95 south Posted January 12, 2013 Report Posted January 12, 2013 I have a really new problem. I have 4 FI BL 12 inch subs in a shared enclosure. All 4 subs are dual 1 ohm subs with 4 inch voice coils. I just had 2 of them reconed and FI doesnt sell the 4 inch coil for the BL subs anymore so they sent me a SP4 recone with 4 inch coil instead. The re-coned subs now have a ton more excursion due to the longer coil of the SP4 than the other 2 subs and i am wondering if this will harm my subs? Should i re-cone the other 2 with the SP4 coils and call it a day? Please advise? No System......GFY
Noel989 Posted January 12, 2013 Report Posted January 12, 2013 I would say yes cause now you have different subs Build Log - http://www.stevemead...-cruiser-el-pt/
bkolfo4 Posted January 12, 2013 Report Posted January 12, 2013 How did Fi send you SP4 recones when they don't make a 12" SP4? Assuming they are similar to a SP4 recone, did you tell Fi you had 4 subs total? I assume you would have (or at least you should have), and they would have told you not to run them together if it was not ok. I bet they will work together without any issues. Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz.
SnowDrifter Posted January 12, 2013 Report Posted January 12, 2013 They probably put 4" coils on a 12" cone. I would re cone all the subs so they are the same ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444
AK bass Posted January 12, 2013 Report Posted January 12, 2013 They probably put 4" coils on a 12" cone. I would re cone all the subs so they are the same 100% agreed. no mixing subs even if they are the magnet a different recone makes a different sub. recone the other two to be safe. "The secret to creativity is knowing how to hide your sources." Albert Einstein
95 south Posted January 12, 2013 Author Report Posted January 12, 2013 Yeah if i can contact them i will see if i can get re-cone kits for the other 2 subs. No System......GFY
bkolfo4 Posted January 12, 2013 Report Posted January 12, 2013 I guarantee you it will not hurt a thing to run them together with the originals, unless you are using an extreme amount of power on them. Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz.
95 south Posted January 13, 2013 Author Report Posted January 13, 2013 I am running 2 Rockford Fosgate 2500-bdcp amps on all 4 subs so they each see around 1400-1500 watts. No System......GFY
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