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<blockquote data-quote="Nick7" data-source="post: 3135828" data-attributes="member: 578353">Hi,having a new car, would like to build a sub box for it (a bit on budget).I&#039;m not looking to make something to wake neighbors, but to have nice, low bass.Speaker I have for this is quite old, but in good shape - Kenwood KFC-WS302.It took some time to find info, and this is what I got:KFC-WS30212&quot; Small Enclosure WooferGENERAL FEATURES- Butyl Rubber Surround- Concave Dust Cap- Designed for Use in Small Enclosures- Free-Air Resonance: 21Hz- Frequency Response: 18Hz - 3kHz- Gold-Plated, 2-Way SB Speaker Terminals- Impedance: 4 ohms- Magnet Protection Cover- Magnet Weight: 64.1 oz- Power Handling: 750 Watts- Sensitivity: 93dB- Speaker Displacement (cu ft): 0.147- Vented Voice Coil: 2-LayerAUDIO SPECIFICATIONS- Frequency Response: 18Hz - 3kHzSPEAKER SPECIFICATIONS- Diameter: 12&quot;- Magnet Weight: 64 oz- Mounting Depth: 5-5/8&quot;- Power Handling: 750 Watts- RMS Power Handling: 250 Watts- Sensitivity (1w/1m): 93dB- Speaker Displacement (cu. ft.): 0.147Recommended Sealed Box Vol: .88 cubic feet&nbsp; (vented not recommended)For Amplifier, also an old Alpine 3544.Now, what interests me most - in this info it says recommended box sealed box size is .88 cubic feet (aka 24.9liter).I could easily use more volume for box (around 50liter = 1.66 cubic feet) - however, what i wonder what would happen with sound?Will I get a bit better low-end bass, and a bit &#039;softer&#039;?I&#039;m looking for a &#039;soft&#039; deep bass with hopefully good SQ (don&#039;t care about SPL).Any help is welcome //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif</blockquote>

[QUOTE="Nick7, post: 3135828, member: 578353"] Hi, having a new car, would like to build a sub box for it (a bit on budget). I'm not looking to make something to wake neighbors, but to have nice, low bass. Speaker I have for this is quite old, but in good shape - Kenwood KFC-WS302. It took some time to find info, and this is what I got: KFC-WS302 12" Small Enclosure Woofer GENERAL FEATURES - Butyl Rubber Surround - Concave Dust Cap - Designed for Use in Small Enclosures - Free-Air Resonance: 21Hz - Frequency Response: 18Hz - 3kHz - Gold-Plated, 2-Way SB Speaker Terminals - Impedance: 4 ohms - Magnet Protection Cover - Magnet Weight: 64.1 oz - Power Handling: 750 Watts - Sensitivity: 93dB - Speaker Displacement (cu ft): 0.147 - Vented Voice Coil: 2-Layer AUDIO SPECIFICATIONS - Frequency Response: 18Hz - 3kHz SPEAKER SPECIFICATIONS - Diameter: 12" - Magnet Weight: 64 oz - Mounting Depth: 5-5/8" - Power Handling: 750 Watts - RMS Power Handling: 250 Watts - Sensitivity (1w/1m): 93dB - Speaker Displacement (cu. ft.): 0.147 Recommended Sealed Box Vol: .88 cubic feet (vented not recommended) For Amplifier, also an old Alpine 3544. Now, what interests me most - in this info it says recommended box sealed box size is .88 cubic feet (aka 24.9liter). I could easily use more volume for box (around 50liter = 1.66 cubic feet) - however, what i wonder what would happen with sound? Will I get a bit better low-end bass, and a bit 'softer'? I'm looking for a 'soft' deep bass with hopefully good SQ (don't care about SPL). Any help is welcome [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] [/QUOTE]

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