Production of Super Lumina speaker cables on hold?

I just received my pair of SL speaker cables only to find out they sit too loose in their sockets, to such an extent that they are about to fall out. My dealer tells me the production is on hold after Naim noticed the problem as well. Would this mean they have changed the make of the plugs? What are your experiences with the plugs?

Certainly an issue of poor quality control, given the stated level of these cables. To me this comes after I also returned a faulty and brand new N-272 the other week...

Original Post

The banana plugs on my SL speaker cables fit rather tightly in my speaker's sockets.

This sounds a very strange fault. Even if Naim have changed the banana plugs on the SL speaker cables, surely they are a standard size to ensure an interference fit into speaker sockets. And why on earth was this not tested/spotted before cables left the factory.

Plain weird.

Graham Clarke posted:

The very early SL speaker cables (as initially provided only to full Statement owners) didn't have split pin banana plugs (and said plugs weren't silver plated).  Do yours have split pins?

 

Mine are split pins and were produced in the last few weeks ago. Apparently a problem with the pins, which Naim should have been able to identify before selling these.

Got mine this week and they are extremely loose in the amplifier sockets a better fit in the speakers but I assume that is due to the type of socket used.

Out of interest I have measured the diameter of the banana plugs on the SL cables the maximum reading on the spring clip section is 4.08mm and if you look at the spring clip running along the length of the plug it hardly protrudes at all this on all plugs

The same measurement on the NAC A5 cable plug is 4.70mm and these have a nice interference fit.

So it looks as if JOERIBT has hit the nail on the head with his comment.

 

 

 

In my case the cable are not what I would call loose, but they are not a tight fit, I guess if they don't rattle in the socket then the contact should be fine and won't affect sound quality, I tried to move the banana plug sideways to see if there was any motion and there isn't, that said I can pull them out with the slightest of effort, they are definitely less tight than my NACA ever used to be.

I went back and checked all my SL speaker banana plugs at both ends.

Mine were in the first batch of SL leads which went on general; sale, once all the Statement stuff was launched.

B&W 802D Mk2 at one end, 500 at the other.

Very tight. So tight they are difficult to remove and were difficult to plug in now that I think about it.

I hope that's of some help for comparative purposes.

I was an early adopter of SL speaker leads and mine are the same as Harry's - difficult to insert and equally difficult to remove (a good thing I would suggest). The design and diameter of the latest iteration of SL speaker lead plugs must be rather different.

Bit of a boo boo by Naim if the new plugs are not intended to be so loose, and something that would have been easy to check before production and despatch. Which makes me think maybe the new plugs are supposed to be this way although it appears that some sets have been accepted back by dealers for return to HQ.

Very strange.

Slightly related.

MY S600s were a demo set and the Ovator-specific plugs for the speaker-end of the cable didn't come with them. I modded the little plastic boxes on my NACA5  cables so the pin spacing worked, but the pins are quite a loose fit on the sockets. I was not bothered, but am now paranoid, after reading this thread. Are Ovator sockets different diameter than standard sockets? Do I need special pins?

nigelb posted:

I was an early adopter of SL speaker leads and mine are the same as Harry's - difficult to insert and equally difficult to remove (a good thing I would suggest). The design and diameter of the latest iteration of SL speaker lead plugs must be rather different.

Bit of a boo boo by Naim if the new plugs are not intended to be so loose, and something that would have been easy to check before production and despatch. Which makes me think maybe the new plugs are supposed to be this way although it appears that some sets have been accepted back by dealers for return to HQ.

Very strange.

I don't think they were intended this way as they fall out of Naim's own amps! This is something that Naim should have avoided, especially since these are high-end cables with a high-end price.

winkyincanada posted:

Slightly related.

MY S600s were a demo set and the Ovator-specific plugs for the speaker-end of the cable didn't come with them. I modded the little plastic boxes on my NACA5  cables so the pin spacing worked, but the pins are quite a loose fit on the sockets. I was not bothered, but am now paranoid, after reading this thread. Are Ovator sockets different diameter than standard sockets? Do I need special pins?

It's good to have the special Ovator plugs if you use NACA5 or any other speaker cable, except for SL. Like your Ovators, my S-400 were ex-demo and came without the plugs. Just getting them now for completness sake.

SuperLumina bannanas fit into the Ovator sockets perfectly though and that is what I'm using now.

joeribt posted:
nigelb posted:

I was an early adopter of SL speaker leads and mine are the same as Harry's - difficult to insert and equally difficult to remove (a good thing I would suggest). The design and diameter of the latest iteration of SL speaker lead plugs must be rather different.

Bit of a boo boo by Naim if the new plugs are not intended to be so loose, and something that would have been easy to check before production and despatch. Which makes me think maybe the new plugs are supposed to be this way although it appears that some sets have been accepted back by dealers for return to HQ.

Very strange.

I don't think they were intended this way as they fall out of Naim's own amps! This is something that Naim should have avoided, especially since these are high-end cables with a high-end price.

Naim will have certainly tested the new banana plugs now used on the SL speaker cables. Indeed they would have certainly gone through some listening trials also. So all I can think is the bananas now used in production are different to the tested bananas (or are of a different spec.) to be so loose in the sockets. What we don't know is if the loose banana problem affects all, or just some, of the new SL cables.

Either way this appears to be a c**k up and I would have thought Naim would be all over it to get the situation resolved. As you have pointed out, these cables ain't cheap. I hope you get it sorted soon because these, as you probably know, are wonderful cables (when they are not falling out of sockets anyway). Certainly one of the most significant upgrades I have made to my system in recent years.

As Nigel implies above, from a discussion I had yesterday with Steve Hopkins, Naim do seem to be "all over it to get the situation resolved" - if you are having an issue then advice from HQ is as I've posted earlier on this thread, to contact your supplying dealer ASAP who will then take the necessary steps to sort things out.

Richard, called into my dealer today to discuss the problem he in turn
contacted Naim a new pair will be supplied shortly excellent service indeed.

Been using Naim since 1983 and this is the first time I've ever had a
problem with a Naim product very reassuring to have this level of service.
Allante93 posted:
Adam Zielinski posted:

Mine are OK - both sets.

"There and back again ā€“ NACA5 to SuperLumina and back to NACA5"

Are you sure Adam!

Allante93!

Positive

Now I use one set of SLs and one set of NACA5. The second set of SLs (extended home demo) went back to the dealer. Not because of its banana plugs though

Likes (0)
×
×
×
×