Speaker cables: asked 100 times and never fully answered

Posted by: feeling_zen on 20 October 2015

The topic of non Naim speaker cable compatibility and the risks associated with a mismatch have, I know, been discussed to death on the forum. But after searching through all the historical posts one thing is clear, there hasn't been a good technical answer on the parameters of compatibility. In case the point of this post isn't clear, let me state now this is purely about compatibility and not quality or cable recommendations.

 

Naim's statement on their website is clear:

 

If you wish to use other brands of speaker cable, they need to be of similar specification and definitely not of high capacitance, or of the ‘Litz’ type, as these can cause instability or damage to your Naim amplifier.

 

Current spec is rated as

 

Resistance: 9 milli ohms
Capacitance: 16pF/m

Inductance: 1uH/m

 

But actually this doesn't tell us much, if anything, meaningful. "High capacitance" is not value and "similar specification" is not a range of values.

 

For example, NACA5 is rated at 16pF/m for capacitance and I am using 5m runs Atlas Hyper 2.0 at 74pF/m from a 250.2. So that is several magnitudes higher which is a bad thing. Or is it? As mentioned, "low capacitance" has not been defined and for all we know, in their design parameters anything lower than 150pF/m (to pluck a number out of the air) is "low". Similarly, we also don't know the minimum values allowing the cable to present the power amps with the expected load. Tellurium Q Black has a low capacitance of 4pF/m which could be good or equally bad on a short run - we don't know.

 

The above argument has so far been simplified since the meaningful numbers here are the total over the length of the cable but everyone has been getting hung up on the cable specs itself. A 50cm run of NACA5 or a 50m run of the same is likely to present just as unstable load to a Naim amp as a 3.5m run of a totally unsuitable cable. Similarly, a "seemingly" unsuitable cable of sufficiently sort or long runs may present the correct load.

 

Does anyone know the actual metric Naim use for determining the operating parameters? I know some people have contacted Naim about a specific cable and been told things like "should work" or "an extra metre and you're okay".  Knowing the minimum and maximum values for the load as a whole, rather than the cable specification, would go a long way to helping people choose cables that are technically compatible. Regardless of how good or crap they might sound.

 

If no one knows I might try and get Naim to clarify this.

Posted on: 23 October 2015 by Jan-Erik Nordoen
Originally Posted by Huge:

... it's been discovered that these are some of the factors that correlate to  maintenance of psychological interest in the music being reproduced...

Hi Huge,

 

This sounds intriguing ; could you expand on those factors, and others, that correlate with maintenance of interest in music?

 

Thanks,

 

Jan

 

 

Posted on: 23 October 2015 by Huge
Originally Posted by Jan-Erik Nordoen:
Originally Posted by Huge:

... it's been discovered that these are some of the factors that correlate to  maintenance of psychological interest in the music being reproduced...

Hi Huge,

 

This sounds intriguing ; could you expand on those factors, and others, that correlate with maintenance of interest in music?

 

Thanks,

 

Jan

 

 

Jan, quick reference (as I'm going out)

https://en.wikipedia.org/wiki/..._Audio_amplification

I'll see it I can find a transcript of the relevant interview with Julian.

Posted on: 23 October 2015 by dsc
Originally Posted by Huge:

...it's been discovered that these are some of the factors that correlate to  maintenance of psychological interest in the music being reproduced.

 

Hi Huge,

 

Thank you for that. Very interesting.

 

FYI, the reason for my interest in this subject is that I have been considering the purchase of Naim amplification at some time in the future, having joined the Naim fraternity earlier this year by buying an NDX. I'm not sure, though, that I can accommodate speaker cables with a minimum length of 3.5m in my smallish room without coiling them up. That is probably a no-no because it would change the capacitance/inductance characteristics.

 

ATB,

 

David

Posted on: 23 October 2015 by Mike-B
Originally Posted by dsc:
I'm not sure, though, that I can accommodate speaker cables with a minimum length of 3.5m in my smallish room without coiling them up. That is probably a no-no because it would change the capacitance/inductance characteristics.

