![]() ![]() Yes, you can splice your amplifier speaker outputs into your factory speaker wires (for a 4-channel front/rear setup). Don't use 12gauge speaker wire for power, you'll damage the amp and it'll sound like crap. If you want more than 300wrms consider spending the coin and running 4 gauge power/gnd cables from the battery to where the amp will mount. Worse comes to worse you can always install a toggle switch under the dash to turn your amp on but don't leave it on when it's parked or you'll have a dead battery when u return. If using the stock HU you'll need to tap off the rear speaker outputs and get an amp that takes speaker level input and also activates on that input as most factory HU's don't have a remote turn on wire for amps and external accessories like crossovers, etc. To keep it simple, find an amp that has a built in crossover of 18db/octave or higher cutoff. If you have the room get at least a single 12inch sub that can handle at least 300wrms and a similar size amp, otherwise you'll want to upgrade real quick. So don't skimp on component $$$ spending. I wanted something bigger after only 2 weeks. My first subwoofer was a Denon 10" back in probably 1988. There are lots of tutorials to be found on the subject. Do a search for "subwoofer design" or similar in google. If you want a tiny box under the back seat, obviously an 18inch woofer that requires 10cu.ft box isn't going to cut it. Most subwoofer driver manufacturers will specify an ideal box design for their particular subwoofer for optimal performance. Generally a Q of less than 0.7 is sealed, and more than that for ported boxes. Some don't sound good in sealed boxes, other not in ported. If you plug these values into a formula you can figure out box tuning, port design, box volume, etc. The port size in diameter or if square, inches area, and length determine tuning frequency.Įach subwoofer will come with Thiele Small Parameter specifications. Output tends to be more boomy and peak at the tuning frequency. Tend to have more output (3db) compared to sealed but low bass extension isn't as good. Ported are usually larger, tuned to a frequency like 35hz for instance. Sealed is for small spaces and bass extension (looooow bass notes). Take a look at my personal site for detailed info on how sealed and ported boxes work. ![]()
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