Using a solid piece of aluminum addressed several problem areas—especially around the 4kHz region, where the comparison focused. A slide analyzing the stresses manifest on the old vs. Slides aside, Stuart resorted to a simple example to emphasize the point. He took the previous tweeter body and struck it. It rang like a tuning fork. Striking the new tweeter body yielded a totally dead thud. Stuart Nevill shows the differences between the previous generation's tweeter assembly left and the new billeted aluminum assembly right.
There is no longer any reason whatsoever to remove the cap to get optimal tweeter performance and create a scenario where someone can accidentally poke the tweeter dome and damage it. The midrange matrix and the entire cabinetry have also gone through a complete overhaul. Showing the new matrix at the same frequencies, you could readily see that it exhibited far less distortion.
It sung. When he struck the new midrange chassis, it was completely inert. Instead of a flat-fronted speaker with a curving back, they developed the new Series with the front and sides forming one continuous curve and held together with a spine of solid aluminum. A curved front means less baffling around the drive units.
So sound dispersion is improved, and cabinet reflection is reduced. Stuart shows the measurable improvements made in the new Series Diamond cabinet bracing right vs. In other words, it colors the sound.
Bracing is therefore essential to allow the listener to hear the drivers, not the cabinet, so that the original character of the instruments can come through cleanly. Once again, Stuart showed a side-by-side slide of the difference that the new Matrix assembly makes in the overall cabinet. The plinth base of the and Diamond housed the crossover and critical components.
Now the crossover has been moved from the plinth to the main body of the speaker. The new plinth is constructed from a solid piece of aluminum weighing in at 77lbs! The new aluminum-reinforced and plywood matrix bracing and new bass drivers in the Series Diamond. If you have ever had to position or move incredibly heavy speakers, you know what a chore this can be.
Now, the top of the line D3 and D3 plinths come with permanent castors. You can roll the speakers and re-position them with incredible ease. Have a hardwood floor? The result is that the dome is completely rigid, exhibiting perfect piston-like behaviour not only within the audio band, but also for at least an octave above it, and delivers superior sound quality as a direct result. There is one other problem with using a hard dome in a tweeter, and that is the problem of getting rid of pressure waves from the back of the dome.
This cone, which is mm in diameter, is unlike almost all other midrange cones ever made in that it does not have a roll surround around its periphery to assist with cone movement.
The advantages are claimed to be improved transient response, improved damping and reduced distortion this last because the foam ring does not reflect energy back across the cone surface in the same manner as a roll sound. The tear-drop shape means there are no reflections added to the direct sound, which enables improved imaging. Eliminating reflections and diffractions is one of the reasons the main cabinet of the D3 is curved.
When a bass driver is mounted on a standard flat baffle its performance is severely affected by that baffle. From an engineering viewpoint, this is expensive and difficult. From a visual viewpoint the appearance will be in the eyes of the beholder.
I really like the look of the protruding drivers, but several others whose opinion I asked did not share my opinion. Since the word aerofoil is already in use to describe the cross-sectional shape of an object that when moved through the air creates an aerodynamic force i. A Gloss Black finish is also available.
Links may be used, provided that full and clear credit is given to Hifi Pig and Big Pig Media with appropriate and specific direction link to the original content. The new Satin Walnut finish. Rear view of the D4. Top view of the D4. Neat Majistra Loudspeaker. The video cannot be shown. Your web browser does not support iFrames.
Discussion threads can be closed at any time at our discretion. April 23, a. Bowers and Wilkins D3 Part : D3.
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