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Bronze Member Username: Jonez788Post Number: 72 Registered: Jun-04 | Okay, I just got my Kicker CVR 12" today and it says that the box I got will only give 300 watts max power handling. Should I have got a sealed box instead? I could still cancel my vented box. Vented: http://bigdogaudio.com/proddetail.asp?prod=BIG122SQRV Sealed:http://www.cardomain.com/item/RTE32312 They will be powered by a Kicker KX 800.2. What box do you guys think? |
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Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 3992 Registered: Dec-03 | you can use the ported box, and set the infrasonic filter on the amp to 20Hz, and low pass filter to around 70-80Hz. then properly set the gains on the amp and be careful with it. if you hear it start to distort or bottom out, turn it down a bit or reduce the sub out signal at the head unit to say -3dB. That should avoid any damage to the sub(s.) Or, you can go sealed if you like, then the infrasonic filter isn't needed. same LPF XO point of 70-80Hz. Power handling will increase. you'll lose a little bit of peak SPL. accuracy will be better, but you'll forsake a bit of transient response because the damping of a sealed box prevents the sub from being able to respond quite as quickly as it can with a ported box. (remember sealed means pressure inside the box.. nowhere to push it out like a ported box, so it has to compress the air. that slows the sub a bit.) no coloration in a sealed box like with ported though, and never any issues with port noise or harmonics. it's up to you. |
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Bronze Member Username: Jonez788Post Number: 73 Registered: Jun-04 | Okay, I guess I'll stick with the ported. On the website it says that it's for these subs. But ummm, I odn't get the Low Pass Filter settings and infrasonic filter. I have Bass Boost, X-OVER, Gain, and then a switch where I can select "Lo-Pass." What should I set the cross over at and bass boost? |
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Bronze Member Username: Jonez788Post Number: 74 Registered: Jun-04 | Oh, and should I maybe just get some Poly-Fill for the box? And when I was wiring the subs there is a white dot on one of the positive terminals and on one of the negatives....does that mean anything? |
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Bronze Member Username: JmloughreyFarmington, CT Post Number: 38 Registered: Jul-04 | The dots are for the separate voice coils, consolt the manual for proper wiring for your sub. |
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wronganswerglasswolf Unregistered guest | It is generally accepted that an optimized sealed enclosure exhibits the best transient response characteristics. The control provided by the air-spring in a good sealed system contribute to generally outstanding transient behavior (at very high power levels, the increased distortion can overshadow this advantage, however.) A ported enclosure can also achieve good transient behavior but never as good as an optimized sealed enclosure. It is possible, however, for a well-designed ported enclosure to have better transient response characteristics than sealed enclosures with higher Qtc's (above 1.0.) The specific alignment of the sealed and ported enclosures plays a huge role in determining the transient characteristics of each individual subwoofer system. **quoted from http://www.jlaudio.com/tutorials/magic/performance.html** |