View Single Post
      12-18-2012, 09:53 AM   #78
makkan00
Major General
 
makkan00's Avatar
 
Drives: E90
Join Date: Dec 2011
Location: Essex

Posts: 6,071
iTrader: (37)

Quote:
Originally Posted by kaigoss69 View Post
I suspect your problem has to do with the efficiency of the w7. Look at the graphs I posted, the w7 was getting 1000w vs 500w for the others. 3 db higher means twice as loud. I don't have the program here now but I bet that with a true IB sub you could reach the same output on less than 1/3 the power.

Kaigoss
I thought the input power was same for your graphs and I was very happy to see 12W7 doing best in 12 inch drivers.

Also looking at xmas graph, it had the max.

So did you compare 1000w input into JL vs 500w into other drivers?

Just read mob17's thread and even he is powering Fi IB3 with 800W approx which is way above PE rating for that sub.

I must also admit that my sub is setup with bass boost on nearly to 90% of its available range. I am thinking that it could be the reason that certain frequencies are getting boosted and reaching way above the rating of the sub or capacity of our cars---> leading to voltage drop?
__________________
<img src=http://i1259.photobucket.com/albums/ii559/makkan00/New-6_zpscbec0353.jpg border=0 alt= />
RETROFITS: LCI Conversion - LCI Xenons - LCI Tail lights - Memory heated seats
- Folding mirrors with auto-dip - CIC DAB Plus - Combox - 6FL - 6NF - 6NR - BMW
live & Internet MODS: Eibach Sportsline - AluFelgens CS7 - MS-8 - SWS-8 - Gladen

Last edited by makkan00; 12-18-2012 at 12:56 PM.
makkan00 is offline   United Kingdom
0
Reply With Quote