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Old 5th August 2013, 08:31 PM   #1
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Default BNC Connectors

Hi guys

I would like to ask about BNC connector types.

Should I change all my rca's to bnc together with spdif coax input and use it throughout the chain ?

If yes will it yield better sound quality ?

Which bnc to buy ?

And does crimp tool required or I could manage without ?


Thx


Ivan
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Old 5th August 2013, 08:37 PM   #2
DF96 is offline DF96  England
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I would not bother. Others would. An RCA is the wrong impedance, but short enough not to cause much reflection. Long tails on the connections to the socket could be worse than the socket itself. Those who know about RF wiring will know how to get it right, but they are also likely to be those who believe that the change is not worth doing.
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Old 5th August 2013, 08:40 PM   #3
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A BNC connector has a 50 or 75Ohm impedance. Your RCA/Phono connectors are more suited for higher impedance signals like audio cables etc.
If there were any improvement in the use of BNC, I feel sure Quad, NAD, Arcam etc would use them.
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Old 5th August 2013, 08:47 PM   #4
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Basically I have cheap chinese rca's on my amp and pre. I am not sure if I d better be buying sophisticated (more) expensive rca's or to go BNC route.
I know some even won't bother with either option and stick to the ordinary RCA.
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Old 5th August 2013, 08:49 PM   #5
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Decent connectors and cable should help if you have a lack of brightness in your signal. Don't purchase really expensive leads as it is not worth it.
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Old 5th August 2013, 08:52 PM   #6
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My seas 27 dxt tweeter is metal alloy and is revealing enough.
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Old 5th August 2013, 08:55 PM   #7
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If it works to your satisfaction ... I would leave it alone.
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Old 5th August 2013, 08:57 PM   #8
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Probably I can add bnc to my dac project and see how's it
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Old 7th August 2013, 07:53 PM   #9
macboy is offline macboy  Canada
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If you want to go BNC, make sure to get 75 Ω ones, and use 75 Ω cable (RG59, RG6, etc.).
Fortunately it is easy to tell them apart visually. A 50 Ω BNC has white dielectric in both the jack and plug; the 75 Ω ones have no dielectric. Refer to the attached.
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File Type: jpg BNC_50_75_Ohm.jpg (29.5 KB, 116 views)
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Old 8th August 2013, 05:33 AM   #10
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Thank you.
I ll try bnc with spdif first.
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