Aquatic AQ-AD300.2 Panduan Pemilik - Halaman 10

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CONNECTORS DEFINED (CONT.)

Crossover filter adjustment

The purpose of a crossover circuit is to filter out a specific range of frequencies from a

speaker's input to maximize its performance. For a tweeter, the goal is to filter out low

(bass) range frequencies to maximize the high range (treble) response. Conversely,

for a subwoofer, the goal is to filter out the high and mid range frequencies, leaving

only low frequencies to play through the woofer. There are two kinds of crossover

implementations, active or passive:

Active Crossover

This filters selected frequencies before the audio signal is amplified, between the

source unit and amplifier. Our built-in crossovers are an example of this type of crosso-

ver.

Pros:

By removing unwanted frequencies from the signal before it's amplified, your output

becomes more efficient, only working to amplify the desired range of frequencies.

Cons:

By removing unwanted frequencies from the signal before it's amplified, you are

dedicating those filtered channels to only provide a certain frequency range.

Passive Crossover

This filters selected frequencies after the audio signal has been amplified, between

the amplifier and speaker. Some speakers are sold with passive crossovers included,

typically a small plastic enclosure, or capacitors and/or coils mounted directly to the

speaker.

Pros:

By removing unwanted frequencies from the signal after it's amplified, your ampli-

fier's output is still full range, allowing more flexible use, able to drive tweeters, mid-

range, and subwoofers alike.

Cons:

By removing unwanted frequencies from the signal after it's amplified, you are forc-

ing the full range of frequencies to be amplified, reducing the amplifier's maximum

possible efficiency.

Our built-in active crossover(s) are fully adjustable from 50hz to 250hz, using

either a low-pass mode (bass only) or high-pass mode (midrange and highs

only) to easily maximize your speaker's potential.

Default: when using any 6.5" to 8" speakers, the

recommended settings are high pass mode with

the frequency filter set at or above 150hz.

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