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<blockquote data-quote="Hjbennett" data-source="post: 7839088" data-attributes="member: 643756">I have a 2011 Hyundai Sonata and want to add a sub in the trunk. The car has a cut-out in rear deck for an 8&quot; open air sub from the factory. But I actually want a bigger sound. Due to budget constraints, I ordered a Kicker 12&quot; L3 and a Kicker ZX300.1. I have a friend who does stereo system installs and builds enclosures. I&#039;ve seen and heard his system and it sounds great and with his custom fiberglass/mdf enclosures it looks professional.I&#039;ve always either ran stock systems or when I was much younger, had a system installed for me.&nbsp; I&#039;ve been reading the forums trying to educate myself as much as possible so I won&#039;t appear to be a ******* when I&#039;m discussing and &quot;helping&quot; him do the install and make the enclosure. I know I want it ported. The specs on the sub are as follows:SIZE [in, cm]: 12, 30IMPEDANCE [Ohms]: 2 or 4 DVCPOWER WATTS [peak/RMS]: 800/400SENSITIVITY [dB 1w/1m]: 86.3MOUNTING DEPTH [in, cm]: 6-1/4, 15.8MOUNTING DIAMETER [in, cm]: 11-1/16, 28.1MIN SEALED BOX VOL [cu. ft, L]: 1.25, 35.4MAX SEALED BOX VOL [cu. ft, L]: 4.6, 130MIN VENTED BOX VOL [cu. ft, L]: 1.75, 49.6MAX VENTED BOX VOL [cu. ft, L]: 2.25, 63.7and the amp:Amplifier Class&nbsp; ABNumber of Channels&nbsp; 1 - MonoTotal Peak Power Output&nbsp; 900 wattsTotal RMS Power Output&nbsp; 300 wattsMaximum Input Gauge Size&nbsp; 8 AWGMinimum Impedance Unbridged&nbsp; 2 ohmsTHD at Rated RMS Power&nbsp; 1%Speaker Level Inputs&nbsp; YesPreamp Outputs&nbsp; NoBuilt-in Crossover&nbsp; Low-pass (LP)Low-Pass Crossover Frequency&nbsp; Fixed at 80 HzSubsonic Filter&nbsp; 0 - 25 HzSignal-to-Noise Ratio&nbsp; 96 dBBass Boost&nbsp; 0 - 12 dBBass/Gain Remote&nbsp; YesI would say a ported enclosure firing toward the trunk would be optimal for sql.Lotta greek there. My questions:-First, will this setup be adequate for no-earth shaking bass, but a nice sound.-For SQL what should be the cu. ft. of the&nbsp; ported enclosure?-Which tunes the sub for best sql, size of port or size of enclosure?-Enclosure material: I&#039;m going to use MDF, so 3/4&quot;? carpet for covering? Or is covering just cosmetic?- Should I remove plastic cap from the empty sub on the rear deck for sound to enter cab of car?Any other basic information you feel like tossing out here so I can at least understand what he&#039;s talking about will be greatly appreciated.</blockquote>

[QUOTE="Hjbennett, post: 7839088, member: 643756"] I have a 2011 Hyundai Sonata and want to add a sub in the trunk. The car has a cut-out in rear deck for an 8" open air sub from the factory. But I actually want a bigger sound. Due to budget constraints, I ordered a Kicker 12" L3 and a Kicker ZX300.1. I have a friend who does stereo system installs and builds enclosures. I've seen and heard his system and it sounds great and with his custom fiberglass/mdf enclosures it looks professional. I've always either ran stock systems or when I was much younger, had a system installed for me. I've been reading the forums trying to educate myself as much as possible so I won't appear to be a ******* when I'm discussing and "helping" him do the install and make the enclosure. I know I want it ported. The specs on the sub are as follows: SIZE [in, cm]: 12, 30 IMPEDANCE [Ohms]: 2 or 4 DVC POWER WATTS [peak/RMS]: 800/400 SENSITIVITY [dB 1w/1m]: 86.3 MOUNTING DEPTH [in, cm]: 6-1/4, 15.8 MOUNTING DIAMETER [in, cm]: 11-1/16, 28.1 MIN SEALED BOX VOL [cu. ft, L]: 1.25, 35.4 MAX SEALED BOX VOL [cu. ft, L]: 4.6, 130 MIN VENTED BOX VOL [cu. ft, L]: 1.75, 49.6 MAX VENTED BOX VOL [cu. ft, L]: 2.25, 63.7 and the amp: Amplifier Class AB Number of Channels 1 - Mono Total Peak Power Output 900 watts Total RMS Power Output 300 watts Maximum Input Gauge Size 8 AWG Minimum Impedance Unbridged 2 ohms THD at Rated RMS Power 1% Speaker Level Inputs Yes Preamp Outputs No Built-in Crossover Low-pass (LP) Low-Pass Crossover Frequency Fixed at 80 Hz Subsonic Filter 0 - 25 Hz Signal-to-Noise Ratio 96 dB Bass Boost 0 - 12 dB Bass/Gain Remote Yes I would say a ported enclosure firing toward the trunk would be optimal for sql. Lotta greek there. My questions: -First, will this setup be adequate for no-earth shaking bass, but a nice sound. -For SQL what should be the cu. ft. of the ported enclosure? -Which tunes the sub for best sql, size of port or size of enclosure? -Enclosure material: I'm going to use MDF, so 3/4"? carpet for covering? Or is covering just cosmetic? - Should I remove plastic cap from the empty sub on the rear deck for sound to enter cab of car? Any other basic information you feel like tossing out here so I can at least understand what he's talking about will be greatly appreciated. [/QUOTE]

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