Butyl Rubber Surround
Chrome Plated Back Plates
2" High Temp Kapton Voice Coil
-Bumped and Vented Yoke
-4 OHM Impedance
-Sapphire Blue Chrome Plated Injected Cone
-100 Oz. Magnet
this is for my subs the other thing above is the specz for amp
From looking at your amp and the specs of your subs you are not going to be able to produce the power that you are looking. It doesn not look like the amp can support a i ohm load with 2 channels. Look into getting 8 hom subs. That way when you bridge everything down you are dropping your amp to a 2 ohm load
, therefor making you have 300 watts rms!!!!
The spec from the amp are set in stone, 300 watts (I am assuming RMS...if not then take the 300W and divide by the square root of 2) is being out put to 2 channels each of whic MUST have a 2ohm impedance. Increasing the impedance of the speakers will only limit power output from the speakers (reduced sound) or give you distortion before the speaker can reach its maximums or even the RMS of the speaker. Conversly true is the fact if you run too little impedance for the speakers you will blow out the speaker before the amp even reaches it's maximum output or RMS power output. If you plan on runnning the amp with 2 subs and you want a maximum power transfer you must have 2 ohm speakers, according to Thevenin's maximum power transfer theroem...this is true for any circuit.
Since the impedandce of your speakers is high it is still possible to run them on two sperate channels. Start with your amp gain low to off and your head unit volume near max, if you have front speakers set the fader to the sub or rear to turn them off; just so you don't mess up your other speakers. Pop in a music sample then slowly adjust the gain till you hear the loudest thump/sound withOUT distortion...keep in mind this may occur quickly or being that the subs are 8 ohm not even at all. Next lower the volume of the headunit then turn on the rest of your speaker by adjusting the fader, etc the slowly raise you headunit volume to louder levels listen carefully for distortion. Just so you know the limits of the volume you can apply later while you cruise.
Alternatively you can hook both speakers into 1 channel of the 2 channels this will place the speakers in parallel, the impedance of the speaker in parallel is found by divinding the impednace of the speaker by the number of speaker hooked to a channel, 4ohm / 2 speaker = 2ohm...THIS IS NOT bridging the amp, its simply putting speakers in parallel, amp bridging requires jumper wires and blah as the diagrams show you from the amp manufacturer. So have your amp set up for a 2 channel output... leaving 1 channel empty. Try both methods and see which sound best...like I said I am no car stereo expert but I know circuits, if you dont feel confident ask some one at your local steroe shop...and if ya got questioins about what I wrote, juts let me know. Sorry its a novel