Tellurium Q Black minimum cable length

Posted by: themrock on 14 January 2018

Someone wrote on  Naim Facebook, that if you use the Tellurium, then you can use cable length shorter than 3;5 m, is that correct.

I have in my mind, that, if you run a modern black box, that there is no need to run the Naca5 >3:5 m, which i would prefer.

My amp is the Nap 300 DR.

 

 

Posted on: 14 January 2018 by Huge

No, still keep to 3.5m (and 5m - 7m is preferred sonically).

TQ Black has very similar electrical characteristics to NACA5, NACA4 and Linn K20.

Posted on: 14 January 2018 by wenger2015

I had always thought as Huge says in his reply but having emailed TQ directly sometime ago, the 3.5 length is not necessary.....that’s with TQ cables...

Posted on: 14 January 2018 by Richard Dane

I would think it wisest to take the advice of the amplifier maker here. Wouldn’t you? 

Posted on: 14 January 2018 by Innocent Bystander

Was the “someone” on Facebook a representative of Naim, or quoting the actual inductance of the TQ cables in support of their statement? Given that the minimum cable length depends on the inductance then assuming Huge’s awareness of their inductance is correct, then that length is correct - otherwise for a definitive answer, get confirmation of their inductance either from  TQ or by measurement, and assess against Naim’s declared minimum inductance requirement.

Posted on: 14 January 2018 by themrock

The guy was not a Naim representative.

Do you have Facebook, if, go to the official Naim Group, you can follow the conversation.

He had asked Tellurium, they said a lot of Naim Users are using shorter length than 3;5 without any problem.

If you have the old olive ones, you should use 3,5 m, dor the black goxes it dosnt matter, they say.

Posted on: 14 January 2018 by Huge

Well they are wrong!

With most types of speakers you can get away with shorter cables, but the sound will be affected, and with some speakers shorter cables CAN damage the amp.

Just because that particular person doesn't know of any cases, doesn't mean that it hasn't already occurred and that it won't occur in the future.
It simply means that that person has limited knowledge and doesn't properly understand the reason for MINIMUM cable length specified by the amp designers.

Posted on: 14 January 2018 by Innocent Bystander
themrock posted:

The guy was not a Naim representative.

Do you have Facebook, if, go to the official Naim Group, you can follow the conversation.

He had asked Tellurium, they said a lot of Naim Users are using shorter length than 3;5 without any problem.

If you have the old olive ones, you should use 3,5 m, dor the black goxes it dosnt matter, they say.

Facebook is the spawn of the Devil (IMO)

Posted on: 14 January 2018 by themrock

I found an older thread here on the forum

https://forums.naimaudio.com/to...um-q-question?page=1

“I also read in the Forum that Naits are less fuzzy about cable length, but to be on the safe side I emailed Phil from Naim. He didn't confirm these rumours in the Forum, but said that 3.5m minimum (when using NACA5) remained in place for Naits. When using different cables, Phil recommended approaching manufacturers for advice.“

What are Naits?

Posted on: 14 January 2018 by Huge
themrock posted:

I found an older thread here on the forum

https://forums.naimaudio.com/to...um-q-question?page=1

“I also read in the Forum that Naits are less fuzzy about cable length, but to be on the safe side I emailed Phil from Naim. He didn't confirm these rumours in the Forum, but said that 3.5m minimum (when using NACA5) remained in place for Naits. When using different cables, Phil recommended approaching manufacturers for advice.“

What are Naits?

NAIm inTegrated amplifiers.

Posted on: 14 January 2018 by Richard Dane
themrock posted:

...When using different cables, Phil recommended approaching manufacturers for advice...



I think what Phil mean't there was to approach the cable manufacturers for advice on the two things that you'll need to know about their cables to judge suitability and length for Naim amplifiers; inductance and capacitance.

Posted on: 16 January 2018 by themrock

Its me again ????

so i read the German manual of the Nap 300 DR, there is no word about minimum cable lenght.

Only that they recommand Naim Cables and that you shouldnt use „ High Capacity“ cables.

Posted on: 16 January 2018 by Richard Dane

Have you read the FAQ?

Speaker Cable for Naim amplifiers

And from the manual did you read this?