Hi David,  you're right about coiling,  it adds inductance

The approved way is to fold them as per the picture

Posted on: 23 October 2015 by Naimiac

one guy posted a very detailed and elaborated (and useful, in my view), 'review' of his new Vertere cables but nobody seemed to give a #*!t; yet, Vertere has probably much to do with the SuperLumina series... While everybody ran and bought TelluriumQ Black on the mere basis of a single 'I like it very much' post...

 

You Naim folks are definitely strange people.

N

Posted on: 23 October 2015 by The Strat (Fender)

I don't think EVERYBODY has run and bought TQ.

Posted on: 23 October 2015 by Dark Vader
Very nice and fair answer by Mister Richard Dane. Like very much all topics by Mister Paul Stephenson, Richard Stephenson, Polarbear... etc...



On Friday, October 23, 2015 11:33 AM, Naim Audio Forums <alerts@hoop.la> wrote:


Reply By Richard Dane: Speaker cables: asked 100 times and never fully an...== To reply by email, write above this line. == Hello, Dark Vader: We're sending you this notification because you are either following the forum, the content, or the author listed below. New Reply To Topic
| Subject: Speaker cables: asked 100 times and never fully answered Reply By: Richard Dane In: Naim Users / Hi-Fi Corner | |

Streamz, I'm not sure what you mean "by the book" regarding my answer.  I don't speak for Naim here - I'm just giving my opinion, as someone who used to work within the company, on the possible position of Naim re. any possible warranty claim made for damage possibly caused by operating the equipment contrary to instructions and warnings in the handbook.   I'm not sure how my opinion causes you angst here but if I am guilty of scaring you unnecessarily then I apologise.   View This Reply Sincerely, Naim Audio Forums https://forums.naimaudio.com To adjust your email notifications for this site, please update your notification settings. To suspend ALL email notifications from this site, click here. Powered By Hoop.la
Posted on: 23 October 2015 by Dark Vader
Like very much all positions of Mister  Richard Dane about possible position of Naim. It's fair !



On Friday, October 23, 2015 11:33 AM, Naim Audio Forums <alerts@hoop.la> wrote:


Reply By Richard Dane: Speaker cables: asked 100 times and never fully an...== To reply by email, write above this line. == Hello, Dark Vader: We're sending you this notification because you are either following the forum, the content, or the author listed below. New Reply To Topic
| Subject: Speaker cables: asked 100 times and never fully answered Reply By: Richard Dane In: Naim Users / Hi-Fi Corner | |

Streamz, I'm not sure what you mean "by the book" regarding my answer.  I don't speak for Naim here - I'm just giving my opinion, as someone who used to work within the company, on the possible position of Naim re. any possible warranty claim made for damage possibly caused by operating the equipment contrary to instructions and warnings in the handbook.   I'm not sure how my opinion causes you angst here but if I am guilty of scaring you unnecessarily then I apologise.   View This Reply Sincerely, Naim Audio Forums https://forums.naimaudio.com To adjust your email notifications for this site, please update your notification settings. To suspend ALL email notifications from this site, click here. Powered By Hoop.la
Posted on: 23 October 2015 by hafler3o
Originally Posted by The Strat (Fender):

I don't think EVERYBODY has run and bought TQ.

They should. Far better than the anxiety caused by a non-updating tracking number.

Posted on: 23 October 2015 by Hmack

Nainiac originally posted:

 

"....while everybody ran and bought TelluriumQ Black on the mere basis of a single 'I like it very much' post"

 

I very much doubt it. I myself have posted about my very positive view of the TQ Black and (especially the) TQ "Ultra Black" speaker cables and interconnects. I use TQ Ultra Black in my main system, but I'm afraid I can't really be described as being "one of these strange Naim folks", since there is not a Naim component to be found in this system. I do have a Naim streamer in a 2nd system, but don't use TQ there.

