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

[planet10]

Originally Posted by cbdb

And I thought it was electricity thru a conductor.

Seems you missed the quote that talks about "audio perceptions"

Electricity thru that conductor often causes death.

dave

[cbdb]

Sorry, Im confused. This thread can be hard to follow sometimes.

[planet10]

Originally Posted by cbdb

Sorry, Im confused. This thread can be hard to follow sometimes.

SY doesn't seem to be far behind.

dave

[rdf]

Originally Posted by SY

Well, we ARE talking about a piece of wire. A single valued transfer function.

Into a complex load. Below, lumped parameter estimate of ten feet of 16 gauge, minus capacitance, into the PartsExpress Dr K MTM, again chosen for the well-documented Dayton drivers used. No wonder the MIT is potentially audible. Yes, only prosaic scientific reasoning is required to explain it, harder is it why reports were dismissed instead of metered.

Edit: forgot, my brother stumbled across this thread and reminded me of MLSSA tests he'ld done at either ends of speaker cables. The variance was over 0.8 dB, prompting to switch to heavy gauge afterward.

[danielwritesbac]

Originally Posted by rdf

Into a complex load. Below, lumped parameter estimate of ten feet of 16 gauge, minus capacitance, into the PartsExpress Dr K MTM, again chosen for the well-documented Dayton drivers used. No wonder the MIT is potentially audible. Yes, only prosaic scientific reasoning is required to explain it, harder is it why reports were dismissed instead of metered.

Oh, wow. That's interesting! Can you explain the "Four Twinned" cable?

[Iain McNeill]

Thank you for that data rdf. We need more of this and if I had a spare hour or two I'd do some tests too. Well, maybe not

It's been said earlier but bears repeating:
If your speakers are low impedance, difficult to drive, large phase range and your amplifier is high output impedance, low feedback, transformer/capacitor coupled then there's a high probability that changing cables will change the sound. As rdf's plot shows.

YMMV

[rdf]

Originally Posted by danielwritesbac

Can you explain the "Four Twinned" cable?

Nope, don't know anything about it. From the pics MIT soldered an inductor inline, which can't help but have some impact at the top end. When the model used for the above trace includes National's 0.7uH output inductor and Zout estimate for a damping factor of 100, the results become:

[rdf]

Iain, I would say it's low impedance speakers with high damping factor amplifiers that will see the most effect. The speaker wire impedance is in series with amplifier's Zout. If the latter is already twenty times greater than typical 16 gauge, which is the case of some tube SE gear, cable makes little relative difference.

[andy_c]

Please post the simulation files used to generate these plots.

That 0.8 dB number is in Paul Bunyan territory BTW.

[rdf]

Here you go: