Noise and funny stuff beyond 20khz only comes out of poorly designed devices, and there is no need to use such things.
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Worst measuring loudspeaker?
- Thread starter Purité Audio
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Everything is a compromise in this world, typical ring radiator tweeter are made from soft and damped material which has its breakup frequency quite lower and closer to the audio band just smeared wider, also such don't keep usually the directivity constant in the last octave but beam more.
Adjusted to match @amirm frequency response chart and compared to the Neumann KH120 II:Kef R3 meta, courtesy of Hi-Fi News
View attachment 318455
Keith
KEF R3 Meta Loudspeaker
KEF's innovative 'MAT' absorber has pushed the performance of Uni-Q to new heights. Now it's in the seven-strong R series It still surprises me that KEF's R series, which features seven models in total, includes only one standmount/bookshelf option. Surprising because compact speakers are...www.hifinews.com
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Why not comparing them easily directly at spinorama.org?
Easily compare loudspeakers measurements
www.spinorama.org
Lol, that would have been easier.Why not comparing them easily directly at spinorama.org?
View attachment 318533
Easily compare loudspeakers measurements
OP
- Thread Starter
- #606
B&W 801 ‘signature’ £45k,
www.hifinews.com
Keith
B&W 801 D4 Signature Loudspeaker Lab Report
Lab Report With the same raw specification as the 801 D4, the Signature version also meets its rated 90dB sensitivity at 89.7dB (1kHz and 500Hz-8kHz). The characteristic 'three hump' forward response trend retains its –2dB 'step down' between 200Hz-1kHz and 3dB dip at 600Hz [see Graph 1, below]...
www.hifinews.com
Keith
What you do get is variety. The stuff we like only plays at one boring level across frequency.B&W 801 ‘signature’ £45k,
View attachment 321076
B&W 801 D4 Signature Loudspeaker Lab Report
Lab Report With the same raw specification as the 801 D4, the Signature version also meets its rated 90dB sensitivity at 89.7dB (1kHz and 500Hz-8kHz). The characteristic 'three hump' forward response trend retains its –2dB 'step down' between 200Hz-1kHz and 3dB dip at 600Hz [see Graph 1, below]...
Keith
OP
- Thread Starter
- #609
B&W 801 from 1987, courtesy of Stereophile,
Those were the days!
Keith
Those were the days!
Keith
Maybe the designer is slipping into senescence with his customers...
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Exactly, even the directivity was textbook especially for that time:
Source: https://www.stereophile.com/content/bw-matrix-801-series-2-loudspeaker-measurements
OP
- Thread Starter
- #612
I would really like to know B&Ws reasoning, one can only imagine they are sales driven.
Keith
Keith
My cynical side says they are designed and built in some sweatshop in Asia, then shipped to B&W.
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Rather that the one of the main designers of their good old loudspeakers (Lawernce Dickie) left B&W in the 90s (after he luckily designed also the Nautilus which is after 30 years still the B&W flagship) and made his own company with loudspeakers which measure similarly well. https://vividaudio.com/
PKAudio
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Be careful to judge this measurement, not above 1kHz, but below. It is likely measured with mic at the height of the tweeter, with 1m distance. This kind of measurement will not correctly measure the situation between 100-500Hz, as the woofer is measured from high angle, and its relative distance is further. This is generally the measurement issue with large 3way loudspeakers, and especially with dual woofers.B&W 801 ‘signature’ £45k,
View attachment 321076
B&W 801 D4 Signature Loudspeaker Lab Report
Lab Report With the same raw specification as the 801 D4, the Signature version also meets its rated 90dB sensitivity at 89.7dB (1kHz and 500Hz-8kHz). The characteristic 'three hump' forward response trend retains its –2dB 'step down' between 200Hz-1kHz and 3dB dip at 600Hz [see Graph 1, below]...
Keith
801 from 1987 might have been measured from different distance, and it has only one woofer.
You would think they could find a competent designer. Maybe the new one works cheap.
That may be, but it's awful above 1kHz, too.
OP
- Thread Starter
- #618
I believe they are built in quite cool Steyning near the Sussex seaside.
Keith
Keith
My memories of England include finding good beer everywhere. Perhaps that's a factor
OP
- Thread Starter
- #620
Are the Nautilus a flagship, I feel they are more of a conversation piece , not unlike KEF’s ‘Muon’.
Keith
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