Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
BiWire Jumpers on biwireable speakers.
#9
(29-Jul-2020, 08:56)David A Wrote: @Pim ,

You may be right and I have to wonder whether there could be an audible difference but I don't know enough to say whether or not there will be.

BUT…

I can remember the times when people have quoted really nice, compelling reasons for why something should not make a difference and the subsequent discovery that there was a difference because the reasons quoted did not refer to the correct data. For example the big fight in the '60's about whether 2 amplifiers with the same THD rating could sound different. Some people said they heard a difference. The measurements made and quoted showed no difference and people claimed that was a proof that there was no audible difference. The problem was that the measurements quoted were the simple THD as a % measurement and they truly were identical, or so close it didn't matter, but the problem was that while the total THD figure was the same, the spectrum of the harmonic distortion was very different and those differences were audible. Use the wrong data and proofs just fall flat on their face.

You're right about the lengths of the speaker cables but there is a very small difference. The positive leg of the speaker cable to the woofer is the length of the jumper cable longer than its negative leg and the negative leg of the cable to the tweeter is the length of the jumper cable longer than its positive leg. We're talking a matter of inches at signal transmission speed so I really can't see how the cable length would make a difference. On the other hand there is a slight difference in the connection and how current flows through the speaker as a whole. Does that change something in the behaviour of the speaker? I don't know.

What I do know is that saying that it can't make a difference because the difference in speaker cable length is insignificant and can't affect anything does not show that there is no other difference to be considered or that there is no difference attributable to some other reason than the difference in cable length.

We've got an absence of proof that this makes a difference and that is not a proof that it does not make a difference. If

I disagree David.

I'm not an electronics engineer but if I were I would easily show proof. This is physics, nothing else. 
  • Very important to understand; there's no change in phase of the input, so that leaves only the timing of the signal reaching the tweeter. Suggesting there might be something else that influences the signal would just be silly and I don't think you or anyone else here would. 
  • A tweeter works almost infinitely slower than the speed of the signal going through it. So the proof would be in calculating how much delay there is in the delivery of the signal between the two ways of connecting. This would be a very, very small number. That then will show that the tweeter would probable have to work at a frequency way into the MegaHertz or GigaHertz to show any change. No tweeter does this so theory debunked. We're talking tweeter here because they're the fastest part of the speaker. Woofers are even less likely to be influenced. 
A simple way of understanding current and Voltage is to see it as water flow. If this was water in pipes, there would be some change in pressure between the low and the high frequency connections. I don't think anyone would deny that. But, if this was water under very high pressure going through very large pipes over this very short distance, it would be a much harder to convince anyone that last 6 inches has any practical influence.
                                                    Lifetime Roon, Mac mini, int. SSD, ext. HDD, tv as monitor, key board and track pad on bean bag as remote,Devialet 200, Od'A #097, Blue jeans speaker cable,                                     
                                                                                                                                                                            Dynaudio C1 MkII.
                                                                                                                                                                              Jim Smith's GBS.
                                                                                                                                                                        Northern NSW Australia.
Reply


Messages In This Thread
RE: BiWire Jumpers on biwireable speakers. - by Pim - 29-Jul-2020, 11:17

Forum Jump:


Users browsing this thread: 2 Guest(s)