Physicist & amp designer on whether speaker cables make a difference in hifi audio systems

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Linear Tube Audio

Күн бұрын

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@thomasdix8453 9 ай бұрын

Excellent explanation ; appreciate David's wisdom

@brendanmccarthy4218 9 ай бұрын

Really interesting. At last, a musically scientific approach to guide us through the complexities of cable choice. Thank you

@pedrodaniellopesferreira2916 8 ай бұрын

The answer is: NO! As long as your speaker cables are connected, and your speaker play music, it's all good.

@Paul7mac 8 ай бұрын

Well maybe you can't hear a difference but it's definitely there muddy sound and dull HF. You don't need to spend much to get good stuff but vinyl coated Vs polyethylene is massive in the HF.

@mfdoom808 9 ай бұрын

Reflections are real and matter very much at high frequencies, especially when you're trying to measure/transmit in the MHz range, but I fail to see how it matters at the relatively low frequency range of the audio band.

@LinearTubeAudio 9 ай бұрын

David addresses this exact point at 4:25 in the video: kzbin.info/www/bejne/oJ3KoZx8pdCIo8kfeature=shared&t=264

@FOH3663 8 ай бұрын

Makes sense, much appreciated.

@audiononsense1611 8 ай бұрын

Well said and true...

@thinkIndependent2024 8 ай бұрын

Very Philosophical point & Theory that being said that is compensated for in design of the Amplifier

@LinearTubeAudio 8 ай бұрын

Maybe, maybe not. The effects would all depend on the amplifier, as David points out toward the end of the video.

@thinkIndependent2024 8 ай бұрын

@@LinearTubeAudio There is a certain coax cable using AES/EBU 75 ohm impedance so it's possible another cable MFG sells very expensive fixed cable with a 180k ohm in parallel terminated. ( People swear by it also) Signal frequency sweep on the amplifier, cable, speakers typically answer that question. Floating harmonics maybe,In my quest for quieter cheaper power supplies began to add more circuits to prevent that type of noise or -300db that Rob with Chord Electronics states has an effect. He was non-very specific, so one can't be sure.

@IliyaOsnovikov 9 ай бұрын

I believe David was talking about GOERTZ cables.

@FOH3663 8 ай бұрын

Getz, ... whatever you want, Leo Getz

@TheD4VR0S 9 ай бұрын

The sound coming out of speakers with different cables can be captured and compared then you would have hard data on whether it affects the sound or not, doesn't seem like he's done that

@AT-wl9yq 8 ай бұрын

You're right, of course, but don't hold your breath. This whole argument was never about cables. Its about wanting to be right. The skeptics will never do a real test, and they can't even reference a real test. If you make recordings of cables both in and out of phase, you can do null testing. When you play back the 2 recordings of the same cable you hear silence. When you mix the exact same recording done with different cables, you can hear music. There have been youtube videos done on the null testing process that proved audible differences in cables. I couldn't get any of the cable deniers to watch it. One of them was testing different usb cables of all things. I know they watched them, but they just wouldn't admit it. There have been other things, as well, but they always chicken out. Its not about cables. It never was.

@tonyt.5771 9 ай бұрын

Take note, " could " comes up a few times.

@LinearTubeAudio 9 ай бұрын

Indeed. He goes further than that, if you watch to the end. He specifically says, "I'm not saying this absolutely happens, but it's what could happen, technically."

@karney44m 8 ай бұрын

Totally untrue! An amplifier marked as having 8 Ohm output is not actually 8 Ohms, its a fraction of an ohm. Speakers marked as 8Ohms are only that impedance at one specific frequency, usually just above resonance and beyond that the impedance rises dramatically with frequency. This leads to why passive crossovers are such flawed designs yet still used in HiFi....the professional audio world left them behind years ago. A speaker cable is not a transmission line where what you describe would make a big difference, this is reserved for the world of RF. For the transmission line argument to hold water in a speaker system, the load must remain constant, which it does not (just pull any data sheet for any raw driver), the frequency must remain constant, which it does not, and finally the amplifier or speaker and amplifier would have to be matched to the cable length.......All just pie in the sky stuff. I suspect the cables you describe that blew up amplifiers in the 70's were some form of shielded cable or other high capacitance design, MOSFET amplifiers do not tolerate capacitive loading and back in the 70's, Zobel networks were not fully understood, the Zobel network offsets the capacitance of long speaker runs and attempts to make the amplifier see a resistive load. Any cable of sufficient cross sectional area for the power, speaker impedance, and cable run length will suffice. This is a hard pill to swallow for those that have bough into the cable argument with hard earned cash. If you can double blindfold test hear the difference between two cables, one of them is faulty!

@DaveJ6515 4 ай бұрын

This is not true. But if you want to believe it, be my guest. Now I'll go back to listen to my hi-end setup, and you can go back to your numbers and bilnd tests. Have a nice life.