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<blockquote data-quote="trumpet" data-source="post: 8154383" data-attributes="member: 628688">Your rear seat passengers will have no trouble hearing the front speakers. While I think I understand the basis of &quot;SQL&quot;, the system you proposed is not terribly bass heavy and it should sound very well balanced when you adjust the sub level. Systems get labeled as SQL when they employ a loud subwoofer setup and the speakers have been upgraded. That&#039;s really all it takes, according to forum think.If you want a double DIN and to run the speakers active it makes the most sense to add an 8-channel processor. The only 3-way active double DIN head unit I&#039;m aware of is the Clarion NX702. There may be other options, but the main thing is to have a bandpass crossover for the midrange speakers. It&#039;s not enough to just have adjustable high pass or low pass filters on each channel.Doing the crossovers with a separate processor gives you a lot more control, and it really opens up your options for head units. The JBL MS-8 is one of the best selling processors, and it&#039;s one of few options for automatically tuning the equalizer and time delays. Audison is a good brand if you have local dealer support. Rockford Fosgate has the 360.3, Mosconi has the 4to6 and the 6to8, Arc has the PS8, and the list goes on. If you don&#039;t know how to tune I strongly recommend you make a decision based on what your local tuning expert is comfortable using.</blockquote>

[QUOTE="trumpet, post: 8154383, member: 628688"] Your rear seat passengers will have no trouble hearing the front speakers. While I think I understand the basis of "SQL", the system you proposed is not terribly bass heavy and it should sound very well balanced when you adjust the sub level. Systems get labeled as SQL when they employ a loud subwoofer setup and the speakers have been upgraded. That's really all it takes, according to forum think. If you want a double DIN and to run the speakers active it makes the most sense to add an 8-channel processor. The only 3-way active double DIN head unit I'm aware of is the Clarion NX702. There may be other options, but the main thing is to have a bandpass crossover for the midrange speakers. It's not enough to just have adjustable high pass or low pass filters on each channel. Doing the crossovers with a separate processor gives you a lot more control, and it really opens up your options for head units. The JBL MS-8 is one of the best selling processors, and it's one of few options for automatically tuning the equalizer and time delays. Audison is a good brand if you have local dealer support. Rockford Fosgate has the 360.3, Mosconi has the 4to6 and the 6to8, Arc has the PS8, and the list goes on. If you don't know how to tune I strongly recommend you make a decision based on what your local tuning expert is comfortable using. [/QUOTE]

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