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

DerAlte · 7th July 2009, 22:56

Quote:

Originally Posted by gigy

... just learning things the hard way. ...

THat's what a master does, right?

Quote:

Originally Posted by gigy

... no fault codes of input short. ...

Huh? Input short is anyway not a fault, output short is. Did you try chalu 'grounding input with finger' test like the PA guys do? Connect speakers, damp your forefinger and place across an RCA socket! A loud brrrrp indicates amp health.

gigy · 7th July 2009, 23:50

Tried that fingering method but no response. put in a sony 222 for the time being for the fronts only and its working fine.

DerAlte · 8th July 2009, 08:54

Uh-oh! Needs more analysis. Try one of these Kenwood authorized service centers.

greenhorn · 8th July 2009, 10:58

I was trying to set the gain in my KAC 5203, but for some reason, it remained constant. tried it with my nail, then a knife, then a screw driver, couldnt get my sub to go any louder.
Finally i hurt my finger in the process, dont know how, and then my amp started playing loud and clear

.
Is my amp a vampire? or is it just a simple case of a sadistic amp?

Anybody know why ?

Disclaimer : PJ alert

jithudigitised · 9th July 2009, 00:38

maybe its the green ghost.

is the gain and input sensitivity same ?

Asking coz, i have also the same amp powering my illusion electras.

govigov · 9th July 2009, 03:04

really wierd issue with my amp/sub/ or dont know what. when i plug in one of the rca cables(all the other 3 are already in). this is for the sub(ch3) the sub goes all booomy and shudders to al its glory. it does not matter what volume, as long as the hu is turned on it does this. now i am not able to listen to any songs at all as the whole system is a mess. any ideas?

DerAlte · 9th July 2009, 13:37

Quote:

Originally Posted by greenhorn

... Is my amp a vampire? or is it just a simple case of a sadistic amp? ...

C. None of the above!

The slider of the amp pot has come loose with all you unconventional tools. Must have got deflected and was not making contact properly. Take a conventional screw-driver with a tip wide enough to sit in the slot, jiggle that plastic part a little bit, softly turn it all the way CCW and CW a couple of times checking the effect, and then set it where you want it.

Quote:

Originally Posted by jithudigitised

...is the gain and input sensitivity same ?...

Yes.

Quote:

Originally Posted by govigov

... this is for the sub(ch3) the sub goes all booomy and shudders to al its glory. it does not matter what volume, as long as the hu is turned on it does this. ...

Are you sure the RCA cable are connected correctly, i.e. L to amp L ... Sub to Sub amp channel? If so, is the sub channel gain set properly at the amp or is it at full on? Check once again.

Also check if the outer terminal of the connector at each end of the sub cable is actually connected to the cable. Remove the cable at both ends and check continuity with a multimeter, especially after jiggling the connector & cable around a bit. One end open might result in the amp whole-heartedly amplifying white noise also.

If everything is fine outside the HU, the HU is suspect, but I doubt if that is the case, since there are no electro-mechanical components in the HU to go loose (other than the RCAs connectors).

govigov · 9th July 2009, 16:28

ok that issue is sorte3d out. now have sdjusted the gain as per the voltmeter setup. but it is real flat now. as in it used to sound great now it is plain flat. help? may be there is something wrong with hpf/lpf settings.

edit: what is this pink/white brown noise? how do i use that to tune the system?

DerAlte · 9th July 2009, 16:36

What are the settings on HPF for main components, and LPF for sub?

I presume 'plain flat' means you are not getting the punch any more. Perhaps the HPF is set too high (120 or more) and LPF too less (65 or something). Ideally both should be the same, i.e. around 80.

greenhorn · 9th July 2009, 17:14

Quote:

Originally Posted by DerAlte

C. None of the above!

The slider of the amp pot has come loose with all you unconventional tools. Must have got deflected and was not making contact properly. Take a conventional screw-driver with a tip wide enough to sit in the slot, jiggle that plastic part a little bit, softly turn it all the way CCW and CW a couple of times checking the effect, and then set it where you want it.

In a way, DerAlte is right. It is none of the above, including DerAlte's technically correct explanation. Well, the correct answer is much simpler

No Pain, No Gain

gigy · 9th July 2009, 18:54

Thanks for the numbers. the chakala guy's numbers have changed. colaba guy is available, have to take the amplifier there though. will repair and sell it off as its too big for a safe install.
i have called for blau 5 channel as its small, can be mounted behind the lpg tank, the only safe place to prevent any damage.

DerAlte · 9th July 2009, 21:30

Quote:

Originally Posted by greenhorn

... Well, the correct answer is much simpler ... No Pain, No Gain

Ahem! What / who was the real culprit?

Quote:

Originally Posted by gigy

... i have called for blau 5 channel as its small, can be mounted behind the lpg tank, the only safe place to prevent any damage.

THA555?

How much are you getting it for and from where?

Careful around the LPG tank, baba, take extra precautions to prevent sparks! Use crimp-type wire lugs on all wires, with heat-shrink tubing leaving only the tip that goes into the sockets. This will prevent frayed edges causing problems. Allow decent bending radius on turns, and use cable stays to firmly fix the cables in place

jithudigitised · 9th July 2009, 22:16

Can anyone help me with the Aux In input of my Pioneer DEH P4850MP.

