Hey Tim,
They were talking about rca being the worst kind of connector so i thought maybe straight wiring the whole setup (no connectors)
You’d still have wire just soldered connections.....shouldn’t be too hard if it was an all stationary/permanent system.
Bob
They were talking about rca being the worst kind of connector so i thought maybe straight wiring the whole setup (no connectors)
You’d still have wire just soldered connections.....shouldn’t be too hard if it was an all stationary/permanent system.
Bob
Gotcha Bob, I think that would give me a sort of claustrophobia.
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200 to 300 Pf per foot.
The issue is the RF impedance of the cable. If the RF impedance is low, as the speaker unloads at high frequency, the energy storage in the cable becomes capacitive. If that occurs before the amp reaches unity gain, the amp will oscillate.
Jn
must be one of those SS amps with unstable 25 db sorta feedback through bootstrapping.
I would not use any of these. .... I can use my tube amp to drive a purely capacitative load without any issues, the OT is massive and can take full 50 watts loads without melting any insulation, talk about a SS transistor which is already at 40 - 50 C , if it takes another 20 watts it will run into destroy mode, unless it has some compensation , even then, it will go into oscillation with the feedback or something to self-destroy, crap amps.
and amp that 'breaks' (kapput) because of 'inductive wires' (LOL) is good for garbage.
To sum up the lesson on wires, lets take a break with this:
YouTube
I would not use any of these. .... I can use my tube amp to drive a purely capacitative load without any issues, the OT is massive and can take full 50 watts loads without melting any insulation, talk about a SS transistor which is already at 40 - 50 C , if it takes another 20 watts it will run into destroy mode, unless it has some compensation , even then, it will go into oscillation with the feedback or something to self-destroy, crap amps.
and amp that 'breaks' (kapput) because of 'inductive wires' (LOL) is good for garbage.
To sum up the lesson on wires, lets take a break with this:
YouTube
Thanks Jn,
Seems like measuring RF impedance requires some sort of antenna Rf meter?
Suppose the easiest way too avoid issue would be to keep speaker wire capacitance low.
1 ft vs 20 ft, I don't think it matters, unless you are driving an antenna, which I doubt, because you have a low resistance load at the end of the loop.
you can drive antennas with 100 meters of wires before without major issues with 1000 watts, so your speakers with 2 watts and 20 foots are just like bacon and eggs.
Definitely not, my speaker cables are 240V solid copper twin core mains wiring approx 18ga. 99c/m at Bunnings when I bought it. Having worked as a repair and calibration tech until I retired I am aware of the placebo effect of wires until you get to RF frequencies which is whole different ball of wax.
IMHO, no as the room will have the biggest influence on the sound you hear.
Connectors are important, in that they need to make good contact, forget exotic materials good old copper is fine. My speaker cables have no connectors they are stripped long and bent in a hook that wraps around the post. My posts are copper banana terminals from the old parts bin.
I cannot measure the difference in the frequency response from the amplifier input to the speaker terminals using squarewave.
There were several. But an early and prolific "Lab" was Hirsch-Houck Laboratories.
I suspect it was a way for underemployed free-lance writers/hobbyists to fund better test gear in a garage or den "lab". Hirsch did most of the reports, over about 37 years. Mostly they were captive to Z-D magazines (but that was a lot of titles).
AES obit
cynical remarks about Hirsch
1961 HiFi/Stereo Review issues
I also learned that the next decade will be dull for music, see attached:
And yes, my beard is grey.
Attachments
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It does not mean that it could not be measured though and I assume besides freq. response, there are other factors such as RLC and other time dependent parameters?
Somewhat surprised at the bitter , pissed off tone of Audiophile Review magazine, but of course objective testing stepped on a lot of people´s toes, so that might be expected.
In fact most of the answers to that article actually praise Hirsch and demean the writer.
As of "dull Music", they hit the nail in the head.
Add to that the de-evolution caused by downgrading from real amplifier and speaker listening to digital thingies powered by 3.7V batteries and listened through 1/4" equivalent (or smaller) phone transducers or $20 earbuds.
As of the greybeard, it´s a given for anybody remembering that from own experience 😀
This discussion comes round every few years.
Andy
If you know what the music should sound like then you have a better idea of which cable gives the closest reproduction of the original. There are people who have a good memory of sounds.
If the system is all analogue then it is a trade-off between interconnect and speaker cables. Digital active system allows the analogue portion (speaker cable) to be short, and the digital cable to be the long one.
Andy
He preaches, through repetition, to the already converted usually, still, it doesn't mean it's not a good idea to repeatedly challenge him.
How much difference do you think the cable makes to, oh, I don't know...the speaker, for example?
I'm guess that when you say "know what the music should sound like" you mean "know what the instruments should sound like", there are many variables to consider as regards what they "should" sound like. But, regardless, "knowing what they/it should sound like" would actually make it harder for you to tell the difference between cables for psychoacoustic reasons
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