ACCUTON MIDRANGE DRIVER
P-S-V-A, best to worst. Three-Box active system It makes a pinging sound. Compared to a Hz crossover this would reduce the volume displacement required from the midrange and thereby reduce its non-linear distortion. It shows that the order of the drivers is different for the two forms of distortion. If I then give equal weight to linear and non-linear distortion I come up with an overall order for the drivers. A low distortion driver for the Hz to 3 kHz range is hard to find.
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The Vifa P21WO was the worst. With the current popularity of 7″ 18 cm drivers, and some new models available, it became time to re-asses the options.
Below is the example of a tweeter with fast decay at Hz. The amplitude was 5.
Accuton Midrange | Loudspeaker freaks
There is a considerable amount of data to consider. I observe how rapidly the driver output decays and stored energy is released. Mdrange large resonance peak at 5 kHz requires a notch circuit.
One way is to take acfuton average of the two sets of non-linear distortion rankings and of the three sets of linear distortion. Stereo Recording and Rendering.
If I then give equal weight to linear and non-linear distortion I come up with an overall order for the drivers. Also, reducing the drive level at Hz by 6 dB improves distortion, but not much more than 6 dB.
I would investigate it, if I had a need for a 4-way speaker design. A dipole woofer with the Peerless could be crossed over as high as Hz using a 4th order acoustic transition.
I would not use these drivers in a 3-way open baffle mirange due to their limited volume displacement for lower frequencies. It was by no means exhaustive, nor may I have done full justice to each, but I am quite confident that I caught the essential performance of the units. Compared to a Hz crossover this would reduce the volume displacement required from the midrange and thereby reduce its non-linear distortion. Both units performed well on stored energy, better than the T25CF, which was slightly ahead of the An acoustic event has dimensions of Time, Tone, Loudness and Space Have they been recorded and rendered sensibly?
Also, measurements are taken outdoors to eliminate room any reflection problems. While the Vifa P21WO has low non-linear distortion it suffers from excessive energy storage.
Ceramic :: Thiel & Partner – accuton
The different, stiffer suspension might be the cause of this. The Magic in 2-Channel Sound. Cone Hz Hz.
I have no explanation for these two observations, but they should be investigatedbecause they appear to be systematic. The test microphone is at the center of the cone diameter and touches the plane which would be formed, if a flat sheet of paper were placed over the front of the driver.
I did not include drivers with smaller diameter, because of the large volume displacement needed for a dipole.
P-S-V-A, best to worst. There are many other drivers on the market and if you know of one that might stand out positively in the tests below, then please let me know, or better yet – send me a sample. One of them could be allocated to this task and be patched into the midrange channel. This will be a relative comparison of drivers.
This driver is my first choice for any new open baffle speaker design.
INNOVATION IN SOUND
The midarnge also confirmed the respectable performance of the Vifa tweeter compared to much more expensive models. For any new design I would seriously consider the Seas T25CF tweeter, though I am not sure how directly the small improvements in measurement data translate into audible benefits.
Since these tests were done Seas introduced the W22EX I have given each driver a place for its distortion performance though differences are often small and judgment is based on multiple observations. They determine, therefore, the remaining sonic signature of a given driver after the overall frequency response aberrations – which are also a form of linear distortion – have been equalized.