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<blockquote data-quote="Rich B" data-source="post: 8385367" data-attributes="member: 571023">An EQ is used to adjust the frequencies of sound (multi-band tone controls), a DSP can include an EQ, but it most often can adjust the output of separate speakers so the sound from the left channel arrives at your ears at the same time as the sound from the right channel, putting the stereo image in the center of the dash.That is called &quot;time alignment&quot;, and most car audio diehards consider time alignment one of the most important ingredients in achieving good sound.If you have a recent home theater receiver that uses a mic during setup that is using DSP to both EQ the sound, and time align the speakers to each other.Car audio takes that DSP a step further than home theater by letting the user use individual amps for the various speakers, not just aligning the left with the right, but also allowing the alignment between the tweeters, mids, and even the subs so the resulting sound is more cohesive than whats possible in a reciever.But (theres always a but) DSP is much more complicated than just using an EQ, it takes a long time to get it right.</blockquote>

[QUOTE="Rich B, post: 8385367, member: 571023"] An EQ is used to adjust the frequencies of sound (multi-band tone controls), a DSP can include an EQ, but it most often can adjust the output of separate speakers so the sound from the left channel arrives at your ears at the same time as the sound from the right channel, putting the stereo image in the center of the dash. That is called "time alignment", and most car audio diehards consider time alignment one of the most important ingredients in achieving good sound. If you have a recent home theater receiver that uses a mic during setup that is using DSP to both EQ the sound, and time align the speakers to each other. Car audio takes that DSP a step further than home theater by letting the user use individual amps for the various speakers, not just aligning the left with the right, but also allowing the alignment between the tweeters, mids, and even the subs so the resulting sound is more cohesive than whats possible in a reciever. But (theres always a but) DSP is much more complicated than just using an EQ, it takes a long time to get it right. [/QUOTE]

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