AudioControl The Director D3400, Руководство по установке

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are found in this range. If accentuated too much (by boosting
this control) sounds in the 2500Hz range can seem harsh and
fatiguing to the ear due to excessive output by the speaker or
because of live, reflective room acoustics.
12kHz — High treble. The fine detail, texture and sheen
of music is found here. The breathiness of vocals, the “sheen”
of cymbals, the high overtones of piano and strings. Actually,
there’s audible music information up to 20,000Hz on some
CDs and most adult’s hearing is still pretty good at 15,000Hz.
We’ve chosen 12,000Hz because it provides more useful
control to compensate for room acoustics and common small-
speaker deficiencies.
Subsonic and Tweeter Protection Filters
The Subsonic (aka High Pass) filter and Tweeter Protec -
tion (aka Low Pass) filter are adjusted on the signal pro -
cessing web page along with equalization. Their function is
simply to make the speakers sound better, play louder, and
last longer.
All speakers have frequency response limita -
tions. For the best performance, we want to operate
speakers in their linear zone, that is the frequen
-
cies where their sound reproduction is not compro -
mised by mechanical limitations.
If you do operate speakers near or at their me -
chanical limits, sound is compromised and parts
of the speakers are stressed and, in some cases,
heat up shortening its life. In other words, both
the tweeter protection and subsonic filter are very
important tools. Experiment with higher subsonic
filters, and lower tweeter protection settings, than
you might think from the published specifications
of the speaker. If you do these experiments with
higher/lower settings, most likely, you will find the system ac -
tually sounds much better than pushing the frequency limits.
For sure the speaker will be less stressed and last longer.
Memories
On The Director there are three memories if you wish to
have different configurations. Those memories are saved on
the Signal Processing web page. When saving a memory, you
are saving all the signal processing web page settings (equal
-
ization and filters).
Adjusting the Signal
Processing