We found switching off the lights was much better than the sleeping mask. The mask seemed to modify the actual perception of the sound.
Never seen a M1400 let alone hear one. Specs & buzzwords look good except THD is rather worse than what we used.
Did it use a fan? Was it quiet enough to be in the same room?
THD below clipping is measured @ .005%. The amp includes selectable 'Anti Clip' circuitry.
Because its design has 2 speed cooling, I modified my cool speed rate without affecting hot rate for domestic listening.
PS.
Because of its high speed design, it also exhibits very low TIM. ( they call it "Fast Recovery" )
Because its design has 2 speed cooling, I modified my cool speed rate without affecting hot rate for domestic listening.
PS.
Because of its high speed design, it also exhibits very low TIM. ( they call it "Fast Recovery" )
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These are TERRIBLE speakers. If you still have the drive units, you must IMMEDIATELY pack them carefully in a box and SEND THEM TO ME in Oz for safe disposal. They must not remain in Italy lest they degrade the country's fine musical tradition. 😊
Yes! think about it, measurements would look exactly the same lights on and lights off, but perception of sound changes, not due to audio but what enters your eyes! All stimuli go to the same processor that provides the perception. So how does measurements and perception correlate?
Many good comments regarding this stuff, best speakers are literally those which you designed and built exactly to your needs and preferences and put your own blood, swet and tears into them, regardless how they measure 😀 up until one learns about various biases, other senses and memories and all kinds of stuff affecting the perception, and start to somehow manage the auditory system, acknowledge it might have big part of perception at any given moment and the thing one should be evaluating first, before evaluating the gear. Get to know the state of auditory system somehow, either by indirectly manipulating it making simple AB tests with auditory system, make little experiments on your own like how sensitive your hearing is at any moment of day and so on just to know it a little better.
Even though it's likely not possible to be fully aware of these subconscious mechanisms at play, I bet that any awareness of your auditory system state is a lot better than none, a start for understanding how measurements and perception relate. Everything you perceive went through a process inside your head you can't directly control or measure with a mic.
Quick example, having learned about Griesinger LLD and that perception of sound closer than LLD is way way better, the HiFi sound I know and love, and is due to auditory system state, and not due to gear. I went to a Hifi expo with best stuff available in Finland and tons of people attending, and literally all rooms had all listening chairs set up beyond LLD, except some of the smaller ones that had no option than to cram it. Since there was no single chair where the good sound is, it indicates about none of those people knew about this stuff, that their brain isn't taken into account, but just think about the gear and sell and buy the gear. In many rooms I just went and moved a chair in the front 😀 I bet most people looked that what a lunatic, nobody followed. So, what ever, was fun stuff for me 🙂 If the manufacturers knew about it there ought to be at least one chair at the best sound, right? Well, perhaps some had front row close enough, it was crowded and could not verify LLD on all rooms, so take this just as an example.
I would say LLD is the key to this, it is quite distinct and relatively easy thing to detect and is our own auditory system switching state. Now one can start correlate measurements to perception.
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There are ways to predict your preference. Extensive studies done at Harman (but open) by Dr Sean Olive and Floyd Toole show what most like, the so called Harman curve. But it's most, not all. It's a good starting point to find out what you like, and it's a good commercial technical target for speaker brands (the biggest part of the market will like it). But not all like it, and a lot make small or larger deviations of it for personal taste reasons. The harman curve is not flat, it's consistantly sloping down from bass to treble in about 3dB difference between 20Hz and 20kHz with a very small boost below 100Jz. And people also want an even dispertion, even if it slightly beaming to the top., it should be even and gradually.
Those are not my prefences, that is what most liked in extensive double blind testing of many speakers that were also measured with a Kippel (so they could compare and rank). Harman brands (JBL, Revel, ...) and Kef use those as utopia for their speakers (and sometimes get very close). I personally like a more sloped treble and more subbass. than the Harman curve so that is how i build my speakers today...
Those are not my prefences, that is what most liked in extensive double blind testing of many speakers that were also measured with a Kippel (so they could compare and rank). Harman brands (JBL, Revel, ...) and Kef use those as utopia for their speakers (and sometimes get very close). I personally like a more sloped treble and more subbass. than the Harman curve so that is how i build my speakers today...