 

I actually purchased my cables and interconnects before the post to which I think you were alluding appeared, and only after an extended "no obligation" trial in my own system. Of course my reason for choosing to demo the TQs (amongst others) was the large number of positive views of their products available in the media. How else would one short-list products to audition? I rate the cable extremely highly, and certainly worth the not insignificant extra cost. It will be staying in my system indefinitely.

 

No reason why a post from the esteemed HH (sadly, no longer a member of the TQ fraternity) shouldn't encourage any other members of the forum from investigating the product. You obviously have a low regard for a number of members of this forum to believe that they aren't capable of making their own minds up about a product.

 

Incidentally, HH, I reckon you should ditch your SLs and NAC5, bring back your TQ Blacks and invest in a pair of Magnepan speakers. For the same sort of money as your SLs, you might just get a 2nd hand pair of 3.5Rs (or even 3.6Rs). These match perfectly with the TQs, and you'll have one hell of a system (assuming of course your Naim amp is capable of driving them).

 

Sorry, only joking - honestly!        

 

Posted on: 23 October 2015 by DavidDever

You have to be pretty unlucky to pick a cable that screws up your amp.

 

Not always - and it's not just Naim's amp designs that run afoul of this.

 

At the end of the day, though, most mainstream cable manufacturers have a pretty good grasp of this compatibility chestnut; often, it is the smaller, less-experienced cable vendors that don't - and I have no sympathy for them whatsoever; they have the same resources and tools available to them to insure that their designs don't push an amp into instability. Alternately, they can craft a known do-not-use-with-x list and properly propagate this throughout the retailer network.

Posted on: 23 October 2015 by hungryhalibut
Originally Posted by Hmack:

Nainiac originally posted:

 

"....while everybody ran and bought TelluriumQ Black on the mere basis of a single 'I like it very much' post"

 

I very much doubt it. I myself have posted about my very positive view of the TQ Black and (especially the) TQ "Ultra Black" speaker cables and interconnects. I use TQ Ultra Black in my main system, but I'm afraid I can't really be described as being "one of these strange Naim folks", since there is not a Naim component to be found in this system. I do have a Naim streamer in a 2nd system, but don't use TQ there.

 

I actually purchased my cables and interconnects before the post to which I think you were alluding appeared, and only after an extended "no obligation" trial in my own system. Of course my reason for choosing to demo the TQs (amongst others) was the large number of positive views of their products available in the media. How else would one short-list products to audition? I rate the cable extremely highly, and certainly worth the not insignificant extra cost. It will be staying in my system indefinitely.

 

No reason why a post from the esteemed HH (sadly, no longer a member of the TQ fraternity) shouldn't encourage any other members of the forum from investigating the product. You obviously have a low regard for a number of members of this forum to believe that they aren't capable of making their own minds up about a product.

 

Incidentally, HH, I reckon you should ditch your SLs and NAC5, bring back your TQ Blacks and invest in a pair of Magnepan speakers. For the same sort of money as your SLs, you might just get a 2nd hand pair of 3.5Rs (or even 3.6Rs). These match perfectly with the TQs, and you'll have one hell of a system (assuming of course your Naim amp is capable of driving them).

 

Sorry, only joking - honestly!        

 

Maggies might be interesting if (1) they worked three inches from the wall and (2) they didn't have the same name as someone I detest. 

 

The TQ is a super cable and I'm delighted if my ramblings have helped some to better sound. It's just that NACA5 works so much better with SL2s. They are truly marvellous speakers and I'm happy to slum it with NACA5 if that is what's required. 

Posted on: 23 October 2015 by Hmack

Hungryhalibut posted:

 

"Maggies might be interesting if (1) they worked three inches from the wall and (2) they didn't have the same name as someone I detest".

 

Oh no! Now you've spoilt them for me as well. I had never associated them with ...........

 

 

Posted on: 23 October 2015 by feeling_zen
Originally Posted by hafler3o:
Originally Posted by The Strat (Fender):

I don't think EVERYBODY has run and bought TQ.

They should. Far better than the anxiety caused by a non-updating tracking number.

Some of us like to slum it with Atlas Hyper 2 on their 250.2.

