6,8,4..12
summary of some notes-
Nearfield Monitoring and why the smaller speakers are better?
Problem:
typical "home" recording rooms have high risk of wall & window noise alias reflections being added into the sound. (bad) not hearing just the music but also the reflections from your walls which can confuse mixing decisions.
Fix:
To eliminate the rooms unwanted reflections Nearfield Monitoring is
common practice. Nearfield= Listener is ~3-4ft from speakers.
Question:
Why not a 12" Nearfield woofer?4"?6.5"?8"?
Speaker "dispersion" is the critical issue.
Distance vs. Diameter.
Dispersion is a physics issue- just the way it is...no getting around this.
FACT:20-Hertz tone creates a 57-foot long wave
and a 20-kHz tone is 0.057 feet (0.684 inches).
FACT:dispersion characteristics of a speaker is fundamentally determined by a combination of the
1)wavelength it's producing and
2) the physical size (diameter) of the driving element
(woofer, cone, dome, etc.).
3)As the wavelength of the sound begins to approach the size of the driver's radiating surface, the dispersion pattern begins to narrow appreciably, until the driver is radiating more like a spotlight(focused) than a floodlight (un-controlled).
-Dispersion Pattern narrows faster on a smaller diameter speaker due to wavelength reaching drivers radiating surface faster.
(narrow pattern=good=focused)
Thats a fancy explanation for why
LIVE ROCK CONCERTS DON'T USE 4" WOOFERS
and PRO Recording studios don't have 15" subs bolted
to their consoles as Nearfileds?
Speaker Dispersion man, can you dig it???
DISTANCE vs DIAMETER....
> Whats best 8" vs. 6.5" vs. 5" vs. 4"?
Depends on our listening distance and speaker dispersion.
(& I guess our ears?all other factors being equal?) fhk i don't know!
but I'll bet 5/6.5" is standard Nearfield probably because
3-4ft is standard Nearfield distance...it's physics.
Extreme example Headphones and 8"...difference is Diameter/ Distance
from our ears.
>