1.2 Loudspeaker Cables

Loudspeaker cables are vitally important. They should each be at least 3.5 metres long and of equal length. The recommended maximum is normally 20 metres although longer cables may be viable with some Naim amplifiers.

Some Naim amplifiers are designed only to work with Naim loudspeaker cable and using alternatives may degrade the performance or even damage the amplifier.

Posted on: 16 January 2018 by themrock

No ????

Posted on: 16 January 2018 by Timo

Considering that you have a power amp that costs nearly 8K, I don't think, to be honest, it's wise to be "stingy" when replacing the speaker cable. Just swipe the credit card, and enjoy the music... 

Posted on: 16 January 2018 by ChrisSU
themrock posted:

Its me again ????

so i read the German manual of the Nap 300 DR, there is no word about minimum cable lenght.

Only that they recommand Naim Cables and that you shouldnt use „ High Capacity“ cables.

I think you meant to say "high capacitance'

Naim's 'Power Amp Manual' strangely does not mention cable length, but there is also the 'Amplifier Reference Manual' which says:-

'1.2 Loudspeaker Cables

Loudspeaker cables are vitally important. They should each be at least 3.5 metres long and of equal length. The recommended maximum is normally 20 metres although longer cables may be viable with some Naim amplifiers.

Some Naim amplifiers are designed only to work with Naim loudspeaker cable and using alternatives may degrade the performance or even damage the amplifier. Other Naim amplifiers can be used with any high quality loudspeaker cable although we recommend that Naim loudspeaker cable is used. Naim loudspeaker cable is directional and should be oriented so that the printed arrow points towards the speakers. The Naim loudspeaker connectors supplied are designed to comply with European safety legislation and must be used.'

Posted on: 17 January 2018 by themrock
Timo posted:

Considering that you have a power amp that costs nearly 8K, I don't think, to be honest, it's wise to be "stingy" when replacing the speaker cable. Just swipe the credit card, and enjoy the music... 

No its not about the money, its about the look????,i have a 3,5 m Naca 5, but i didnt need that length, i didnt like the „unused“ part of the cable and its such a stiff beast.

But i have now learned my lession, you cant always get what you want????

Btw. could i use a 3,5 m Tellurium, because in the manual is written

“6.3 Loudspeaker Cable and Connectors
Only Naim Audio speaker cable should be used to connect a loudspeaker to the output of the NAP 300.“

Posted on: 17 January 2018 by Huge

You can fold it concertina style and hide it behind something.

If you need to deal with the stiffness, heat it with a hair drier where you need it to bend.

Posted on: 17 January 2018 by Mike-B

Some NACA5 folding & hiding ideas

 

Posted on: 17 January 2018 by Beachcomber

Won't those foldings change the inductance and capacitance (presumably increasing it)?

Posted on: 17 January 2018 by themrock

Yes i have done the folding, but dont like the look under the rack, so my dream was to have a shorter one

Posted on: 17 January 2018 by Mike-B
Beachcomber posted:

Won't those foldings change the inductance and capacitance (presumably increasing it)?

No,  whilst rolling a cable into a circle adds inductance, & more rolls (turns) multiplies it.    Folding,  first one half turn  followed by a half turn in the opposite direction,  cancels the inductance gain.

Posted on: 17 January 2018 by Huge

However even when running it in a coil, the outward current flows in one direction and the return current flows in the opposite direction largely cancelling out the inductance of the coil anyway.

Posted on: 17 January 2018 by 1GiantLeap

Mike-B

Thanks for posting that - very helpful.

Posted on: 17 January 2018 by themrock

To bring it to an end, its realy crazy.

Seems nobody knows it.

i have contacted Naim Germany, they said from a technical point, no problem to use shorter length than 3,5 meters with a Nap 300 DR, from getting an optimal sound, they advice 3,5 meters as minimum.

Then i thought double check and contacted Naim England, they said 3,5 meter minimum.

 

Posted on: 17 January 2018 by Richard Dane
themrock posted:

...Seems nobody knows it...

...Then i thought double check and contacted Naim England, they said 3,5 meter minimum...

 

So, at least somebody knows...