mtnjag wrote: ↑Wed May 12, 2021 11:15 pm
Don’t understand how out of phase speakers offers better fidelity. How does that work?
You typically make sure speakers are phased to ensure the best fidelity they are able to offer.
You are correct in that speakers normally should be in-phase. But that assumes that the speakers are in separate cabinets (and the same listening plane). In the E-type, the two speakers are facing in opposite directions and share the same back space. Not a normal situation.
If the speakers are in-phase, they will be pushing in and out at the same time. Hence the term 'in-phase'. However because the speakers are back-to-back in the same cabinet (technically the console space is not a cabinet, but it does act like one), they are trying to push the same volume of air in opposite directions. If the speakers are out-of-phase, one will be pushing while the other is pulling. The result is more oomph with the same amount of power. Remember that this is really about the woofers since they have the harder job of moving volumes of air.
Obviously, this is a special circumstance. No rational sound designer would call this a good arrangement for decent sound reproduction. Jaguar simply didn't have any other space to put loudspeakers. (Yes, I know: "Grace, Space, Pace". The marketing department must have forgotten that Jaguar also made sports cars.) In fact, they gave up having two speakers with the 4.2—cars that were radio-equipped only had one speaker.