Kimber cable "how much"

spudbynight · 20 Jun 2012 at 15:43

I just bought some of them to hook up the system on my yacht. Does anyone know if they do Cat-5 cables as well? I also was hoping to get some top notch SATA cables for the HDs in my server - any recommendations?

arad85 · 20 Jun 2012 at 16:39

spudbynight said:
I just bought some of them to hook up the system on my yacht. Does anyone know if they do Cat-5 cables as well? I also was hoping to get some top notch SATA cables for the HDs in my server - any recommendations?

You don't need Kimber for that, computer components of similar differential quality are available on the high street. PC World/Dixons are one of the best known stockists of quality cabling.

I tested:

http://www.dixons.co.uk/gbuk/belkin-a3l791cp-cat5e-networking-cable-10m-10819404-pdt.html

against:

http://www.******.com/130650-xenta-cat5e-utp-patch-cable-blue-10-metre-plex-113 EDIT: Ahahaha eeee-buy--ah is a swear word here (but OCUK do a 10m Belkin one for £4.79) the one I linked to is £2.88 inc vat...

and found that not only were files transferred better - so much so I could sense the space around individual files in their directories much easier - making it easier to select them, but the fonts were rendered so much more clearly with the Belkin cable. Masterful and totally worth the 10x price differential.

Madashell · 21 Jun 2012 at 08:37

arad85 said:
I'm not sure what you're saying, other than we use physics to help design the cables we use. In general, for all applications other than home audio, sound engineering principles are used to design a cable suitable for the job (whether that be a particular frequency response, characteristic impedance or even flame retardent covering etc... )

I take it then from the "we" mention here you are a cable manufacture, are you Telleruim Q ?? :confused:

arad85 · 21 Jun 2012 at 08:44

Madashell said:
I take it then from the "we" mention here you are a cable manufacture, are you Telleruim Q ??

No, the "we" refers to the human race.

As in "the cables we use to transmit electricity from A to B" or "the fibre optic cables we use to cross the Atlantic". Substitute "they" if it makes you any happier.....

I notice you didn't pick up on any of the technical points I made

Madashell · 21 Jun 2012 at 17:48

arad85 said:
No, the "we" refers to the human race.

As in "the cables we use to transmit electricity from A to B" or "the fibre optic cables we use to cross the Atlantic". Substitute "they" if it makes you any happier.....

I notice you didn't pick up on any of the technical points I made

Most I did agree with but I am just interested in others (you,them) points of view and to what level of understanding folk have on this and many other subjects. My cometary or thoughts are irrelevant as I will be biased.

arad85 · 21 Jun 2012 at 18:05

Madashell said:
My cometary or thoughts are irrelevant as I will be biased.

If you are biased, are you a cable manufacturer then?

Madashell said:
So we can use bell wire for TV aerial cable then, do you mean resistance or impedance, and at what frequency, does the reducing area of the conductor at higher frequency in you view have no effect? As you are aware the thinner the conductor the higher the resistance now this changes at different frequencies does it no. And for example 60Hz the optimum diameter is 6mm after that the conductor area is wasted so we use multi-wires.

Madashell · 21 Jun 2012 at 20:06

arad85 said:
If you are biased, are you a cable manufacturer then?

I have designed Power Electronics for the last 40yrs or so.

arad85 · 21 Jun 2012 at 20:44

Madashell said:
I have designed Power Electronics for the last 40yrs or so.

But you only need to worry about 1 frequency

Madashell · 22 Jun 2012 at 09:13

arad85 said:
But you only need to worry about 1 frequency

Not at 100KW resonant converter running at 150KHz - 1.0MHz or 55VDC at 100KAmps or with any SMPSU or HF Piezoelectric drivers at 30KW - 2MW.
High frequency high current and low losses so no heating of cable due to poor choice.
So the relative 50Hz 60Hz is not a problem on resistive load but loads that draw current is spurt, spike and not at Zero Crossing, could present a problem.
So music is not a nice pure low harmonic signal so the 15KHz nominal hearing is nonsense, and to say that tweeters with capacitor loading prevent this signal to come through is rubbish unless it a has very sharp role off frequency.

Well with that I will go and bash another thick engineer for putting a LED across the mains again.

MAH

arad85 · 22 Jun 2012 at 17:53

What on earth is the application for high power convertors (12V is high voltage for the stuff I work with!).

As to music: well digital music is very nicely rolled off - most DACs effectively have a brick wall filter at 22kHz to stop any aliasing of the signal beyond it (well, they oversample to make the implementation of a brick wall filter easier). Also, any signal that is above hearing that can be heard will be intermodulation, and this will be present in the original recording at audible frequencies.

Madashell · 22 Jun 2012 at 18:24

arad85 said:
What on earth is the application for high power convertors (12V is high voltage for the stuff I work with!).

As to music: well digital music is very nicely rolled off - most DACs effectively have a brick wall filter at 22kHz to stop any aliasing of the signal beyond it (well, they oversample to make the implementation of a brick wall filter easier). Also, any signal that is above hearing that can be heard will be intermodulation, and this will be present in the original recording at audible frequencies.

100KV at 1Amp for Xray Generator 55VDC at 100KAmps battery charger for telephone exchange at Faraday House London.
Others for MIL SPEC and commercial but all nice toys compared to Audio work.

Here is a sample of some of the patents I have.
http://www.root2.ltd.uk/index.html