Break in/Coil Question

[NoFearX18]

I just recently got 2 AA Mayhems. I am only using 1 right now. it is a dual 1 ohm sub. I have an AQ2200D. the sub is wired to a 1/2 ohm. My BTL 18 i had last was wired at 1/2 aswell and the amp took it all day with no problems. both coils on the BTL read .7 just as they should.

With me new sub the coils read .6. they are .7 ohm coils according to AA site. Them being lower is apparently causing my amp to go into protect... I have been told 2 different stories. Some people tell me that as the sub breaks in it will cause a slight increase in impedance. Is this true? Other say it will more than likely stay the same.

If you don't know please don't comment.

Let me know,

Thanks!

[loburbon]

everytime your sub moves your impedence will change. hook up your dmm to you and gently push on your cone of the btl's and the mayhams. see how much of a difference there is between the two. 20 to 1 says the mayham has far less change. add this to the fact that your sub is not broke in, therefore it is not moving much, so your box rise could be to a minimum. now i could be completely off, but without being there and seeing it, all i can do is give you my opinion on the problem. i have had the same problem with 9500 series dd's when they were new.

[NoFearX18]

everytime your sub moves your impedence will change. hook up your dmm to you and gently push on your cone of the btl's and the mayhams. see how much of a difference there is between the two. 20 to 1 says the mayham has far less change. add this to the fact that your sub is not broke in, therefore it is not moving much, so your box rise could be to a minimum. now i could be completely off, but without being there and seeing it, all i can do is give you my opinion on the problem. i have had the same problem with 9500 series dd's when they were new.

I dont have the BTL any more. But yea the sub is extremely stiff. I was just thinking that once it loosens up i should be ok considering the BTL was pretty much broken in by the time i went to the AQ.

I mean its not like i turn the truck on and pop instant protect. i can play it for a good while, then the amp gets warm. then it will hit a hard punchy note a it goes protect. but other times i can play sounds like "Put on" and it will play just fine for the most part. Its not like its not playing at all.

Im just concerned.

[loburbon]

if i was you i would play it easy for a bit til it loosens up a bit more. once broke in, you shouldn't have a problem.

[loburbon]

also did you clamp your set up when you had the btl? if so what was your box rise? clamp it again with the aa and see what rise you get.

[NoFearX18]

also did you clamp your set up when you had the btl? if so what was your box rise? clamp it again with the aa and see what rise you get.

I believe Kian on our team did. But we kept getting different readings each time we tried it. it was really weird. but he said i have a very low rise. i forget exactly what he said because it was a good 2-3 BBq's ago.

yea i am going to take it easy. tomorrow i think ill throw the other sub in the car and see if it does it too. i havent checked the coils on that one yet. my personal dmm is broken so ill have to wait til i get to work in the morning.

[loburbon]

cool. keep us informed

[fritosaregood]

i think it would be healthier for the amp to wire the sub in series until its broken in more.

[jesterjames]

imp of the coils will never go up as you break it in, if anything it will drop as it breaks in. Double check your DMM by touching the leads together.

[loburbon]

your misunderstanding what is being said. the coils will always be at .6 on his meter. but the impedence changes as the sub moves. with the sub not being broke in, it is not moving very much. with a broke in sub the susp is much looser allowing the cone to move more. if you dont believe me hook up your dmm to a sub and get the reading. then push on the sub and see what happens.