Hi Guys.
I fully agree with the sentiments on BNC connectors, while the bulk head sockets are usually not too bad, the crimped-on plugs were horribly unreliable. At work our test equipment and mobile data acquisition sensor cabling were all BNC, we became rather good at replacing the BNC connectors incredibly quickly.
It was always standard practice to test and inspect each BNC plug on every cable before taking them out into the field as well as packing a few spare cables to cover the ones that would fail in service.
My local electronics shop sells posh looking gold-plated, bulk-head mounted RCA sockets for a few dollars each. Im sure Maplins, Mouser, Farnell (insert retailer of your choice here) will have an equivalent product. Look for the sockets that are insulated from the bulk-head/rear panel (like the ones in the attached photos), these are probably considered better but probably not that important for this application.
I replaced the BNCs with some of those posh RCAs on my NAC72 and never looked back. BNC is good for 50 OHM RF connections but a MM or MC cartridge is not RF and the NAIM preamp is bandwidth limited anyway so RF is never going to be an issue.
I must admit, as much as I like the look and feel of the naim gear I just dont get the BNC thing.
Happy Listening
LPSpinner
I fully agree with the sentiments on BNC connectors, while the bulk head sockets are usually not too bad, the crimped-on plugs were horribly unreliable. At work our test equipment and mobile data acquisition sensor cabling were all BNC, we became rather good at replacing the BNC connectors incredibly quickly.
It was always standard practice to test and inspect each BNC plug on every cable before taking them out into the field as well as packing a few spare cables to cover the ones that would fail in service.
My local electronics shop sells posh looking gold-plated, bulk-head mounted RCA sockets for a few dollars each. Im sure Maplins, Mouser, Farnell (insert retailer of your choice here) will have an equivalent product. Look for the sockets that are insulated from the bulk-head/rear panel (like the ones in the attached photos), these are probably considered better but probably not that important for this application.
I replaced the BNCs with some of those posh RCAs on my NAC72 and never looked back. BNC is good for 50 OHM RF connections but a MM or MC cartridge is not RF and the NAIM preamp is bandwidth limited anyway so RF is never going to be an issue.
I must admit, as much as I like the look and feel of the naim gear I just dont get the BNC thing.
Happy Listening
LPSpinner
