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<blockquote data-quote="Jeffdachef" data-source="post: 8720185" data-attributes="member: 650438"><p>The only processor that upmixes into a dolby 5.1/7.1 properly is the JBL MS8 which is discontinued. All other sound processors just give you 8 channels to work with but still output 2.1 stereo audio straight from the source. There is no actual surround at all. You are just having multiple speakers in different locations outputting 2.1 stereo. For reference thats all channel stereo mode in home audio. You also need to leave behind all knowledge of home audio and keep it out of car audio, these are two different beasts with different purposes.</p><p></p><p>What the processor is for is to achieve proper blend between sub, midbass, midrange, and tweeter by splitting the signal up via crossovers that you can adjust specified frequencies each driver takes care of through the software.This is needed because you are in a chaotic acoustical environment with reflections this helps tame peaks and dips which give a smooth response. So each driver takes care of its specified range of frequencies. The DSP also time corrects each driver so that all sounds waves hit your ears at the same time. Then has a 31 band parametric EQ to further fine tune everything for perfect SQ. </p><p></p><p>Any kind of rear speakers would destroy the soundstage completely by pulling the stage from the front of the dash back to the driver seat and messes up instrument separation and overall frequency response due to different angles, reflections, drivers etc ... If you want dream SQ, get rid of the idea of running rears completely.</p><p></p><p>As for a dsp, helix and alpine is top dog. For budget (but still great dsp, the dayton dsp 408 and bluetooth dongle is around 180 and does the job just fine. You can Download the app now and play around with it see if you like the interface. Most other dsps need a laptop to tune.</p></blockquote><p></p>
[QUOTE="Jeffdachef, post: 8720185, member: 650438"] The only processor that upmixes into a dolby 5.1/7.1 properly is the JBL MS8 which is discontinued. All other sound processors just give you 8 channels to work with but still output 2.1 stereo audio straight from the source. There is no actual surround at all. You are just having multiple speakers in different locations outputting 2.1 stereo. For reference thats all channel stereo mode in home audio. You also need to leave behind all knowledge of home audio and keep it out of car audio, these are two different beasts with different purposes. What the processor is for is to achieve proper blend between sub, midbass, midrange, and tweeter by splitting the signal up via crossovers that you can adjust specified frequencies each driver takes care of through the software.This is needed because you are in a chaotic acoustical environment with reflections this helps tame peaks and dips which give a smooth response. So each driver takes care of its specified range of frequencies. The DSP also time corrects each driver so that all sounds waves hit your ears at the same time. Then has a 31 band parametric EQ to further fine tune everything for perfect SQ. Any kind of rear speakers would destroy the soundstage completely by pulling the stage from the front of the dash back to the driver seat and messes up instrument separation and overall frequency response due to different angles, reflections, drivers etc ... If you want dream SQ, get rid of the idea of running rears completely. As for a dsp, helix and alpine is top dog. For budget (but still great dsp, the dayton dsp 408 and bluetooth dongle is around 180 and does the job just fine. You can Download the app now and play around with it see if you like the interface. Most other dsps need a laptop to tune. [/QUOTE]
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