I don't believe cables make a difference, any input?

[Panicos K]

Originally Posted by cbdb

When was the last time you were in a studio. If not a computer something digital (point being thru a A/D converter)

Five days ago actually.There was "something digital"there too,but in this case it was not used.There were real instruments playing and we felt we didn't have any "right" to destroy them The tape will go to a producer who will make a limited number of LP's.

[restorer-john]

Originally Posted by Magura

Acceptance of reality, yes, but that has nothing to do with accepting that you claim to be able to hear something that happens at 17KHz+ at the age of 45+ .
If you can hear 17KHz+ at the age of 45+, you truly stand out, and will be one of VERY few.
At the age of 40, most have even kissed 15-16KHz goodbye.
Magura

HF hearing ability is only part of the story here.
At 43 I can EASILY hear an 18KHz fundamental, I can hear the 19kHz MPX notch filters engaged on tape decks and their effects. A 16kHz line freq from a CRT is still very annoying and there's numerous SMPS supplies I chase down in the house for high frequency noise I can HEAR.
How many dB my hearing is down at the extremes is totally irrelevant if the noise actually bothers me. The same is true for HF cable effects, especially when it's primarily the interface method and impedance matching/mismatching that causes the percieved 'differences'. Audio is less susceptible, only because the spectrum we are interested in is only 20KHz wide at the bottom end of the spectrum. Arguably it is the most important as we are attempting to derive the most perceived 'realism' from using it. It therefore makes sense to use anything that enhances that result. The entire discussion is a waste of time we could all be spending building, testing and mostly...listening.

[cbdb]

Im talking about the real world. Never mind the studio then, 98% of music released is on CD only.

[Panicos K]

Originally Posted by cbdb

Im talking about the real world. Never mind the studio then, 98% of music released is on CD only.

That's better,thanks

[cbdb]

I would love to hear your recording. How much to produce a small number of LPs these days?

[anatech]

Hi restorer-john,

I can hear the 19kHz MPX notch filters engaged on tape decks and their effects.

OMG, I haven't dealt with one of those in years! They are only found on cassette decks aren't they? Now, in tuners, I see them almost every time unless they use a pilot canceling system.

The same is true for HF cable effects, especially when it's primarily the interface method and impedance matching/mismatching that causes the percieved 'differences'.

Well, it's not cable mismatching as you might think in RF terms, but is certainly is a loading effect. The higher the source impedance, the more effect you will have. You will also have more noise pickup. The system for audio isn't matching the impedance, it's low Z out to high Z in. The only time this doesn't hold true is in phono cartridges and high end microphones. Also, a balanced line is one where the two signals are equal in amplitude, but opposite in phase. A proper zero is + 4 dBm in that case. Consumer gear almost never adheres to these standards though.

Do you restore cassette decks John? If so, where ever do you get the capstan bearings?? The other rubber parts are another issue again, and that is why I gave up on cassette deck service (and R-R) years ago.

-Chris

[Panicos K]

Originally Posted by cbdb

I would love to hear your recording. How much to produce a small number of LPs these days?

Actually my job and a friend's was to deliver the finished tape(on a Revox G36).We did it for fun and the experience.Our "fee" will be a few LP's.I can ask about the cost if you like to know.

[anatech]

Hi Panicos K,
You did that on a G-36? That's cool. I was having trouble getting parts way back when. The function switch assy is the most problem prone thing in these. Can't get them any more.

If you can, restore a PR-99 to work with. These will last longer - should anyway. It's a nice machine. If not, B-77. The A-77 wouldn't be my first choice for this.

The better Teac machines (like the 52 as opposed to the 32) are pretty good as well. I have a BR-20 I haven't used, still in box!

There is nothing that compares to what you can lay down on R-R tape. TAlk about impact! Good going Panicos!

-Chris

[cbdb]

Back to cable effects? Has anyone seen this on "the maxwell effect". It suggests that there is an optimal wire diameter for audio. Its quite convincing and complete with pages of maxwells equations to support the claims. And all tough its very scientific and backed with math, something dosnt ring true (the part that shows EM propagation in a wire at low audio fs is 1/25 the speed of sound). Anyone here remember enough differential equations to check the math. Any intelegent comments welcome.

http://www.stereophile.com/reference/1095cable/

[Panicos K]

Hi Chris,

Sad but true,our G36 will not live forever.Same problem with partrs here,my friend Nicholas has his last ones and keeping them like madThe result was really good.
I will tell him about your suggestions.
Oh....and those pictures I have promissed I'll send them this weekend.
Really