Diy Question thread

He asked you.

 

NO. The definition of Resistivity is resistance of the cable(in this example) which is 1 metre in length with a csa of 1m^2.

Do I need to specify length to know the resistance of a component, say a resistor ? Of course not.

your statement is clearly false.

 

I did. His home set-up. I said to Shin that when I played some punk-rock it didn't sound uncoloured or particularly low distortion as it got pretty muddled. I have said this to T before as well. I would put much of the blame on the valve amps, but he doesn't seem to think this is so.

...I didn't say he was full of it though

 

Hi,

Yet when we played some large scale classical stuff did the tutti's appear coloured or muddled? Just wanting to know...

Funny how quotes change, I would be surprised if you had described me to anyone as "full of it"....

Ciao T

 

To be honest I can't remember! I'll have to have another listen. I believe a system should play any type of music though if it is truly accurate.

 

Yeah sorry Thorsten. Full of it was a bit stong. The point is the same though.

 

Hi,

The Amplifiers certainly are still the weak point of the system (i really need to get them on the "operating table"), but also I think the Punk Rock played via the Media Center PC (includig Windows sound system, resampler etc.) and a Behringer DEQ2496 as DAC via optical input, as it was on a CDR which my main CD Player does not read (IIRC)? My memory is a bit hazy on that.

Anyway, if so, that is the audio chain for Movies, Soaps and background music at parties, not for critical listening....

Ciao T

 

Hi,

Well, this will have to be later in the year, this weekend you'll get ears full of a system moved much more into the mainstream, as I need a "real world" reference for ongoing commercial development work.... :MILD:

Ciao T

 

Having heard Thorsten's system (albeit briefly), I can say that it works way beyond the expectations I held when I saw the room and what was in it. We played neither punk rock nor large scale classical, though.

 

Markus,

We'll do that when you are over next time in October, by then I also should have finally finished my "Super 300B" SE Amplifier to get a much better grade of amplifier into the system....

Ciao T

 

lol

 

Resistivity is a property of a material. It is not dependant on the dimensions. Resistance is.

If you were making a resistor out of a single piece of wire, yes you would. The question was asked in the context of a cable so yes.

As for component resistors, they are made of different materials, or they are long pieces of wire wrapped up into a more convenient package, ie the manufacturer has done that dimensional work for you.

However, I will give you one more chance.

Is this different to resistivity and if so, how?

 

Thorsten, please explain to Isaac why he is wrong. He seems to be hard of understanding.

 

I am not asking Thorsten, I am asking you.

 

Why don't you explain it to Isaac? He's asked god knows how many times.

I'm sure Thorsten has much more important things to do than prove a point for you.

 

besides, this is what he originally stated :

''You would only need to specify those things in order to know resistance''
and now he argues that resistance depends on length, which is an entirely different issue.

funny how quotes change.

 

''If you were making a resistor out of a single piece of wire, yes you would. The question was asked in the context of a cable so yes. ''

heard of ohms law ?

v/I =r ?

it doesn't state anything about length, it gives a simple relationship between v , I and r.

 

lmao. Are you taking GCSE science this summer? If not, maybe you should consider it.

 

My point has not changed in any way. It is that you do not need to know anything about length or cross section to know about resistivity of a material. Your original point about choosing silver over copper was simply related to the resistivity of the material (ie silver is more conductive), but you were utterly unable to expand on the matter.

You twist and turn and flail about, accusing others of knowing nothing about things that you know nothing about.

And by the way, (rho*L)/A=R

 

you havent specified what rho, L,A or R actually are.As such, the equality is meaningless. The operative word is equality. In any case an equality does not specify that there exists a transformation between two sets a and b let alone that the function is continuous.
Furthermore, your use of the parenthesis is unjustified given that,
multiplication is commutative in the field R.