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Re: extension cables

Subject: Re: extension cables
From: "Philip Tyler" macmang4125
Date: Fri Jan 22, 2010 7:30 am ((PST))
Hi Vicki

The short answer to your question is what ever length you can get away with.

An unbalanced cable is going to be prone to picking up all sorts of electrical 
nasties and the longer the run the more nasties it is liable to pick up if they 
are around. As with all things what you can get away with when there is no 
other electrical equipment around is going to be a lot longer than if there is 
nearby electrical equipment. Although just moving a cable a little one way or 
the other can have an effect on what it is picking up.

Another thing to bear in mind is any cable acts like a capacitor which for, 
shall we say 'normal' runs is not going to be a problem. But as the length gets 
longer it can start to attenuate frequencies acting like a low pass filter. 
This is dependant on the input impedance of the unit your using but try and go 
for low capacitance cables if there is a choice.

So if you use good quality cable and if there is very little electrical 
equipment causing interference then 100 feet (+) should be OK, you may even be 
able to go longer.

The other thing you could do is use something like a FEL 3.5 series mic amp and 
put that at the far end with the Telinga and then run the cable back to the 
LS-10. You would then have a +20dB signal now running along the cable which 
will be less prone to problems.

Have a look here:


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