Eminence PSD High Frequency 1″ Driver, 80 Watts at 8 Ohms. Developed for totally loaded Eminence cabinets, or as upgrades to an existing device. Eminence PSD 1 bolt on high frequency driver handles a powerful 80 watts AES at kHz. Eminence:: 1 Inch Bolt On:: Eminence PSD (Bolt-on) 1 inch Throat 80W Compression Driver 8 Ohm:: Eminence PSD (Bolt-on) 1 inch Throat 80W.
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Eminence PSDSA | loudspeaker – SONOLOGY Toulouse
Jan 11, 8 18 Florida. High Frequency Compression Driver Evaluation. Nowadays I use lossless AAC when encoding my own stuff.
The larger diaphragm drivers have less odd order harmonic distortion at high volume.
Jan 29, 0 0. That is, only lower frequencies are compressed and transmitted, and higher frequencies are synthesized by copying lower frequency regions up higher. Jeff Babcock Senior Eninence 16, Silas Pradetto Graduate Student May 17, The larger diaphragms provide more output with less distortion. It was not the most efficient driver, but was the flattest overall, and appears to handle the extra power it requires over the others with no problems.
Finally, thanks to Bonnie T, love of my life who put up with my obsessions over the last month in pzd2002, and the last four years in general. HF air losses are in addition to the inverse distance 6 dB per doubling of distance. I was surprised to find how much distortion can be tolerated in the presence of the low frequency output.
And I am swamped with work at the moment, emibence will take a while to get to all the things I want to say here.
Search Everywhere Threads This forum Emimence thread. It is important to note that the VC in BMS drivers is in the middle of the diaphragm, because it is a ring radiator design, not at the very outside as with a traditional compression driver. I don’t know about secrets but I thought DG had a strategy to cancel or somehow mitigate “throat” distortion in horns, this is only one type of loudspeaker distortion, thus the desire for linear drivers so the throat distortion will be predictable.
So in addition to masking, our ears tend not to notice increasing amounts of distortion at higher frequencies. Hope I’m not giving away any trade secrets here. The structure they are mounted in is different, because the motors are different sizes, neo vs ceramic.
Want to make that abundantly clear at the top for emihence those that don’t know, or missed that part of your first post. You must log in or register to reply here. While this may sound extreme, these techniques are backed by a lot of double blind listening tests with expert listeners.
Regarding the VC size, and its relation to the surface area of the diaphragm. The actual SPL and power levels for the recordings are: Art Welter Senior May 18, This compression results in high throat SPL, at the upper power levels the drivers were tested at the non- linearity of air is responsible for a significant though undetermined percentage of the of distortion measured, that non- linear distortion is unavoidable in any compression driver design.
Members Current visitors New profile posts Search profile posts. Michael, Probably to keep spec sheets concise, although I don’t actually know. Art Welter Senior May 9, The BMS is by far the highest output for size and weight of the drivers tested. We don’t publish a great deal of the data we take for each product, all of this is of course available for the emience.
Since as ped2002 professional in the audio feild you probably care far more about the performance of a driver when pushed hard, several examples will be posted. This makes comparison of HF compression drivers between different manufacturers difficult in other than very fundamental respects. The dual sine wave tests made hearing the differences between the drivers easiest, simply stated, the EV DH1A has more output available with less audible distortion than the other drivers.
If you buy from the iTunes store, you’re stuck with k AAC which is adequate for a lot of stuff but not always. High Frequency Compression Driver Evaluation I don’t know about secrets but I thought DG had a strategy to cancel or somehow mitigate “throat” distortion in horns, this is only one type of loudspeaker distortion, thus the desire for linear drivers so the throat distortion will be predictable.
Thiele -Small parameters for cone transducers make comparison of cone speakers relatively easy, allow allowing reasonably reliable predictions of response in a particular cabinet alignment.
Jan 11, 2, 0 0 Land of Steady Habits www. Care was taken to insure a smooth transition ps2002 driver, adapter and horns, requiring a fair amount of drilling, filing and cursing those that made poorly aligned adapters and drivers that have unique bolt patterns.
Just that I want to thank her for her patience with you and this project. What are benefits of adding HF driver 7khz up? Most of my sound work presently is in the dry high desert of New Mexico, HF air losses in hot summer temperatures require far more acoustic power to overcome those losses compared to similar heat at high humidity.
It was very eminencs to me to see the two BMS drivers plots side by side. I use BMS drivers. Advances in materials and design has led to higher power handling which may correspond to additional available output and lower distortion.
Eminence Speaker Drivers
Considering the disparity between size, weight, diaphragm material, and design, the constraints and compromises inherent in each approach, once equalized for flat on-axis response there was surprisingly little difference in the end results of listening tests. Forums New posts Search forums. John Roberts Graduate Student May 17, John Chiara Senior May 18,