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9.G MANUAL EQ
The "Manual EQ" function lets you fine-tune your speakers.
The various settings available have a direct effect on your CAPELLA system's response curve. You can adjust
these settings while listening to a song, and see the correction made by enabling or disabling the function.
To ensure optimum use, it is best to have a basic understanding of the frequencies used and their functions.
As previously mentioned, the human ear perceives frequencies between 20Hz and 20,000Hz. Low frequen-
cies are at the beginning (bass), high frequencies at the end (treble). In between, you find a multitude of
nuances and details.
To help you adjust your Manual EQ settings correctly, here are a few guidelines. Consider that the audible
frequency band can be divided into eight frequency zones as follows:
Infrasonic frequencies (1Hz-20Hz): reproduced, for example, by earthquakes or
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large organs. This is more the sensation of a vibration than an audible sound.
Very low frequencies (20Hz-40Hz): reproduced, for example, by the bass drum of a drum kit, or the
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low notes of a piano or bass guitar. You need large speakers or a subwoofer to reproduce these fre-
quencies.
Low frequencies (40Hz-160Hz): these are the bass foundations of the music, providing
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roundness and impact. Setting this zone is an important part of the "Manual EQ".
Mid-low frequencies (160Hz-315Hz): reproduced by the piano's middle C note.
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Average frequencies (315Hz-2.5kHz): reproduced, for example, by the speaker of your
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mobile phone.
Mid-high frequencies (2.5khz -5kHz): this zone is sensitive for our hearing, as the frequencies emitted
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are close to the ear's resonance frequency.
High frequencies (5khz-10khz): these are harmonics of the notes produced in the previous zones.
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These frequencies are highly directive, and often require you to stand in front of the speakers to fully
perceive them.
Very high frequencies (10kHz-20kHz): these are also harmonics of the highest notes, specific to some
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instruments. This range is more difficult to perceive, as the sensitivity of the ear deteriorates over time.
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