Is there a reason to use RCA over BNC connectors to transport analog audio?

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I use balanced interconnects with XLR everywhere. I ditched my audiophile friends and hang out with pro-audio people. 🙂

Inside my last amp build, I used SMB patchcords for signal connections between boards.

I did get as far as laying out something using semi-rigid and SMA once, but costs started spiralling out of control and access for the torque spanner becomes an issue.

Last time I looked BNC was slighly more than XLR in connector costs but that was 20 years ago. APC-7 would be very silly. For me XLR works as you can assemble like a roadie and it still works. But my issue is my cack handedness rather than anything else
 
Switchcraft was making what amounted to a "mini" XLR, but it does not seem to have caught on. I thought it was great.

Then there are the connectors made "famous" by Levinson back in the 70s, when he used expensive Lemo types... that alone opened a niche market for "adapters" back to RCA.

In my world coax is fine where cable capacitance is not an issue at all, and where shielding is important. I know there are low C coax cables...

The BIG problem with BNC and almost all of the coax connectors that are of the male gender is that they are a royal PIA to solder to and take a limited range of wire gauges.

I'll go with my friend scopeboy in as much as low Z balanced connections largely take the cable itself out of the equation as far as having any "higher order" unwanted sonic effects. (if you believe that such things exist - you may not)

_-_-bear

OOOPS! almost forgot, what about the "DIN connector"?? At least they come now in a locking type... used to hate them, sorry Euro friends...
 
I love BNC for home gear. A great advantage is that BNC cables offer supreme value for money, having reliable shielding and far lower capacitance than ordinary audio cables, but at a fraction of the cost because they're sold in high quantities.
And you can always use BNC-to-RCA adapters if you need to, whereas you can't buy RCN-to-BNC adapters (AFAIK).
 
Neutrik is doing them- the brand name is REAN. I've switched over my phono equipment to them, they work great and are relatively inexpensive. Available at Mouser.

Having looked at the data sheet I notice a seperate earth tag for the shell. Is there enough room in there for some RF filtering on the ground wire if you used a suface mount cap?
 
Why XLR or BNC?
Go optical !!!

Apart from 'optical' is just a big con 😀

The 'con' been that people think it's the direct signal from the laser in a CD player - when it's nothing of the kind. It's merely the coaxial digital signal fed to an LED, and the reverse at the other end.

The only advantages of it are no earth loops, and high immunity from interference (on the optical part only).
 
Apart from 'optical' is just a big con 😀

The 'con' been that people think it's the direct signal from the laser in a CD player - when it's nothing of the kind. It's merely the coaxial digital signal fed to an LED, and the reverse at the other end.

People think that? I'd never heard that before, but I guess if they're thinking of a CD player specifically (and don't have an engineering background) it's understandable.

The only advantages of it are no earth loops, and high immunity from interference (on the optical part only).

Yes, that's the reason I assumed people liked it - for long signal runs in high noise environments. The only reason I have an optical link is because the Cubox I use to run RuneAudio has one built in, but no copper spdif connection. I would probably prefer a copper connection - less fragile, and the optical spdif connectors don't stay in place brilliantly.
 
Er, none, and I never implied the cubox had an analogue out. My post was in reply to another one commenting on optical interlinks in general, and the allusion to the design of my cubox was to indicate agreement with the sentiment of the previous post, i.e. that optical interlinks are pointless and the only reason I had one at all was through necessity because of the design of a source component I had. You know, a little diversion from the main topic of the thread. In the admittedly not very long 8 months you've been here haven't you noticed that such minor deviations happen quite often? It was certainly less jarringly less out of context than your criticism of a well meaning fellow poster, which I find slightly unnecessary and needlessly aggressive.
 
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