another idmax ?

[liftedcj7on44s 10+ year member]

sorry guys but i have 1 final question. idmax 12 d4 v3 recieving 1000watts in a 1.4 cuft sealed box in the trunk of an 03 taurus. How loud should it be. and dont say it in DB cuz i dont know what say 130 or 140db should sound like. i need to know before i go and spend another 400 buks on a amp and not cure my prob!

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[DFW40 10+ year member]

A sealed sub like that will sound nice and get rather loud on low rap notes but it will not be that loud on kick drums etc. it will sound tight but not that loud. I really think for sealed you need either two 10s or bigger.

 

[req 5,000+ posts]

um. that was a retarded comment.

apparently you know nothing about the idmax. so please dont respond.

the idmax should get loud, it will have a smooth rolloff in a sealed box, so it shuld be able to hit low notes with the sacrafice of volume as the notes get close to 20hz. the upper extension depends mostly on the LPF on the amp.

there is no reference that i could get you to explain how loud it SHOULD get. other than decibles. i would say that it should be able to produce 135~138 on a termlab. but that is a guess.

if i were you, before i go and buy another idmax, i would build a ported box for it and see if that is the gain in SPL you are looking for.

http://www.imagedynamicsusa.com/tech_page.php?name=IDMAX10D4%20V.3&type=sub&id=idmax

as you can see ported will yield quite a bump in SPL, on this graph - its about 5db versus sealed with a little sacrifice in SQ, however most people dont notice the lack of sound quality.

also, be aware that with the advent of a bass reflex enclosure, you will need (or should) use a subsonic filter, wich is just a highpass filter set at the tuning frequency of the enclosure (lets say ~35hz). and that ported boxes are more efficent - so you should also turn the gain down just a little bit to give the sub a break, as more power is not needed in this application //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

hope that helps. and if it does not solve your problem... you can always get another idmax //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[liftedcj7on44s 10+ year member]

well i am in the process of getting a ported box built for it, 2.7 cubes at 28hz. Im just trying to get some kinda reference on how loud this thing should be. my IDQ12v1 on a punch 250.2 was louder than this idmax on a infinity 1211a. I have been trying to figure out what the problem is and im about to go buy a sundown saz-1500d this weekend, i just hope that this sub will wake up. my amp has been giving me mixed results. 1 day i checked it with a fluke DMM and could only reach a target voltage of 27 volts which is roughly 365 watts. i think i have a bum amp but im not sure. If this thing wont wake up anymore than what it is then i guess ill have to sell it and go with a FI BTL 18 or something. I would think though that a IDmax 12 off 1000 true watts would wang and wang pretty hard. I mean ID told me that this sub in the box its in with 1000 watts should do a 140. I need to know though how loud a 135-140 is. if someone can tell me how loud 135-140db is then i will know whether or not to buy the amp or buy the amp and ditch the sub!