Posted on: 24 October 2015 by Huge
Originally Posted by Naimiac:

one guy posted a very detailed and elaborated (and useful, in my view), 'review' of his new Vertere cables but nobody seemed to give a #*!t; yet, Vertere has probably much to do with the SuperLumina series... While everybody ran and bought TelluriumQ Black on the mere basis of a single 'I like it very much' post...

 

You Naim folks are definitely strange people.

N

I've looked at the Vertere website, and there's a serious lack of any real specifications.

 

No electrical characteristics, no cable cross-section area data, cryptic descriptions such as "x5 Conductors, Pulse Multi Type", "x11 & x1 Conductors, Pulse Multi Type", and the cables are shielded (which greatly increases capacitance if you use the shield).

 

No wonder not many people use them - they don't even give an honest description of what they're selling, just marketing hype masquerading as specifications.

Posted on: 24 October 2015 by feeling_zen
Originally Posted by Huge:
Originally Posted by Naimiac:

one guy posted a very detailed and elaborated (and useful, in my view), 'review' of his new Vertere cables but nobody seemed to give a #*!t; yet, Vertere has probably much to do with the SuperLumina series... While everybody ran and bought TelluriumQ Black on the mere basis of a single 'I like it very much' post...

 

You Naim folks are definitely strange people.

N

I've looked at the Vertere website, and there's a serious lack of any real specifications.

 

No electrical characteristics, no cable cross-section area data, cryptic descriptions such as "x5 Conductors, Pulse Multi Type", "x11 & x1 Conductors, Pulse Multi Type", and the cables are shielded (which greatly increases capacitance if you use the shield).

 

No wonder not many people use them - they don't even give an honest description of what they're selling, just marketing hype masquerading as specifications.

Same could be said for TQ cables. No specs unless you count unofficial ones measured by users and posted elsewhere. Yet there's no shortage of TQ users.

Posted on: 24 October 2015 by Mike-B
Originally Posted by Huge:
.............   marketing hype masquerading as specifications.

Same can be said of TQ - marking hype masquerading as we know best.

Posted on: 24 October 2015 by Naimiac
Originally Posted by Huge:
Originally Posted by Naimiac:

one guy posted a very detailed and elaborated (and useful, in my view), 'review' of his new Vertere cables but nobody seemed to give a #*!t; yet, Vertere has probably much to do with the SuperLumina series... While everybody ran and bought TelluriumQ Black on the mere basis of a single 'I like it very much' post...

 

You Naim folks are definitely strange people.

N

I've looked at the Vertere website, and there's a serious lack of any real specifications.

 

No electrical characteristics, no cable cross-section area data, cryptic descriptions such as "x5 Conductors, Pulse Multi Type", "x11 & x1 Conductors, Pulse Multi Type", and the cables are shielded (which greatly increases capacitance if you use the shield).

 

No wonder not many people use them - they don't even give an honest description of what they're selling, just marketing hype masquerading as specifications.

Shall we take a close look at SuperLumina, then?

 

Best

N

Posted on: 24 October 2015 by Huge
Originally Posted by Naimiac:
Originally Posted by Huge:
Originally Posted by Naimiac:

one guy posted a very detailed and elaborated (and useful, in my view), 'review' of his new Vertere cables but nobody seemed to give a #*!t; yet, Vertere has probably much to do with the SuperLumina series... While everybody ran and bought TelluriumQ Black on the mere basis of a single 'I like it very much' post...

 

You Naim folks are definitely strange people.

N

I've looked at the Vertere website, and there's a serious lack of any real specifications.

 

No electrical characteristics, no cable cross-section area data, cryptic descriptions such as "x5 Conductors, Pulse Multi Type", "x11 & x1 Conductors, Pulse Multi Type", and the cables are shielded (which greatly increases capacitance if you use the shield).

 

No wonder not many people use them - they don't even give an honest description of what they're selling, just marketing hype masquerading as specifications.

Shall we take a close look at SuperLumina, then?

