Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

Ajay · 22nd July 2005, 16:50

Navin,

Thanks!
Will check on that.
I have turned down the bass from the HU and the Equalizer to the lowest level though.

Sam Kapasi · 22nd July 2005, 16:51

Quote:

Originally Posted by Ajay

Gurus'

Car- lancer
rockford components in the front,
Pioneer speaker 6X9 on the rear parcel shelf,
rockford Punch sub again on the rear shelf,
Boss audio amp powering the sub and one sony 502 powering the components.
Boss-Equaliser
HU-JVC 405

Thanks

Dear Ajay,
Hi!

I quite like being called a Guru.

ok listen, lose the Boss-Equaliser. Honestly doesnt belong in this setup and is spoiling your sound. Trust me take it out and sell it off. My professional opinion.

navin · 22nd July 2005, 17:02

so evne though there is no audible bass you still get vibrations. even when the car is not running (idling). then check all connections. i would even go so far as to check every RCA wire.

navin · 22nd July 2005, 17:04

better still ....can you detail volume, quality, and freq of the noise the best you can.

does it increase with revs, does it sound like a gun shot, does it sound like a motor boat, etc...

Ajay · 22nd July 2005, 17:04

Sam,

Any alternative to the Boss equalizer? and Is it a bad idea to have put the sub on the rear tray?

Appreciate your thoughts.

Rtech · 22nd July 2005, 17:07

Thread named changed !!!

Ajay · 22nd July 2005, 17:10

Navin

The jar appears to come from the rear. The bass is at level 1. The sub freq is down, the sub vol is at level 1 or 2. The jar is evident. any more + 'es on the setup it becomes very very evident.

navin · 22nd July 2005, 17:10

if the tray is well damped you can get away with that. i'd offer you suggestions but then Sam says my suggestions scare most people (the last time I did I was offering advise on building speaker cabinets). Sam is more practical.

Why EQ? does not the sub amp have some sort of EQ. most sub amps have some sort of semi-parametric EQ and XO turnover choices.

Free Air subs are designed for this install. Their suspension, cone mass etc are optimised for this. Only most ceaks are 16ga steel. That is not much. You could get a 19mm MDF deck made to repalce it.

navin · 22nd July 2005, 17:14

maybe your woofer is damaged. disconnect the woofer and listen. if a woofer's suspension is damaged even a bit of power can push it to it's physical limits. BTW is the sound a sort of grating sound or like a whip crack?

navin · 22nd July 2005, 17:16

Quote:

Originally Posted by Rtech

Thread named changed !!!

How come i get top billing? Sam is the one from the industry and much more current.

Rtech this is totally tounge in cheek. We old men tend to ramble. The mouth's in gear before the brain has been engaged.

Ajay · 22nd July 2005, 17:19

It is more like grating sound. Dont know about the Damage to the woofer. Will have to check out that as well.

navin · 22nd July 2005, 17:21

a-ha my guess is the voice coil of the woofer has gotten mis-aligned or you got dust between the voice coil and magnet. Either way I fear you'd have to get the woofer repaired son. The good guys I knew in this area are dead or retired. Sam can you help?

Revvhead · 22nd July 2005, 17:22

Quote:

Originally Posted by Ajay

It is more like grating sound. Dont know about the Damage to the woofer. Will have to check out that as well.

Oy sam, Is that grating sound from you,
I sincerely hope your woofer is not damaged!!

navin · 22nd July 2005, 17:25

disconnect the woofer and enjoy atleast some music till the woofer gets repaired. sorry about this. lets hope it is not a multiple magnet sub like some. Focal Audiom, Audio Concepts etc... are a pain to fix. C ya. Will check in tom.

Rtech · 22nd July 2005, 17:27

Quote:

Originally Posted by navin

How come i get top billing? Sam is the one from the industry and much more current.

Rtech this is totally tounge in cheek. We old men tend to ramble. The mouth's in gear before the brain has been engaged.

Age and alphabetical order got the better of Sam

22nd July 2005, 16:50	#151
Ajay BHPian Join Date: Jun 2005 Location: B'lore Posts: 147 Thanked: 5 Times	Navin, Thanks! Will check on that. I have turned down the bass from the HU and the Equalizer to the lowest level though.
	() Thanks

22nd July 2005, 17:02	#153
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,199 Thanked: 9,306 Times	so evne though there is no audible bass you still get vibrations. even when the car is not running (idling). then check all connections. i would even go so far as to check every RCA wire.
	() Thanks

22nd July 2005, 17:04	#154
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,199 Thanked: 9,306 Times	better still ....can you detail volume, quality, and freq of the noise the best you can. does it increase with revs, does it sound like a gun shot, does it sound like a motor boat, etc...
	() Thanks

22nd July 2005, 17:04	#155
Ajay BHPian Join Date: Jun 2005 Location: B'lore Posts: 147 Thanked: 5 Times	Sam, Any alternative to the Boss equalizer? and Is it a bad idea to have put the sub on the rear tray? Appreciate your thoughts.
	() Thanks

22nd July 2005, 17:07	#156
Rtech Team-BHP Support Join Date: Apr 2004 Location: Bombay Posts: 5,770 Thanked: 359 Times View My Garage	Thread named changed !!!
	() Thanks

22nd July 2005, 17:10	#157
Ajay BHPian Join Date: Jun 2005 Location: B'lore Posts: 147 Thanked: 5 Times	Navin The jar appears to come from the rear. The bass is at level 1. The sub freq is down, the sub vol is at level 1 or 2. The jar is evident. any more + 'es on the setup it becomes very very evident.
	() Thanks

22nd July 2005, 17:10	#158
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,199 Thanked: 9,306 Times	if the tray is well damped you can get away with that. i'd offer you suggestions but then Sam says my suggestions scare most people (the last time I did I was offering advise on building speaker cabinets). Sam is more practical. Why EQ? does not the sub amp have some sort of EQ. most sub amps have some sort of semi-parametric EQ and XO turnover choices. Free Air subs are designed for this install. Their suspension, cone mass etc are optimised for this. Only most ceaks are 16ga steel. That is not much. You could get a 19mm MDF deck made to repalce it.
	() Thanks

22nd July 2005, 17:14	#159
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,199 Thanked: 9,306 Times	maybe your woofer is damaged. disconnect the woofer and listen. if a woofer's suspension is damaged even a bit of power can push it to it's physical limits. BTW is the sound a sort of grating sound or like a whip crack?
	() Thanks

22nd July 2005, 17:19	#161
Ajay BHPian Join Date: Jun 2005 Location: B'lore Posts: 147 Thanked: 5 Times	It is more like grating sound. Dont know about the Damage to the woofer. Will have to check out that as well.
	() Thanks

22nd July 2005, 17:21	#162
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,199 Thanked: 9,306 Times	a-ha my guess is the voice coil of the woofer has gotten mis-aligned or you got dust between the voice coil and magnet. Either way I fear you'd have to get the woofer repaired son. The good guys I knew in this area are dead or retired. Sam can you help?
	() Thanks

22nd July 2005, 17:25	#164
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,199 Thanked: 9,306 Times	disconnect the woofer and enjoy atleast some music till the woofer gets repaired. sorry about this. lets hope it is not a multiple magnet sub like some. Focal Audiom, Audio Concepts etc... are a pain to fix. C ya. Will check in tom.
	() Thanks