Sorry I'm not familiar with sennheiser wireless system, that's why I recommended dropping the line level to mic. I checked the Sennheiser website and Oleg is right, the G2 transmitter is mic/line level input. In case you need to bring the level down, 15db should be more than enough. I think you are good to go.
 
Captain Pierce said:
What you need in this situation is a "direct box," also known as a "DI box." It converts that line-level signal out of the mixer down to mic level that can go into your transmitter. I've done this several times to get a wireless feed out of a mixer with Shure wireless systems and it's always worked well for me.
Click to expand...

Most DI boxes are basically impedance matching devices (Hi-Z in, like an electric guitar to Lo-Z out, like a mic pre), not gain matching, and won't solve the excess level issue unless they also incorporate a pad, which some do. They do work "backwards" as you suggest, but a non-padded DI will typically only lose a few db of level, so you'll still need to knock it down quite a bit to get it in the ballpark for a mic input fed by a +4 (or even -10) line source.
 
Here's the Sennheiser part that appears to answer the question:

http://www.bhphotovideo.com/c/product/217589-REG/Sennheiser_CL2_CL_2_Transmitter_Line_Cable.html

Evidently it will allow the G2 transmitter to accept standard line level signals. It's not clear whether it's a straight pin-to-pin hot-cold-ground wiring situation, or if, as Oleg stated, it uses the ring for line. Either way, it's spec'ed in the G2's documentaiton (which, yes, I should have checked first - my bad) as line-level friendly. It's $18 at B&H, which is certainly a fair price, unlike most of the other G2 component$ when bought a la carte.
 
dont recommend ever use premade cables from sennheiser as these are the worst cables you buy , the stamped connectors go bad after few months use without any possibility for repair - make your own
forget to mention for line input connect the tip to the ground as well
 
set input sensitivity to -30 on the tx. no hassles... DI wont work for this application, as mentioned. good luck, mate...
 
Thanks for all your advice guys!
I went for the CL-2 (Oleg, forgive me :beer:, but I´ll probably only need it twice a year...) and will turn down sensitivity on the transmiter.
If all failes (if I fail to make it work, that is :2vrolijk_08:...), I´ll go wired...
 
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