 

Best

N

"The Super Lumina range is the result. Consisting of audio interconnects andspeaker cables, the range is capable of meeting the demands of Statement but is equally at home in other Naim 500 and Classic Series systems."

 

 

So we know it's intended application then.  No guarantees for non-Naim systems though.

 

Seems clear enough to me.

Posted on: 25 October 2015 by Naimiac

Well, it is equally clear to me that:

 

- The recent line of Naim integrates and power amps, up to a certain level, is perfectly safe with non-NACA cables, as per manual;

 

- maxbertola had apparently direct contact with Vertere and was suggested the type of cables to use;

 

- The SL range of cables seems to have close relationship with Vertere products, and

 

- SL speaker cables, btw, are as shielded as the Vertere ones. So how is it that SL is not creating capacitance issues with Naim while Vertere could?

 

As for TQ cables, I browsed a little and wasn't able to find anything about their specs, which the factory (?) seems not enthusiastic about giving; they look like the NACA, but their cross section is arguably much thinner, which could mean nothing and everything. Yet, close to nobody (a quick survey with the 'search' function) seemed to consider this side of the aspect.

 

But I have no personal interest in Tellurium cables (btw, did anybody bother to find what exactly tellurium is, and how, if ever, this has any concrete application in the cables? Because, I too have access to websites..); I was only pointing out how strange it is that a cable with no given spec, no ascertained relationship or compatibility with Naim has been enthusiastically adopted by many with no fear or worry, while another, with a much more documented relationship with Naim, and which has been 'reviewed' much more accurately by a poster who, it seems, is perfectly happy with the sound of it and not only is not experiencing troubles but - if memory and experience are not abandoning me - is not also a complete foreigner to sound and music, is the object of diffidence if not indifference.

 

But, as I said, the ways of this forum and its people are funny indeed.

 

N

Posted on: 26 October 2015 by Huge
Originally Posted by Jan-Erik Nordoen:
Originally Posted by Huge:

... it's been discovered that these are some of the factors that correlate to  maintenance of psychological interest in the music being reproduced...

Hi Huge,

 

This sounds intriguing ; could you expand on those factors, and others, that correlate with maintenance of interest in music?

 

Thanks,

 

Jan

 

 

Jan,

 

Here's an old Naim sales brochure,

http://www.avoptions.com/downl...or-Brochure-1990.pdf

look at page 12

Posted on: 26 October 2015 by Jan-Erik Nordoen

Great stuff! Thanks for the followup Huge.

 

Jan

Posted on: 26 October 2015 by AussieSteve

I spoke to the owner of Voodoo Cable (USA) about his cables for my system, and in regard to the issue between cable and amp, particularly the NAP200, Bruce states, " It appears Naim uses a current output regulator network that conforms with the stringent low power consumption regulations for CE certification. This is common among component manufacturers with distribution to EU markets. So their recommendation, albeit extremely conservative, for low capacitance and modest inductance speaker cable is likely within that rationale. But their recommendations for their extremely long cable lengths contradict that recommended specification for capacitance , because with added cable length line capacitance and therefore inductance increase exponentially."  Lower line capacitance is what the NAP200 wants to drive it's speakers. Bruce is an electrical engineer.

Posted on: 26 October 2015 by Allante93
Very interesting, I always wondered about that cable length. Min. 3.5 m. I'm no mathematcian, but I think thats the 12 feet Naim is talking about. I'm cheating, I'm only using 7.5 feet.
Furthermore, I'm cheating on cable type, Linn K-20.

Funny thing, Cdx2/Hi Cap DR/282/250.2/200/250.2/PMS Tri-Amped Briks don't sound bad!
Posted on: 30 October 2015 by Checkthisout68

I have just received "the other" cable from somewhere nearby Turkey and I must say: Awesome.

 

Straight out of the box it changed my standpoint regarding the cable discussion. Really worth a try!

 

What is it doing? PRAT still right there, however it softens the edges and without doubt delivers a lot more detail with just a little less stage maybe. It still runs in and might even get better than this. 14 days money back guarantee makes it lots of fun and little risk.

 

Best regards

Chris