Author Topic: Nordost,Cardas,Kimber,MIT, spk cable,I/C, PC electrical properties (L,C,R)  (Read 1849 times)

jb

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Re: Nordost,Cardas,Kimber,MIT, spk cable,I/C, PC electrical properties (L,C,R)
« Reply #15 on: December 19, 2016, 11:04:00 PM »
update with Cardas cable etc... Cardas cable has high inductance and resistance at high frequency, so will be a warm cable as it roll off high freq.

instek_88

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Re: Nordost,Cardas,Kimber,MIT, spk cable,I/C, PC electrical properties (L,C,R)
« Reply #16 on: December 22, 2016, 08:19:18 PM »
The quality of cables are beyond the measurement of LCR values. I give some examples:

(1) How the cables are terminated will make a difference
(2) What plating of the termination will make a difference
(3) How the cable response to microphonics will make a difference
(4) The shielding of the cables will make a difference. This will affect how much noise the cable will pick up along its length and how much noise it will emit
(5) Even how you connect the cables to the socket makes a difference. The orientation, the contact pressure, and etc ,will affect the sound.

etc ... etc ... etc ...

jb

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Re: Nordost,Cardas,Kimber,MIT, spk cable,I/C, PC electrical properties (L,C,R)
« Reply #17 on: December 31, 2016, 06:11:14 PM »
The Cable measurement of LCR values will show a general trend of cable design of a particular brand or design technique. It will capture for example if you use different plating material with lower conductivity and show lower resistance. or flat sheet design like Nordost cable tends to have lower capacitance as compare to MIT cable that have high capacitance. Hopefully with more data base we can see a general trend of cable characteristic for "warm cable" vs " bright cable".

Anyway, attached is the latest update of additional cable and also include parallel capacitance measurement.

WCK

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Re: Nordost,Cardas,Kimber,MIT, spk cable,I/C, PC electrical properties (L,C,R)
« Reply #18 on: January 08, 2017, 03:11:32 PM »
Just do a quick measurement of the Nordost speaker cable:

Blue heaven:
Freq = 1Khz , L=3.3uH , R=0.06 Ohm ,  when speaker wire coil together and measured as  L=11uH , R=0.06 Ohm

Heimdall:
freq = 1 Khz, L=3.55uH , R=0.04 Ohm

From this measurement , it can be concluded that higher tier cable of same brand  the resistance will be lower, and don't laugh at some user that use clip to float the cable in air, as by doing so they just reduce the self inductance of the speaker cable. But actually all u need to do is just lay the cable straight so that it does not cross and the cable inductance will reduced. Also as the cable resistance is extremely low, it makes sense to have the speaker contact clean properly and remove the oxidation so u get the best low resistance contact.

In the other thread I was inform a 0.0xOhm speaker cable resistance was high. If so, then most of the speakers cables have similar resistance levels. If so, can't be high right? Should be more like average, based on your test results.
« Last Edit: January 08, 2017, 03:23:56 PM by WCK »

jb

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Re: Nordost,Cardas,Kimber,MIT, spk cable,I/C, PC electrical properties (L,C,R)
« Reply #19 on: January 08, 2017, 11:04:22 PM »
I think for speaker cable design, those in the mid tier price range , the resistance will be in 0.0x Ohm range, their highest tier price range then will be in 0.00X Ohm range, as they use lower AWG wire to lower the resistance but will cost more.

But if your resistance level is at 0.X Ohm, then I think this cable will have too much voltage drop during short bass burst....
« Last Edit: January 09, 2017, 11:00:40 AM by jb »

jb

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Re: Nordost,Cardas,Kimber,MIT, spk cable,I/C, PC electrical properties (L,C,R)
« Reply #20 on: January 08, 2017, 11:59:58 PM »
For Nordost Hemidall spk cable design as an example: it used 9 pcs of 22 AWG copper wire... so base on 22 AWG chart of 0.053 Ohm/m, a 3m cable of one wire resistance is 0.053 X 3= 0.159 Ohm @ 3m

Thus 9 pcs of wire will give a total resistance of 0.017 ohm @ 3m , but actual measured resistance is at 0.047 Ohm which is higher due to dielectric loss of material .

For Nordost Ordin 2 use 13 pcs of 20 AWG wire and will give a calculated resistance of 0.007 Ohm @ 3m

jb

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Re: Nordost,Cardas,Kimber,MIT, spk cable,I/C, PC electrical properties (L,C,R)
« Reply #21 on: January 23, 2017, 07:58:44 PM »
Today do an actual Epos speaker impedance measurement with and without speaker cable connected. The measurement shown that impedance is not constant across freq from 50hz to 100Khz. with and without spk cable does not change the resistance , but it will change the capacitance and inductance that the power amplifier will feed to and sound may change with different spk cable as impedance can be different now.


jb

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Re: Nordost,Cardas,Kimber,MIT, spk cable,I/C, PC electrical properties (L,C,R)
« Reply #22 on: November 23, 2017, 12:29:42 PM »
Updated with Nordost Frey speaker cable measurement:


jb

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Re: Nordost,Cardas,Kimber,MIT, spk cable,I/C, PC electrical properties (L,C,R)
« Reply #23 on: November 23, 2017, 12:32:56 PM »
updated with Nordost Frey power cord measurement:


WildRain

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Re: Nordost,Cardas,Kimber,MIT, spk cable,I/C, PC electrical properties (L,C,R)
« Reply #24 on: November 26, 2017, 01:50:03 PM »
updated with Nordost Frey power cord measurement:



V.V interesting bro...wondering how the heimdall would compare
Sony Z1es | Densen DM20 | DM30 | Dynaudio S1.4

Nordost Heimdall | Baldur | QED Genesis

Maestro | 7N-4030 | Yakars | Plixir Elementa PC

jb

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Re: Nordost,Cardas,Kimber,MIT, spk cable,I/C, PC electrical properties (L,C,R)
« Reply #25 on: November 27, 2017, 02:48:22 PM »
I think for Heimdall the cable resistance will be higher as the wire use will be less...