Go Back   Team-BHP > Under the Hood > In-Car Entertainment


Closed Thread
 
Thread Tools Search this Thread
Old 27th February 2009, 16:35   #106
Senior - BHPian
 
frankmehta's Avatar
 
Join Date: Mar 2006
Location: Mumbai
Posts: 3,866
Thanked: 2,231 Times
Default

great great!! congrats! is this the final upgrade or is there anything else in the pipeline ;-)
frankmehta is offline  
Old 27th February 2009, 16:39   #107
Team-BHP Support
 
navin's Avatar
 
Join Date: Mar 2004
Location: mumbai
Posts: 22,505
Thanked: 3,882 Times
Default

Quote:
Originally Posted by abhinav.gupta88 View Post
The problem earlier was that my subs need 1000w each ( = 2000wrms) while JBL gives 1500w rms at 2 ohms.
So the subs were underpowered.
What makes you say you subs were underpowered?

Could you hear the sub hit their Xmax? or the effects (dynamic range compression especially on impulse).

A sub that can absorb 1500W or even 750W at 30hz has to have a very nice suspension. At 300Hz the same is not a problem. Subwoofer ratings are for their thermal limits. However in most cases subwoofers tend to be more limited by the abilties of their spiders, surrounds, etc..
navin is offline  
Old 27th February 2009, 16:55   #108
Senior - BHPian
 
Join Date: Mar 2006
Location: Faridabad
Posts: 6,814
Thanked: 294 Times
Default

Quote:
Originally Posted by navin View Post
A sub that can absorb 1500W or even 750W at 30hz has to have a very nice suspension. At 300Hz the same is not a problem. Subwoofer ratings are for their thermal limits. However in most cases subwoofers tend to be more limited by the abilties of their spiders, surrounds, etc..
Navin Ji the problem Abhinav was facing that the Sub-woofer amp used to reduce the output when pushed hard. Earlier it was running at 2 ohms and now he is running it at 4 ohms. So the output is better when driving at 4 ohms. Earlier I think the subs were not getting full power so that the XMAX was not reached but not it will be a problem as whole power would be diverted to one sub. Now a little tuning will be required including a HPF also.

Last edited by low_bass_makker : 27th February 2009 at 16:57.
low_bass_makker is offline  
Old 27th February 2009, 17:03   #109
Team-BHP Support
 
navin's Avatar
 
Join Date: Mar 2004
Location: mumbai
Posts: 22,505
Thanked: 3,882 Times
Default

Quote:
Originally Posted by low_bass_makker View Post
the Sub-woofer amp used to reduce the output when pushed hard. Earlier it was running at 2 ohms.
This is why I do not like pushing amps at 2 ohms even if they are rated so. Keep them in safe limits and they perform better.
navin is offline  
Old 27th February 2009, 18:00   #110
Senior - BHPian
 
Join Date: Mar 2006
Location: Faridabad
Posts: 6,814
Thanked: 294 Times
Default

Quote:
Originally Posted by navin View Post
This is why I do not like pushing amps at 2 ohms even if they are rated so. Keep them in safe limits and they perform better.
Totally agreed. It is better for the sub also it will get cleaner signal and result in better sound.
low_bass_makker is offline  
Old 27th February 2009, 20:09   #111
Senior - BHPian
 
abhinav.gupta88's Avatar
 
Join Date: Sep 2007
Location: Delhi , India
Posts: 4,087
Thanked: 308 Times
Default

Back to the 2 ohm currently.
Need to save some money for the upgrade.
Thanks for the help guys.

Thanks Frank , Karan.
abhinav.gupta88 is offline  
Old 27th February 2009, 20:50   #112
BHPian
 
VOiLA's Avatar
 
Join Date: Jul 2007
Location: Hmmmm....
Posts: 102
Thanked: 0 Times
Default

JBL 14001 x 1 @ 4ohms each ?

if yes then good choice !
VOiLA is offline  
Old 27th February 2009, 22:02   #113
Senior - BHPian
 
abhinav.gupta88's Avatar
 
Join Date: Sep 2007
Location: Delhi , India
Posts: 4,087
Thanked: 308 Times
Default

