Originally Posted by amatuerholic
Sound isn't all about numbers, that's why some people enjoy vinyl miss than digital copies.
I believe that the point being made that the inherent audible imperfections in vinyl are tolerated by many even though they would be completely intolerable as specifications for amplifiers. However, vinyl isn't all that bad compared to loudspeakers, which gets us back to the real world and on topic.
If he's happy with his speakers, just help him find what he's trying to find.
The above is a very narrow and biased view of the OP. The real question behind every question on AVS is not whether the person posting is happy with any particular component in their system they are focussed on, but whether they are happy with the system. We see very few posts here that are simply statements of total bliss.
Let's use our logical minds for a change, no? If someone is dissatisfied with the sound of their system, it is not because they have made 100% perfect and ideal choices. They have either made a mistake or tolerated a compromise that should not have been tolerated.
My focus 140 have a [mostly] even response down to about 45 hz in my living room.
The fact that you repeat this shows that I have not communicated the true situation to you well enough.
I have no doubt that at some low SPL even a 2 1/2" speaker has clean response down to 10 Hz. It might only be 30 dB SPL (generally inaudible) but the speaker does respond and may even have even response.
In these days of DSPs and equalizers, even response down to 45 Hz may only be a run with Audessey XT32 or installation of a MiniDSP or DEQ2496 and some adjustments away.
However, fools that we audiophiles are, we have this strange idea that we want to actually hear the sound, not just measure it. At 20 or 45 or even 100 Hz, that requires a certain number of dB SPL and it ain't 30. It is 100, 110, even 120 dB SPL, depending.
So if you want to pleasure yourself and amuse knowledgeable people with vague mostly irrelevant statements like:
" My focus 140 have a [mostly] even response down to about 45 hz in my living room."
be my guest.
If you want a system that makes your recordings sound the way they were intended, consider doing more than just pleasuring yourself with words and phrases that are meaningless to knowledgeable people! ;-)
BTW here is the Focus FR plot from the Stereophile tests:
Yup, flat down to 45 Hz but at the expense of a fakey 5 dB hump at 80 Hz.
And here is the very optimistic dynamic range estimate for the 6.5 inch woofer in the 140:
Freq,Hz Max SPL, DB
If you seek a clean 100 dB SPL out of the 140s, don't push them much below 70 Hz. If you want a more satisfying 110 dB SPL, be sure to cross them over closer to 120 Hz.
Consulting the Fletcher Munson curves;
We see that the threshold of hearing at 45 Hz is about 55 dB SPL. The Focus 140s are only capable of creating sound at that point that is only about 40 dB above the threshold of hearing.