The case is that, i want to connect my usb/iPod/mp3 player to the said HU.But since it doesnt have any slots,i am looking at the Aux In option(HU has a IP bus connector in the back panel with ipod support, it seems).

After a lot of googling i find out that,a IP bus connector(or adapter) is needed.BUt i am not that much convinced about how to use that.

Will using the connector solve my problem,if yes,where to get the adapter.

greenhorn · 9th July 2009, 22:45

If you're willing to be a guinea pig for this
Gutterslide.com - Pioneer IP-BUS Hack
I'm ready :P
I'd already thought of something similar earlier
http://www.team-bhp.com/forum/diy-do...x-adapter.html

jithudigitised · 9th July 2009, 23:23

If it dosnt cost me my HU, then i am ready.hehe

7th July 2009, 23:50	#9542
gigy Senior - BHPian Join Date: Jul 2006 Location: mumbai Posts: 1,321 Thanked: 47 Times	Tried that fingering method but no response. put in a sony 222 for the time being for the fronts only and its working fine.
	() Thanks

8th July 2009, 08:54	#9543
DerAlte Senior - BHPian Join Date: Mar 2007 Location: Bangalore Posts: 8,035 Thanked: 2,920 Times	Uh-oh! Needs more analysis. Try one of these Kenwood authorized service centers.
	() Thanks

8th July 2009, 10:58	#9544
greenhorn BANNED Join Date: Apr 2007 Location: KL-01 Posts: 7,878 Thanked: 4,910 Times View My Garage	I was trying to set the gain in my KAC 5203, but for some reason, it remained constant. tried it with my nail, then a knife, then a screw driver, couldnt get my sub to go any louder. Finally i hurt my finger in the process, dont know how, and then my amp started playing loud and clear. Is my amp a vampire? or is it just a simple case of a sadistic amp? Anybody know why ? Disclaimer : PJ alert
	() Thanks

9th July 2009, 00:38	#9545
jithudigitised BHPian Join Date: Nov 2006 Location: Thiruvananthapuram Posts: 358 Thanked: 141 Times View My Garage	maybe its the green ghost. is the gain and input sensitivity same ? Asking coz, i have also the same amp powering my illusion electras.
	() Thanks

9th July 2009, 03:04	#9546
govigov Senior - BHPian Join Date: Oct 2007 Location: Cochin!!!!! Posts: 1,738 Thanked: 1,222 Times View My Garage	really wierd issue with my amp/sub/ or dont know what. when i plug in one of the rca cables(all the other 3 are already in). this is for the sub(ch3) the sub goes all booomy and shudders to al its glory. it does not matter what volume, as long as the hu is turned on it does this. now i am not able to listen to any songs at all as the whole system is a mess. any ideas?
	() Thanks

9th July 2009, 16:28	#9548
govigov Senior - BHPian Join Date: Oct 2007 Location: Cochin!!!!! Posts: 1,738 Thanked: 1,222 Times View My Garage	ok that issue is sorte3d out. now have sdjusted the gain as per the voltmeter setup. but it is real flat now. as in it used to sound great now it is plain flat. help? may be there is something wrong with hpf/lpf settings. edit: what is this pink/white brown noise? how do i use that to tune the system? Last edited by govigov : 9th July 2009 at 16:31.
	() Thanks

9th July 2009, 16:36	#9549
DerAlte Senior - BHPian Join Date: Mar 2007 Location: Bangalore Posts: 8,035 Thanked: 2,920 Times	What are the settings on HPF for main components, and LPF for sub? I presume 'plain flat' means you are not getting the punch any more. Perhaps the HPF is set too high (120 or more) and LPF too less (65 or something). Ideally both should be the same, i.e. around 80.
	() Thanks

9th July 2009, 18:54	#9551
gigy Senior - BHPian Join Date: Jul 2006 Location: mumbai Posts: 1,321 Thanked: 47 Times	Thanks for the numbers. the chakala guy's numbers have changed. colaba guy is available, have to take the amplifier there though. will repair and sell it off as its too big for a safe install. i have called for blau 5 channel as its small, can be mounted behind the lpg tank, the only safe place to prevent any damage.
	() Thanks

9th July 2009, 22:16	#9553
jithudigitised BHPian Join Date: Nov 2006 Location: Thiruvananthapuram Posts: 358 Thanked: 141 Times View My Garage	Can anyone help me with the Aux In input of my Pioneer DEH P4850MP. The case is that, i want to connect my usb/iPod/mp3 player to the said HU.But since it doesnt have any slots,i am looking at the Aux In option(HU has a IP bus connector in the back panel with ipod support, it seems). After a lot of googling i find out that,a IP bus connector(or adapter) is needed.BUt i am not that much convinced about how to use that. Will using the connector solve my problem,if yes,where to get the adapter.
	() Thanks

9th July 2009, 22:45	#9554
greenhorn BANNED Join Date: Apr 2007 Location: KL-01 Posts: 7,878 Thanked: 4,910 Times View My Garage	If you're willing to be a guinea pig for this Gutterslide.com - Pioneer IP-BUS Hack I'm ready :P I'd already thought of something similar earlier http://www.team-bhp.com/forum/diy-do...x-adapter.html
	() Thanks

9th July 2009, 23:23	#9555
jithudigitised BHPian Join Date: Nov 2006 Location: Thiruvananthapuram Posts: 358 Thanked: 141 Times View My Garage	If it dosnt cost me my HU, then i am ready.hehe
	() Thanks