- Thread Starter
- #421
PMC?
That is easy and obviously the on-axis response of a pair of Wilson Audio Alexia V, left, black; right, red; w. grille, blue
These nevertheless "epitomise the best of Danish audio design."Another Audiovector £53k
Seems an awful lot for what you get!Audiovector R 8 Arreté Loudspeaker Lab Report
Lab Report While the R 8 is a fairly sensitive tower – Audiovector rates it as 92.5dB but it appears closer to 87dB/1kHz and 89dB (500Hz-8kHz) – it is also a very tough load (the 8ohm nominal rating is wide of the mark). The good sensitivity partially mitigates the low impedance because less...www.hifinews.com
Keith
That's very creative. I'm not sure how to do that, even if I wanted it.Alta Audio Adam ($17000):
Alta Audio Adam loudspeaker Measurements
Sidebar 3: Measurements I used DRA Labs' MLSSA system, a calibrated DPA 4006 microphone to measure the Alta Audio Adam's frequency response in the farfield, and an Earthworks QTC-40 mike for the nearfield response of the woofer, both microphones used with an Earthworks preamplifier. For...www.stereophile.com
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BTW, that write-up is one of the more alarming things I've read lately. It makes the engineer who designed this speaker sound like an idiot.Alta Audio Adam ($17000):
Alta Audio Adam loudspeaker Measurements
Sidebar 3: Measurements I used DRA Labs' MLSSA system, a calibrated DPA 4006 microphone to measure the Alta Audio Adam's frequency response in the farfield, and an Earthworks QTC-40 mike for the nearfield response of the woofer, both microphones used with an Earthworks preamplifier. For...www.stereophile.com
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Wow, were these developed using only an Etch A Sketch?
Beware of the dunning Kruger effect , don’t fiddle to much with such nonsense as science or engineering otherwise your confidence in your design may falter.I think I might have a go at this loudspeaker ’designing’ I have a free afternoon tomorrow.
Keith
Audiovector my local hifi dealer way back had them they sounded noticeably worse the more expensive they get .Another Audiovector £53k
Seems an awful lot for what you get!Audiovector R 8 Arreté Loudspeaker Lab Report
Lab Report While the R 8 is a fairly sensitive tower – Audiovector rates it as 92.5dB but it appears closer to 87dB/1kHz and 89dB (500Hz-8kHz) – it is also a very tough load (the 8ohm nominal rating is wide of the mark). The good sensitivity partially mitigates the low impedance because less...www.hifinews.com
Keith
Snap!Audiovector my local hifi dealer way back had them they sounded noticeably worse the more expensive they get .
I always preferred the cheap dome tweeter versions . Less showroom sound , the detail is nothing but to much treble.
Interestingly its horizontal directivity is well behaved, probably uses shallow crossover filters with large overlapping regions which would also explain the vertical problems:Alta Audio Adam ($17000):
Alta Audio Adam loudspeaker Measurements
Sidebar 3: Measurements I used DRA Labs' MLSSA system, a calibrated DPA 4006 microphone to measure the Alta Audio Adam's frequency response in the farfield, and an Earthworks QTC-40 mike for the nearfield response of the woofer, both microphones used with an Earthworks preamplifier. For...www.stereophile.com
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Aren't John's off-axis curves normalized to the listening window response, so tha this would actually show that the response doesn't get much better off axis?Interestingly its horizontal directivity is well behaved, probably uses shallow crossover filters with large overlapping regions which would also explain the vertical problems:
Of course the reviewer loved them: "Right now, these are the speakers I'd consider most if 20 grand were burning a hole in my pocket."Wow, were these developed using only an Etch A Sketch?