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


Reply
 
Thread Tools Search this Thread
Old 24th January 2006, 09:40   #1
BHPian
 
Join Date: Jan 2006
Location: Bangalore/London
Posts: 126
Thanked: Once
Unhappy Help required for rich bass in Esteem

Hi Bhpians,

Needless to say that I have found all the necessary information from your wonderfully organised forum. I own an Esteem VXPS and reside at Bangalore and moving to Hyderabad in couple of days. My passion of rich pass still remains a dream even after spending heck of money on my audio system. My configuration is as below :

1. Poineer 7650
2. TS-20 Tweeters at front
3. Poineer 4 channel amp 400W (exact model no. I forgot, but it has big fins all round)
4. Pioneer Mono Block Amp M510 D Class 1000w
6. 6X9 Poineer 330 w rear speaker.
7. Poineer 305 Sub 600w free air
8. 1 Poineer 306c 1000w enclosure type.

I had installed all these on advice of one shop in bangalore near Lifestyle, now you guys know where from.

The two subs are enclosed in a ported model box with two subs facing outside and the ports facing upwards. The rear channel is connected to Mono block amp.

Even after tuning and many options which i tried, I do not get the rich bass and jarrs a lot on turning the volume up.

My doubts are is the free air sub a culprit for being eclosed, should I change the 600w one to 1000w enclosure type, but it will be 2000w in total drawing power from 1000w amp.

Is the ported box which is made locally the culprit and one of my friend advised for a another type of box where the subs are installed inside and only the outlets are visible, i think its called band pass box, if I am right. Should I change it to that type of box.

Please advice me as I am tried of experimenting so much. I always go by words of the dealer and end up disappointed and they again advice on much more costlier things. Please Please advice on next action which would suffice my dream of good bass.

Thanks in advance to all Bhpians

KIRAN
kiran1103 is offline   Reply With Quote
Old 24th January 2006, 11:06   #2
Team-BHP Support
 
navin's Avatar
 
Join Date: Mar 2004
Location: mumbai
Posts: 22,500
Thanked: 3,878 Times
Default

Quote:
Originally Posted by kiran1103
Hi Bhpians,

6. 6X9 Poineer 330 w rear speaker.
7. Poineer 305 Sub 600w free air
8. 1 Poineer 306c 1000w enclosure type.

The two subs are enclosed in a ported model box with two subs facing outside and the ports facing upwards. The rear channel is connected to Mono block amp.

Even after tuning and many options which i tried, I do not get the rich bass and jarrs a lot on turning the volume up.

My doubts are is the free air sub a culprit for being eclosed, should I change the 600w one to 1000w enclosure type, but it will be 2000w in total drawing power from 1000w amp.

Is the ported box which is made locally the culprit and one of my friend advised for a another type of box where the subs are installed inside and only the outlets are visible, i think its called band pass box, if I am right. Should I change it to that type of box.
1. A picture or 2 would help us see what you got.

not having the above picture here are a list of things you shoudl consider

a. Are the 12" subs acoustically isolated from the 6x9" in the rear deck. If not I suspect the jarring is the 6x9's being pushed to their physical limits by the 12". In any cae it is best to isolate the 6x9 it will improve their midrange performance.

b. you for a 305F and a 306C working in the same box? Why did you buy 2 different woofers. While I dont think this is the cause of the jarring having 2 woofer with significanlt different T/S parameters wont give you the best bass.

c. While the system is playing try and locate the source of teh jarring. gently touch all posible soruces (6x9 cone, woofer box, rear deck, port etc..) and seeif touching one of these reduces or eliminates the jarring. I wont be surprised if someting other than the woofer cones is shaking.

d. A speaker can only draw as much current/voltage as an amp and deliver. After which the amp will clip. Since these are woofers they are not likely to get damanged without complaing (significant high order distortion). However try turning the gain down on the woofer amp aand see what happens. Upgrading to a "2000W" amp might not given you any significant advantage.

Bandpass boxes are not known for their quality of bass. In any case with your odd combination of woofers I wonder what sort of bass you'd get.
navin is offline   Reply With Quote
Old 24th January 2006, 12:31   #3
BHPian
 
Join Date: Jan 2006
Location: Bangalore/London
Posts: 126
Thanked: Once
Default

[SIZE=2]Hi Navin, [/SIZE]
[SIZE=2][/SIZE]
[SIZE=2]Thanks a million for the reply, I have done many of the steps which u suggested. I will definately post the pics of my sub boxes for more clarity in isolating the issue. The 6X9 speakers are mounted on 1 3/4 mdf board in the rear and subs are enclosed in one box with two partitions and kept in the boot. The rear board is cut in square where the bass ports and facing. Anyway pics will help u a lot, I will post the pics shortly as I am in Hyderabad now. The main thing is the bass is not neat its somewhat irritating. By the way is the Poineer Mono block 510M a good choice. Anyway i have already invested on it so need to keep it. I have also tried connecting one 600w F sub to the 4 channel amp brigdging it and other 1000W to the Mono block but i dont find much difference and it jarrs more. Maybe i am using a wrong word jarr, it should be like the bass is not of good thump or neat, just somewhat iritating. When i hear some others cars audio i feel they sound better. Dunno how that too without a mono block amp. The subs i bought for 3500, now the dealer lures me for taking some hig end subs costing some 7500 each and another mono block amp. But my feeling is that some people with the same subs sound better. so whats wrong in my setup is the main worry. Hope u will throw more light on this. By the way your info is a lot helpful not only for me but all the bhpians and visitors.[/SIZE]
[SIZE=2][/SIZE]
[SIZE=2]KIRAN[/SIZE]
kiran1103 is offline   Reply With Quote
Old 24th January 2006, 12:52   #4
Team-BHP Support
 
navin's Avatar
 
Join Date: Mar 2004
Location: mumbai
Posts: 22,500
Thanked: 3,878 Times
Default

ok try the following. try stuffing the bass ports with cloth and see if teh bass jarring reduces. this will also reduce the level of the bass but what we are trying to do is first improve the quality of the bass and then try to increase the quantity of the bass.
navin is offline   Reply With Quote
Old 24th January 2006, 13:46   #5
BHPian
 
Join Date: Jun 2005
Location: Bangalore
Posts: 690
Thanked: Once
Default

Quote:
Originally Posted by navin
ok try the following. try stuffing the bass ports with cloth and see if teh bass jarring reduces. this will also reduce the level of the bass but what we are trying to do is first improve the quality of the bass and then try to increase the quantity of the bass.
Aperiodic, one of Navin's favourites.
Vivekphadnis is offline   Reply With Quote
Old 24th January 2006, 14:49   #6
BHPian
 
Join Date: Jan 2006
Location: Bangalore/London
Posts: 126
Thanked: Once
Default

Yes will also try this sir.
kiran1103 is offline   Reply With Quote
Old 24th January 2006, 16:28   #7
Team-BHP Support
 
navin's Avatar
 
Join Date: Mar 2004
Location: mumbai
Posts: 22,500
Thanked: 3,878 Times
Default

Aperiodic allows one tu tune the bass in a simple manner to suit your tastes, the enviroment and the drivers used.

There are other configurations that allow this but require far more complex engineering and knowledge of acoustics.
navin is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
How rich were the Maharajas before Independence! Cars of the Maharajas v12 Pre-War 1310 18th November 2017 04:35
Rich begger adya33 Shifting gears 2 5th August 2005 13:07
rich=good driver?? souled Shifting gears 11 22nd May 2004 22:47
Cars for the Super-Rich _Crazi4Speed_ The International Automotive Scene 2 6th March 2004 12:21


All times are GMT +5.5. The time now is 08:15.

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