Bi-wiring
Under bi-wiring (dt .: double wiring ) means the operation of a loudspeaker with two separate loudspeaker lines for the one hand, the bass and on the other hand the mid-high branch of the speaker to a full or amplifier . For this purpose, the loudspeaker must be able to control the high / mid-range chassis and the bass chassis separately, i.e. have separate input sockets for the bass and mid-high range of the loudspeaker crossover.
The advantage of this system is that the two loudspeaker systems for high and low frequencies are better "decoupled" from each other through bi-wiring and cannot influence each other. This is intended to improve or change the sound of the amplifier-loudspeaker combination. In terms of circuitry, bi-wiring is practically identical to conventional cabling. As a result, metrological proof of effectiveness cannot be given. Since there are no scientific studies on acoustic effects, the alleged acoustic improvements must be regarded as unsubstantiated individual opinions.
In addition to bi-wiring, tri-wiring is also marketed, but three pairs of cables are laid here, analogous to bi-wiring.
audibility
The effectiveness of bi-wiring is also controversial in the hi-fi scene. While individual special interest magazines propagate bi-wiring without reservation, it is listed elsewhere as one of the "ten biggest lies in audio". At the University of St. Andrews in Scotland, an article was published that uses a simulation model to find out whether there can be a difference in theory. While the model used actually makes this seem conceivable, the bottom line is:
"[...] it is debatable if any variations in practice will normally be large enough to be audible or to be regarded as being of any real consequence. Moving your head a few centimeters when listening may have a larger effect in many rooms. "
German translation:
“[...] one can argue about whether any changes in practice are big enough to be audible or have any real consequences at all. Moving your head a few centimeters while listening could have a greater effect in many rooms. "
Loudspeaker developer Günther Nubert advises against bi-wiring; only use half the cross-section on each strand that is available with the same cabling in mono wiring:
"Our listening tests have confirmed this: If any differences were detected at all, bi-wiring with long, not too thick cables had more sonic disadvantages compared to connecting the same lines in parallel."
Scientifically documented blind tests that prove the perceptibility of tonal differences through bi-wiring with a sufficient cable cross-section are not known.
See also
Individual evidence
- ↑ a b Bi-Wiring advice ( memento of March 18, 2007 in the Internet Archive ) stereoplay.de, March 17, 2003. Accessed October 30, 2014.
- ↑ "Measurements on Biwiring" TMR Audio, accessed on August 8, 2017
- ^ "The ten biggest lies in Audio" , The Audio Critic, Issue No. 26, case 2000, accessed November 10, 2014
- ↑ "Bi-Wiring from amplifier to loudspeaker" , Jim Lesurf, University of St. Andrews, Scotland, 2002, accessed November 10, 2014
- ^ Günther Nubert: Technology fed up . Schwäbisch Gmünd August 2016, p. 20 ( nubert.de [PDF]).