ralck Wrote:Now, from my u


ralck Wrote:

Now, from my understanding, XLR by default is a balanced cable. That’s just how it’s designed. And balanced cables are designed to not be affected by RFI, etc because of the hot/cold wires.

There’s no such thing as a "balanced cable". XLR is a connector, with 3 pins. Usually XLR-XLR cables are 3 wires. They can be used as ground(X), Left, Right unbalanced or as Signal+, Signal-, ground to create a balanced line, or in a few other configurations. Many newer devices use them for balanced lines. Older devices had support for them as 2-channel unbalanced and single channel balanced, some only had 2-channel unbalanced.

So my stupid question is, if the cable design is so that it helps reduce interference, is there a reason to spend a lot of money on an expensive cable? Will a cheaper cable still degrade the audio quality a lot?

The cable itself doesn’t reduce interference, the balun transformers do. What happens is when your audio is generated, it is converted by a transformer to balanced signal, with signal+ and signal-, both being exact inverses of each other. The idea is that any interference applied to the cable will apply evenly to both, so if the signal is shifted down x, the balun on the other side will realize this (its truly a passive system, but this is the best way I know to explain it in text only) and counter the interference.

My microphone is an NTG-2 (Well, I’ll be ordering it from B&H tomorrow :-P) and I’ve got a DXA-4 XLR adapter for my VX2000. I don’t want to cheap-out on audio cables and have that keep me from getting good audio, but I don’t want to pay more if I don’t have to. For example, take a look at a few of these links:

Just get some quality XLRs, as long as you don’t beat them up or overstress them, they’ll work 8)

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