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Need Tuning Help: Crossovers!
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<blockquote data-quote="onyxaltezza" data-source="post: 4769431" data-attributes="member: 590450"><p>Hey hows it going guys. Im fairly new here so please bear with me if Im not providing enough info, or not asking specific enough questions for getting help //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif</p><p></p><p>Anyways, Ive installed systems before, for myself and a few friends. I just run the wiring and throw int he hardware, but Ive never had to really tune anything before...</p><p></p><p>My friend has a Mazda3 with a stock headunit, Infinity speakers, and an Alpine amp delivering 60W RMS per speaker. His sound is CRYSTAL clear, with decent midbass, and no distortion at all at any spectrum of sound...</p><p></p><p>I recently upgraded all my hardware, and Im having a hard time getting crystal clear sound.</p><p></p><p>This setup is in a 1992 Toyota MR2 T-Tops!</p><p></p><p>I'll try to give as much detail as I possibly can:</p><p></p><p>Pioneer Avic D3</p><p></p><p>Alpine MRP-F550 Amp</p><p></p><p>Alpine SPR-17S Components</p><p></p><p>Alpine MRP-M600 Amp</p><p></p><p>Alpine SWS-1042D Subs</p><p></p><p>Subs are 1 behind each seat, each in sealed .65cu ft truck boxes.</p><p></p><p>Entire interior was recently sound deadened: floors, roof, firewall, doors.</p><p></p><p>The car's engine is in the back, so I mounted the amps in the front where the spare is supposed to be, right next to the battery.</p><p></p><p>From the Battery:</p><p></p><p>4AWG to distribution block, to 8AWG to each amp. There is less than 3-4 ft of power wire.</p><p></p><p>Each amp is grounded with 8AWG wire, each ground wire is less than 3ft long.</p><p></p><p>Wiring from both sub amp and speaker amp is 12AWG to the subs/components.</p><p></p><p>Sub wires are about 15 ft and Component wires are about 12 ft.</p><p></p><p>Amps are grounded at different points, but both in the front trunk on the chassis. Ground points have been sanded down.</p><p></p><p>Now, the car being T-Tops, makes it really hard to hear the mids when on the freeway. Not to mention the spool of the turbo behind me is also pretty loud(not that I mind that at all //content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif) My 3" turbo back exhaust isnt exactly quiet either...</p><p></p><p>Now Ive got the MRP-F550 bridged to power only one pair of components, which means Im sending 250W RMS to each of the speakers. They are rated at 110W RMS. I have the gains set all the way down, since Im still breaking them in.</p><p></p><p>Now before, I would run HPF on the components, and set the subs to FPF. It just sounded better that way, dont ask! hahah.</p><p></p><p>My last setup I had the HPF on the components, and LPF on the subs. With this setup, the highs were harsh, and the mids werent very great. It was high highs, and deep lows. Nothing in between. Maybe I should have went with Infinity Kappas isntead, but I am not liking the mid of these Alpines even though the midbass is awesome.</p><p></p><p>No on the amp, I have the components crossed over at 120hz @ lowest gain and full pass. On the Avic, I have the HPF set at 80hz. I really have no idea what Im doing here. My highs seem to be distorting now, when I crank it up a bit more than normal. With 250W RMS per speaker, midbass is AMAZING, I didnt even need subs, really. But the mids and highs are still not that great. I have the tweets at -3db on the crossovers. Would adjusting the level of the tweets on the Xovers affect distortion?</p><p></p><p>Should I just go back to running HPF on the components at 125hz? Ive never had an AMP with a built in Xover, usually just on the HU itself...</p><p></p><p>What are your settings guys? I hate hearing nothing but highs on the freeway, and feeling the bass but no in between. It sounds soooo HOLLOW! Thanks!</p><p></p><p>-Aaron</p></blockquote><p></p>
[QUOTE="onyxaltezza, post: 4769431, member: 590450"] Hey hows it going guys. Im fairly new here so please bear with me if Im not providing enough info, or not asking specific enough questions for getting help [IMG]//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif[/IMG] Anyways, Ive installed systems before, for myself and a few friends. I just run the wiring and throw int he hardware, but Ive never had to really tune anything before... My friend has a Mazda3 with a stock headunit, Infinity speakers, and an Alpine amp delivering 60W RMS per speaker. His sound is CRYSTAL clear, with decent midbass, and no distortion at all at any spectrum of sound... I recently upgraded all my hardware, and Im having a hard time getting crystal clear sound. This setup is in a 1992 Toyota MR2 T-Tops! I'll try to give as much detail as I possibly can: Pioneer Avic D3 Alpine MRP-F550 Amp Alpine SPR-17S Components Alpine MRP-M600 Amp Alpine SWS-1042D Subs Subs are 1 behind each seat, each in sealed .65cu ft truck boxes. Entire interior was recently sound deadened: floors, roof, firewall, doors. The car's engine is in the back, so I mounted the amps in the front where the spare is supposed to be, right next to the battery. From the Battery: 4AWG to distribution block, to 8AWG to each amp. There is less than 3-4 ft of power wire. Each amp is grounded with 8AWG wire, each ground wire is less than 3ft long. Wiring from both sub amp and speaker amp is 12AWG to the subs/components. Sub wires are about 15 ft and Component wires are about 12 ft. Amps are grounded at different points, but both in the front trunk on the chassis. Ground points have been sanded down. Now, the car being T-Tops, makes it really hard to hear the mids when on the freeway. Not to mention the spool of the turbo behind me is also pretty loud(not that I mind that at all [IMG]//content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif[/IMG]) My 3" turbo back exhaust isnt exactly quiet either... Now Ive got the MRP-F550 bridged to power only one pair of components, which means Im sending 250W RMS to each of the speakers. They are rated at 110W RMS. I have the gains set all the way down, since Im still breaking them in. Now before, I would run HPF on the components, and set the subs to FPF. It just sounded better that way, dont ask! hahah. My last setup I had the HPF on the components, and LPF on the subs. With this setup, the highs were harsh, and the mids werent very great. It was high highs, and deep lows. Nothing in between. Maybe I should have went with Infinity Kappas isntead, but I am not liking the mid of these Alpines even though the midbass is awesome. No on the amp, I have the components crossed over at 120hz @ lowest gain and full pass. On the Avic, I have the HPF set at 80hz. I really have no idea what Im doing here. My highs seem to be distorting now, when I crank it up a bit more than normal. With 250W RMS per speaker, midbass is AMAZING, I didnt even need subs, really. But the mids and highs are still not that great. I have the tweets at -3db on the crossovers. Would adjusting the level of the tweets on the Xovers affect distortion? Should I just go back to running HPF on the components at 125hz? Ive never had an AMP with a built in Xover, usually just on the HU itself... What are your settings guys? I hate hearing nothing but highs on the freeway, and feeling the bass but no in between. It sounds soooo HOLLOW! Thanks! -Aaron [/QUOTE]
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