So.... why do we need those thick wires?? - Team-BHP

Sam Kapasi · 13th July 2006, 00:17

Thanks to Tobias Runge for provoiding the info and pics to Sam and TBHP's low_bass_makker for reducing the size so that it does not require horizontal scrolling on most computers. (edited by Navin on July 14th 2006).

kb100 · 13th July 2006, 00:28

SAm... Will help if you could also mention the appropriate GUAGE in lieu of the mmsq figure

low_bass_makker · 13th July 2006, 00:50

some thing from my side
http://www.the12volt.com/wiring/recwirsz.asp

and i will not at all comment on how to calculate the power required by a amp this time now......lol

whatcanthisbe · 13th July 2006, 18:22

thanks man this is a good post i think this should be a
S T I C K Y

navin · 13th July 2006, 22:25

Can someone edit the pics above to fit on my 12" laptop screen.

low_bass_makker · 13th July 2006, 22:45

here we go man...
LBM edited the pics above. I am leaving this post as an acknowledgement for his efforts but move his pics to Sam's post (post 1) above. - Navin, July 14, 2006.

kb100 · 13th July 2006, 22:49

............................

LBM

navin · 14th July 2006, 09:23

I'm gonna edit Sam's post with LBM new pics and edit LBM's post accordingly then make this a sticky.

speedzak · 14th July 2006, 13:54

Great effort from Sam (& LBM) once again. Should be made a sticky as this information will help everybody who needs to do some serious install.

Thanx NavinJi.

low_bass_makker · 14th July 2006, 14:02

navin ji please edit my 3rd post as i have made a new chart of the awg to mm sizes.....
...chart moved to post 3 as requested - Navin

kb100 · 14th July 2006, 23:07

http://www.the12volt.com/wiring/recwirsz.asp

Excellent one!

navin · 1st August 2006, 11:33

Since we are talking about power ratings here I'll add link that explains what amplifer ratings mean here.
http://www.meyersound.com/support/papers/amp_power.htm

low_bass_makker · 18th August 2006, 17:58

something related to wire .........

http://www.roger-russell.com/wire/wire.htm

kURETI · 18th August 2006, 18:34

A modern 12V amplifier is a current hungry beast. Resistance only makes it mad. Feed it with oversized power cables and you will be rewarded with sonic purity.

santosh.s · 18th August 2006, 20:14

While "power" cable needs to be 20 times thicker in car as compared to home audio systems with similar power ratings, the "speaker" cable requirement should not change much. Because for power supply the voltage is reducing by 20 times, but for speakers both home and car speakers commonly have similar nominal impedance ratings. The most common range is 2-8 ohm. What I am trying to say is that to produce a given amount of power from a given speaker, actual voltage/current requirement (which is fed by AMP to speaker) is going to be same, irrespective of whether the AMP is powered by 12V or 220V.

13th July 2006, 00:17	#1 (permalink)
Sam Kapasi Distinguished - BHPian Join Date: Jul 2005 Location: Mumbai (but watch this space) Posts: 6,446 View My Garage	So.... why do we need those thick wires?? Thanks to Tobias Runge for provoiding the info and pics to Sam and TBHP's low_bass_makker for reducing the size so that it does not require horizontal scrolling on most computers. (edited by Navin on July 14th 2006). __________________ Live the YetiLife® Ohne Dich ist alles doof. Last edited by navin : 14th July 2006 at 09:27.

13th July 2006, 00:28	#2 (permalink)
kb100 Senior - BHPian Join Date: Feb 2006 Location: Exploring ... Now in Kottayam Posts: 1,266	SAm... Will help if you could also mention the appropriate GUAGE in lieu of the mmsq figure __________________ *A signature always reveals a man's character - and sometimes even his name* - **Evan Esar ... * JUST DID IT !!! *** Last edited by kb100 : 13th July 2006 at 00:39.

13th July 2006, 00:50	#3 (permalink)
low_bass_makker Senior - BHPian Join Date: Mar 2006 Location: Faridabad Posts: 5,634 View My Garage	some thing from my side http://www.the12volt.com/wiring/recwirsz.asp and i will not at all comment on how to calculate the power required by a amp this time now......lol __________________ “First they ignore you. Then they laugh at you. Then they fight you. Then you win” Last edited by navin : 14th July 2006 at 16:45.

