Jordan Thurston Posted October 15, 2014 Author Report Share Posted October 15, 2014 Could be the amp it's a cheaper one but it sounds louder than my alpine mrp m1000 Link to comment Share on other sites More sharing options...
Jordan Thurston Posted October 15, 2014 Author Report Share Posted October 15, 2014 Would it be louder if I put one amp on each sub and keep the gain down so I don't blow the sub? Link to comment Share on other sites More sharing options...
Jordan Thurston Posted October 15, 2014 Author Report Share Posted October 15, 2014 I need to upgrade my electrical for that though I can't find an alternator for my car other thanks 170 amp alternator I don't think that will be big enough and I need another battery Link to comment Share on other sites More sharing options...
Joe X Posted October 15, 2014 Report Share Posted October 15, 2014 The dimensions you provide result in a 5 cubes gross internal volume, using 60 square inches of port and adding subs displacements, tuning to 36 Hz it will end up about 3.8 net so box seems good enough. The extra power won't help that much output. Unless something is wrong that I am not aware of (gains, electrical, port area etc) it looks to me that your system is nearly maxed out. You'll have to check everything is right but if it is and you want a significant bump in output, you will want to upgrade. Link to comment Share on other sites More sharing options...
Jordan Thurston Posted October 15, 2014 Author Report Share Posted October 15, 2014 It is pretty loud for just 2 12s and a cheap amp it's louder than most people's systems it looks like irragi makes a high output alternator for my car the engine wasn't listed it said to list it in the notes it's 555 bucks for a 320 amp alternator I don't think I need one that big could I get the 170 amp alternator. Would that be sufficient with a xs power xp2000 to run those 2 hifonics 1500 watt amps I'm guessing there around 1000 watts the guy said he clamped them at 1300 at 1 ohm Link to comment Share on other sites More sharing options...
Jordan Thurston Posted October 15, 2014 Author Report Share Posted October 15, 2014 Also I based the tuning of the port off from the 5 cube volume is that wrong is it supposed to be based off the 3.8 cubes volume? Link to comment Share on other sites More sharing options...
Joe X Posted October 15, 2014 Report Share Posted October 15, 2014 I would need to have full dimensions of your box to know exactly how is made but due to port and drivers displacements it can't be 5 cubes, pretty sure it's around 4 net which is about right for those subs. The E12s won't take 1300 each so if you don't want to build a larger box you could place subs with better power handling however just by changing to 15s that will increase your output by at least 3 dB on the same power, you would need to double your power to have 12s give that kind of output, this is a just a theoretical estimate of course but gives you an idea how important cone area is to output. Link to comment Share on other sites More sharing options...
Jordan Thurston Posted October 15, 2014 Author Report Share Posted October 15, 2014 So it would cost me less money to just get some 15s I think maybe some sa 15s then I can eventually put a little more power to them Link to comment Share on other sites More sharing options...
Joe X Posted October 15, 2014 Report Share Posted October 15, 2014 If you are pushing 1K to 2 E12s is fair to say that you would get increased output out of 2 SA-15s on the same power to E12sV1, some modeling data suggests about 3 dB of increased output in the box specs mentioned above at tuning, still an estimate but it gives you an idea. You would simply have to cross the thermal limit of the E12s to get that output. Link to comment Share on other sites More sharing options...
Jordan Thurston Posted October 15, 2014 Author Report Share Posted October 15, 2014 Ok I think I'm gunna save up for some sa 15s dc power does offer a high output alternator it's 650 bucks though so its a little pricey but eventually I need to get one and a better battery to Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.