My view is that it happens because there is a market, therefore there are interests.
Where there are interests of money, all reasonable intentions cease: and "wars" arise, of any type one can imagine.
In my humble opinion there is a kind of silent pact of non-belligerence between producers who know that if a kind of measurement were to come out that they had to deal with and with which only a few could emerge as winners, then it would not be convenient for anyone.
Furthermore, Audio is a sector in which almost no one invests even a little money and that someone even without investing manages to make a lot of money.
Audio, in my humble opinion, is a sector in which many cry scandal and snake oil for many things, not realizing that they support the same snake oil regarding measures, without any real correlation with listening yet.
Only that it seems more logical.
Hi i respect completely your opinion but sometimes i read words that makes me dream or pipe dreaming Like these
https://www.stereophile.com/content/rockport-technologies-antares-loudspeaker-page-3
for me a speaker must be as accurate as possible I want to hear everything The reference for details could be a great pair of Stax headphones
Those can highlight any subtle detail I am afraid that no speaker can match that resolution But the Stax cannot soundstage
But for detail they are very valuable When a speaker approaches that level of detail it means that is very transparent indeed
Thank you very much for your precious advice I still think that the right measurement can tell a lot indeed
And also when done directly on the driver I have seen woofer with the magnet of a cheap tweeter and woofer like this one below
there must be some measurable difference between the two
Personally i like a lot multitone tests and CSD test
yes they are all working at least this is what the seller has told me To be more precise there is a speaker that i have never listened but i love
Way above my budget
https://www.hifisentralen.no/forume...rs-full-range-speaker-with-active-sub.235490/
about 8keuro used is a lot for me
I like also Stenheim A similar concept also quite expensive
this is my reference speaker Aluminum cabinets bass separated by the midhigh section I know nothing about drivers and xover
This has stiff bass box and stiff and heavy head
I more optimistic for the head The bass cabinet is a nightmare
so every time i see something in Al i try to buy Above all they were extremely cheap
very interesting advice and thank you for this
but there is an important point When the sound is really good i can hear it I am not fooled that is good You know that is right
And to be fair i have experienced this sensations many times There are many good solutions
But i see speaker building like cooking the first step is the selection of good raw materials
It is not clear to me at all how speakers designers select drivers They measure ? they listen ? they hit their cones ? it is a mystery
I would love to have a tool for this selection
So remember, if you buy more KEF KHT 2005 Eggs, IMMEDIATELY pack the drive units carefully in a box and SEND THEM TO ME in Oz for safe disposal. 😊 The Al boxes are OK for you to keep.
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I had never been aware of those 'KEF Eggs', but I imagine they would have superior definition & detail than the old Auratone 5C cubes 😉
https://www.whathifi.com/features/was-then-kef-kht-2005-review
https://www.whathifi.com/features/was-then-kef-kht-2005-review
I'm sure of this! 🙂
In my view, the fact is that at present to find out that measure you have to invest a lot of money, but investors if/when they invest do it because they expect a return in money from their investment.
The market is already what it is and no big surprises are expected, how do you think someone "discovers" a measurement so sophisticated as to be predictive of the sound quality of a driver/speaker?
I think it is very difficult.
That's why I called it "snake oil of measurements", because from the little that is known there are those who set themselves up as masters.
There should be a lot of humility and openness to listening and convergence instead of competing, but I don't see much of it around here.
In my opinion they instead know very little and that little they sell for its weight in gold, metaphorically and not.
Hah, yeah I guess my posts are too high flying?😀 Should have added that, on top of the gear, look into your brain. If you have system that has good SPL capability and wide bandwidth and smooth response including smooth DI, it's gonna sound good, like it measures. On top of that you can still affect sound by how well you are able to position the the system, whether lights are on or off, and so on. You can perceive a good system better or worse, depending on what your auditory system provides into perception. Same goes for poor system, but I assume if it's too poor we just cannot get over it and it doesn't matter if it's better or worse poor 🙂
[n my view, the fact is that at present to find out that measure you have to invest a lot of money, but investors if/when they invest do it because they expect a return in money from their investment.]
What a revelation! if there was no return then an investment is a gift probably with a hidden motive.
What a revelation! if there was no return then an investment is a gift probably with a hidden motive.