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Why so few devices with BNC's??

It's an ongoing amazement to me how many manufacturers use RCA's for 75 ohm digital connections.   Is this really to just save a couple bucks?  Lower end McIntosh stuff has RCA's as does most Japanese gear regardless of price.  It's not like BNC's are really so exotic, and 75 ohm cables are readily available.  In fact, the general lack of inputs is an annoyance.  Not everybody wants to use USB or Toslink.  Rant over. 😠  Thanks for reading.

[Please, this is NOT a thread to list all the exceptions.]

128x128kletter1mann

Showing 2 responses by mikelavigne

mikelavigne
2,156 posts
 

in my system i mostly use BNC’s for my interconnects.

but it’s not that simple.

i use the darTZeel ’zeel’ BNC 50 ohm interface between my preamp and amps, and between my tape repro and my preamp. then i use RCA’s between my phono pre and preamp, and XLR’s between my dac and preamp. 2 of my sources do not have the proper interface designed into them so i can’t use the ’zeel’ 50 ohm with them.

the ’zeel’ BNC 50 ohm interface is superior to either RCA or XLR. part of it is the robustness of the BNC connection itself with it’s positive secure mechanical lock, but mostly it’s precise impedance matching between components which greatly reduce signal corruption. RCA and XLR will cause echo’s in the signal.

Herve Deletraz of darTZeel uses the ’zeel’ interface for all darTZeel products. there are a few other products out there, such as CH Precision (one of the owners of CH are actually family with Herve) that also include the 50 ohm BNC connections in their products.

properly executed, the 50 ohm BNC interface will sound the same up to .5 kilometer.

mikelavigne
2,156 posts
 

@thespeakerdude

darTZeel only makes analog products except for one integrated amp with a dac in it. the ’zeel’ 50 ohm interface is strictly analog only.

Herve Deletraz of darTZeel wrote an article published in the Sept 2001 issue of Stereophile about Impedance Matching in audio. it’s quite technical. but if you doubt the logic of the 50 ohm BNC advantage for analog interconnects, then you should have the tech knowledge to follow it. it’s serious.

https://www.townshendaudio.com/PDF/Impedance_matching%20deletraz%20paper.pdf

he wrote that article before he launched his audio company where he applied the principles mentioned and included the ’zeel’ BNC 50 ohm interface in all his products.

i have owned darTZeel amps and preamps since 2005 and always used ’zeel’ 50 ohm interconnects. compared them many times to conventional interconnects and always preferred the ’zeel’.

you have a right to your opinions, but there is real science behind the 'zeel'.

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