2 JBL 14001.
Giving 1200w rms @ 4 ohms and 14.4 v each.
abhinav.gupta88 is offline  
Old 28th February 2009, 00:43   #114
Senior - BHPian
 
Invinsible's Avatar
 
Join Date: Nov 2006
Location: Bombay
Posts: 1,257
Thanked: 60 Times
Default

Quote:
Originally Posted by abhinav.gupta88 View Post
2 JBL 14001.
Giving 1200w rms @ 4 ohms and 14.4 v each.
WOW! with 2 of them at that given output would be 2400 RMS. GOD! am sure it's gonna shatter lot many glass windows around. What's the SPL gonna be 150+.. makes me wonder.
Invinsible is offline  
Old 28th February 2009, 00:52   #115
Senior - BHPian
 
abhinav.gupta88's Avatar
 
Join Date: Sep 2007
Location: Delhi , India
Posts: 4,087
Thanked: 308 Times
Default

I dont think it will reach 150.
Expecting around 140-141 or something.
Rest lets just wait for figures.
abhinav.gupta88 is offline  
Old 9th March 2009, 13:13   #116
Senior - BHPian
 
abhinav.gupta88's Avatar
 
Join Date: Sep 2007
Location: Delhi , India
Posts: 4,087
Thanked: 308 Times
Default

Ding.
Guys
tested the 14001 again.
Its lowering the volume after 30 volume.

Suggest me some more amps ~2200w rms at 2 ohms or 2 ~1200w rms at 1/4 ohms.

Help.
I am ready to spend around 35000 on the amp. ( after selling my 14001 that is)
abhinav.gupta88 is offline  
Old 9th March 2009, 13:18   #117
Senior - BHPian
 
karankapoor's Avatar
 
Join Date: Apr 2008
Location: in the car!!!
Posts: 1,679
Thanked: 2 Times
Default

hehe you are back again with the same thing....

go for steg 2.04 think that is 1200 x 2 @1oh

Last edited by karankapoor : 9th March 2009 at 13:20.
karankapoor is offline  
Old 9th March 2009, 13:29   #118
Senior - BHPian
 
abhinav.gupta88's Avatar
 
Join Date: Sep 2007
Location: Delhi , India
Posts: 4,087
Thanked: 308 Times
Default

No steg for me. ( too costly)
called up LBM , he said it might be due to the excess power supplied to the sub
Will get it checked by him and lets hope things go well.
abhinav.gupta88 is offline  
Old 9th March 2009, 13:42   #119
BHPian
 
VOiLA's Avatar
 
Join Date: Jul 2007
Location: Hmmmm....
Posts: 102
Thanked: 0 Times
Default

Quote:
Originally Posted by abhinav.gupta88 View Post
No steg for me. ( too costly)
called up LBM , he said it might be due to the excess power supplied to the sub
Will get it checked by him and lets hope things go well.
good luck bro
don't forget to call me when you upgrade

Last edited by Jaggu : 9th March 2009 at 14:04. Reason: Smilie usage restrict to 2 per post
VOiLA is offline  
Old 9th March 2009, 14:55   #120
Senior - BHPian
 
Invinsible's Avatar
 
Join Date: Nov 2006
Location: Bombay
Posts: 1,257
Thanked: 60 Times
Default

Great so you are back to square one.
Well to start with if you can source one from the US, may be this would interest you.

Hifonics BXI 2610D - Hifonics 2400W 1 Channel Mono-Block Amplifier

SPL FX1-4000D - SPL 4000 Watt Class D Monoblock Amplifier

or may be the JBL GTO24001
Invinsible is offline  
Closed Thread


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Difference between a Monobloc and 2 Channel Amplifier for the Subwoofer? frankmehta In-Car Entertainment 52 21st November 2011 17:23
Advice needed for performance upgrade for the 1.3 Ikon Dragonov Modifications & Accessories 5 4th June 2006 12:43
Budget Car Audio Advice Needed Guys thief In-Car Entertainment 22 26th January 2006 14:59
advice needed: car audio in hyundai accent amit_baghe In-Car Entertainment 273 25th December 2005 00:04
Repainting & "Sumo to Sumo victa" conversion. Advice needed. nitrous Modifications & Accessories 0 21st November 2005 12:57


All times are GMT +5.5. The time now is 02:33.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks