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

kpzen · 10th January 2006, 16:33

Quote:

Originally Posted by navin

1K for a MDF rear deck (free air) an

Sir, please could u explain this??? did u mean the MDF box

navin · 10th January 2006, 16:41

Nah only a rear deck. your exisiting fiber deck wont be able to support a 12" woofer comfortably. you'd need to replace it with one made from wood. MDF is a cheap form of wood.

Sam Kapasi · 10th January 2006, 17:45

You get these readymade trays, made of MDF, that will support your woofer. I think they cost about 700 rupees.

paharino1 · 10th January 2006, 18:06

ICE Trends in automobiles..for all the gurus & fans ..
http://news.com.com/Carmakers+park+i...tag=html.alert

amit1101 · 11th January 2006, 18:27

TELL ME WHY

a HU 50pmpo*4 , ***no amp***, 300pmpo 60RMS pioneer at rear, pioneer 110Wpmpo in front door.
The HU provides all the 4 speakers( 2 rear , 2 front) with same power
all speakers have 4ohm inpedance
HOW come the rear speakers sound loud

u will say they are more powerfull 300pmpo
well i'll say speakers is a passive eliment , and HU provides all speakers with same power,
Then how come rear is louder??????

:-) May god rain upon you, A6000GTI if you ans this question :-)

aseem · 11th January 2006, 18:39

Quote:

Originally Posted by amit1101

TELL ME WHY

a HU 50pmpo*4 , ***no amp***, 300pmpo 60RMS pioneer at rear, pioneer 110Wpmpo in front door.
The HU provides all the 4 speakers( 2 rear , 2 front) with same power
all speakers have 4ohm inpedance
HOW come the rear speakers sound loud

u will say they are more powerfull 300pmpo
well i'll say speakers is a passive eliment , and HU provides all speakers with same power,
Then how come rear is louder??????

:-) May god rain upon you, A6000GTI if you ans this question :-)

This happens as most ppl have bigger coaxials in the rear and small 4 inchers in the front. The fronts produce less bass, as they have a small cone and music stage becomes rearish. However this is purely due to having different size/spec speakers in front and rear. Put the same speaker size and spec in front and rear and they both will sound equally lound!

navin · 11th January 2006, 19:10

also the rear speakers have a huge box (trunk) while the front speakers have a small door as a box.

kpzen · 11th January 2006, 23:11

Quote:

Originally Posted by navin

also the rear speakers have a huge box (trunk) while the front speakers have a small door as a box.

How will it sound if i replace the front small speakers with 6x9 in my zen..
Can i have 4 6x9 speakers without amp....

rsjaurr · 11th January 2006, 23:11

And probably sensitivity feature of spk also influence loudness as more sensitive one will be louder for given power as compared to other one with less sensivity.

amit1101 · 11th January 2006, 23:36

Quote:

Originally Posted by rsjaurr

And probably sensitivity feature of spk also influence loudness as more sensitive one will be louder for given power as compared to other one with less sensivity.

There is just too much diffrence b/w the front and the rear coax.
not just bass the mid freq power is also more in rear coax.

ITS definately the sensitivity factor of the speaker as this guy says.

rsjaurr- may god rain that a6000gti upon u r car

navin · 11th January 2006, 23:45

Quote:

Originally Posted by kpzen

How will it sound if i replace the front small speakers with 6x9 in my zen..
Can i have 4 6x9 speakers without amp....

dont expect bass out of the 6x9 in the front. sure you can run speakers without an amp. an amp just offers better control and more SPL. also you will need a spacer and maybe some metal cutting to shoe horn the 6x9 in the front door.

rsjaurr · 12th January 2006, 09:56

Quote:

Originally Posted by amit1101

There is just too much diffrence b/w the front and the rear coax.
not just bass the mid freq power is also more in rear coax.

ITS definately the sensitivity factor of the speaker as this guy says.

Amit sensitivity factor will only become significant when rear and front have different sensitivty.But in cases where front and rear r same or of in same range[e.g. infinty reference 5010 compo in front and 5012 coaxil in rear],then other factors as mentioned by navin and other r major factor.

Now i will have infinty kappa 60.7 compo in front and infinty kappa 62.7 in rear[sensitivity of both is same--95db@2.83v,1m].Here sensitivity factor will not come into picture,i suppose.Front spk may seem loud to me as i will be sitting on fornt seat.

Quote:

rsjaurr- may god rain that a6000gti upon u r car

nah...not upon my car but few feet away from it so that i can pick it and install in my car.

navin · 12th January 2006, 10:48

sensitivity is measured in an assumed box volume. as you make the box smaller the sensitivity esp in the bass reduces. so the same speaker will sound less sensitive in a smaller box.

if you drive then this is compensated by the fact that though the front speakers are usually producing fewer db per watt they are closer to you.

i dont drive so i use a Senheisser 565 with my ipod. adequate for my in car back seat needs. I intend to upgrade to a good headpone amp soon one maybe build one into the rear arm rest or something like that when time permits.

Sam Kapasi · 17th January 2006, 17:39

Quote:

Originally Posted by amit1101

May god rain upon you, A6000GTI if you ans this question :-)

that will be god's most painful and heavy shower yet.

thief · 17th January 2006, 18:58

post deleted. double post. thief has started a thread with the same post...
read all about it...
http://www.team-bhp.com/forum/car-en...eded-guys.html

10th January 2006, 16:41	#2792
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,285 Thanked: 9,457 Times	Nah only a rear deck. your exisiting fiber deck wont be able to support a 12" woofer comfortably. you'd need to replace it with one made from wood. MDF is a cheap form of wood.
	() Thanks

10th January 2006, 17:45	#2793
Sam Kapasi Distinguished - BHPian Join Date: Jul 2005 Location: Mumbai (but wat Posts: 7,000 Thanked: 2,438 Times View My Garage	You get these readymade trays, made of MDF, that will support your woofer. I think they cost about 700 rupees.
	() Thanks

10th January 2006, 18:06	#2794
paharino1 BHPian Join Date: Nov 2004 Location: Hyderabad, India Posts: 299 Thanked: 29 Times	ICE Trends in automobiles..for all the gurus & fans .. http://news.com.com/Carmakers+park+i...tag=html.alert
	() Thanks

11th January 2006, 18:27	#2795
amit1101 BHPian Join Date: Dec 2005 Location: faridabad Posts: 77 Thanked: 0 Times View My Garage	TELL ME WHY a HU 50pmpo4 , no amp, 300pmpo 60RMS pioneer at rear, pioneer 110Wpmpo in front door. The HU provides all the 4 speakers( 2 rear , 2 front) with same power all speakers have 4ohm inpedance HOW come the rear speakers sound loud u will say they are more powerfull 300pmpo well i'll say speakers is a passive eliment , and HU provides all speakers with same power, Then how come rear is louder?????? :-) May god rain upon you, A6000GTI if you ans this question :-) Last edited by amit1101 : 11th January 2006 at 18:28.*
	() Thanks

11th January 2006, 19:10	#2797
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,285 Thanked: 9,457 Times	also the rear speakers have a huge box (trunk) while the front speakers have a small door as a box.
	() Thanks

11th January 2006, 23:11	#2799
rsjaurr BHPian Join Date: Sep 2005 Location: Batala Posts: 777 Thanked: 28 Times	And probably sensitivity feature of spk also influence loudness as more sensitive one will be louder for given power as compared to other one with less sensivity.
	() Thanks

12th January 2006, 10:48	#2803
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,285 Thanked: 9,457 Times	sensitivity is measured in an assumed box volume. as you make the box smaller the sensitivity esp in the bass reduces. so the same speaker will sound less sensitive in a smaller box. if you drive then this is compensated by the fact that though the front speakers are usually producing fewer db per watt they are closer to you. i dont drive so i use a Senheisser 565 with my ipod. adequate for my in car back seat needs. I intend to upgrade to a good headpone amp soon one maybe build one into the rear arm rest or something like that when time permits.
	() Thanks

17th January 2006, 18:58	#2805
thief BANNED Join Date: Jun 2005 Location: MUMBAI Posts: 91 Thanked: 0 Times	help me post deleted. double post. thief has started a thread with the same post... read all about it... http://www.team-bhp.com/forum/car-en...eded-guys.html Last edited by navin : 17th January 2006 at 19:15.
	() Thanks