13th July 2006, 22:25	#5 (permalink)
navin Team-BHP Moderator Join Date: Mar 2004 Location: mumbai Posts: 11,160	Can someone edit the pics above to fit on my 12" laptop screen. __________________ Scixelsyd Etinu

13th July 2006, 22:45	#6 (permalink)
low_bass_makker Senior - BHPian Join Date: Mar 2006 Location: Faridabad Posts: 5,634 View My Garage	here we go man... LBM edited the pics above. I am leaving this post as an acknowledgement for his efforts but move his pics to Sam's post (post 1) above. - Navin, July 14, 2006. __________________ “First they ignore you. Then they laugh at you. Then they fight you. Then you win” Last edited by navin : 14th July 2006 at 09:27.

13th July 2006, 18:22	#4 (permalink)
whatcanthisbe BHPian Join Date: Mar 2006 Location: delhi Posts: 433 Infractions: 0/2 (8)	thanks man this is a good post i think this should be a S T I C K Y

13th July 2006, 22:49	#7 (permalink)
kb100 Senior - BHPian Join Date: Feb 2006 Location: Exploring ... Now in Kottayam Posts: 1,266	............................ LBM __________________ *A signature always reveals a man's character - and sometimes even his name* - **Evan Esar ... * JUST DID IT !!! ***

14th July 2006, 09:23	#8 (permalink)
navin Team-BHP Moderator Join Date: Mar 2004 Location: mumbai Posts: 11,160	I'm gonna edit Sam's post with LBM new pics and edit LBM's post accordingly then make this a sticky. __________________ Scixelsyd Etinu

14th July 2006, 13:54	#9 (permalink)
speedzak Senior - BHPian Join Date: Mar 2006 Location: AbuDhabi. Don't really misss Cochin. Posts: 3,128 View My Garage	Great effort from Sam (& LBM) once again. Should be made a sticky as this information will help everybody who needs to do some serious install. Thanx NavinJi. __________________ "Where there are many; somebody will always be offended." (African Proverb)

14th July 2006, 14:02	#10 (permalink)
low_bass_makker Senior - BHPian Join Date: Mar 2006 Location: Faridabad Posts: 5,634 View My Garage	navin ji please edit my 3rd post as i have made a new chart of the awg to mm sizes..... ...chart moved to post 3 as requested - Navin __________________ “First they ignore you. Then they laugh at you. Then they fight you. Then you win” Last edited by navin : 14th July 2006 at 16:46.

14th July 2006, 23:07	#11 (permalink)
kb100 Senior - BHPian Join Date: Feb 2006 Location: Exploring ... Now in Kottayam Posts: 1,266	http://www.the12volt.com/wiring/recwirsz.asp Excellent one! __________________ *A signature always reveals a man's character - and sometimes even his name* - **Evan Esar ... * JUST DID IT !!! *** Last edited by kb100 : 14th July 2006 at 23:10.

1st August 2006, 11:33	#12 (permalink)
navin Team-BHP Moderator Join Date: Mar 2004 Location: mumbai Posts: 11,160	Since we are talking about power ratings here I'll add link that explains what amplifer ratings mean here. http://www.meyersound.com/support/papers/amp_power.htm __________________ Scixelsyd Etinu

18th August 2006, 17:58	#13 (permalink)
low_bass_makker Senior - BHPian Join Date: Mar 2006 Location: Faridabad Posts: 5,634 View My Garage	something related to wire ......... http://www.roger-russell.com/wire/wire.htm

18th August 2006, 18:34	#14 (permalink)
kURETI BHPian Join Date: Apr 2006 Location: Bangalore Posts: 75	A modern 12V amplifier is a current hungry beast. Resistance only makes it mad. Feed it with oversized power cables and you will be rewarded with sonic purity. __________________ Venu We Make Driving A Pleasure

18th August 2006, 20:14	#15 (permalink)
santosh.s BHPian Join Date: Aug 2005 Location: Bangalore Posts: 576 View My Garage	While "power" cable needs to be 20 times thicker in car as compared to home audio systems with similar power ratings, the "speaker" cable requirement should not change much. Because for power supply the voltage is reducing by 20 times, but for speakers both home and car speakers commonly have similar nominal impedance ratings. The most common range is 2-8 ohm. What I am trying to say is that to produce a given amount of power from a given speaker, actual voltage/current requirement (which is fed by AMP to speaker) is going to be same, irrespective of whether the AMP is powered by 12V or 220V.

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