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Old 15th September 2005, 09:49   #31
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Yeah ISRO. That place where they launch PSLVs from.

Maybe you have not heard of the clothier term "Madras Checks"? Now that Madras is Chennai we'd have to call them Chennai Checks. Ok Ok Ok Madras Checks and Nehru Collars were fads of the 60s (You heard of John Lennon haven't you).
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Old 15th September 2005, 11:14   #32
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It's nice to see Navin acting his age now.
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Old 15th September 2005, 11:23   #33
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yeah once in a while i go nuts and act 20!
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Old 15th September 2005, 11:48   #34
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Yup.. Chennai checks wud be it.... Though not many now days wear checks as much, more into solids and stuff... i guess I was yound when the term was coined...?? maybe ppl wore a lotta checked shirts back then.... I love solids....
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Old 15th September 2005, 17:09   #35
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Hi Gunbir

Today i went to sony's exclusive showroom ans asked for prices of HU and Amplifiers.

5510 costs 8990 rs and 504 amp costs 5990 rs.
U have quoted very less.
Cud u plz tell me ur source?

Thanx
Ravinder
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Old 15th September 2005, 17:56   #36
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Quote:
Originally Posted by rsjaurr
Hi Gunbir

Today i went to sony's exclusive showroom ans asked for prices of HU and Amplifiers.

5510 costs 8990 rs and 504 amp costs 5990 rs.
U have quoted very less.
Cud u plz tell me ur source?

Thanx
Ravinder
Ravi, the price quoted for the Sony 504z amp is right... but find out from people in this post, who belong to your city, and get hold of some contacts, who could help get you a discount. There have been people who've reported buying the 504z amp for 5300-5500 post discount, w b&w...
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Old 15th September 2005, 18:05   #37
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Quote:
Originally Posted by rsjaurr
Hi Gunbir

Today i went to sony's exclusive showroom ans asked for prices of HU and Amplifiers.

5510 costs 8990 rs and 504 amp costs 5990 rs.
U have quoted very less.
Cud u plz tell me ur source?

Thanx
Ravinder
The prices you are qouting are with bill and warranty. The prices that you might have read from somewhere are without bill and warranty. In Gray market, the Sony 504 amplifier costs 3.9k and the Sony 5510 cost around 6k.
Regarding the official price of 8990 and 5990, you can get a 10% discount of these price if you do decide to buy them with B&W, you would have to bargain!
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Old 16th September 2005, 10:11   #38
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EVEN SONY GUYS R READY TO GIVE ME 10% DISCOUNT BUT MOTHING MORE.sO THE PRICE WILL BE 5400 AFTER DISCOUNT.
I am from small city and i dont think if anyone from here is member of this forum except me.

But can u guys tell me how reliable gray market is? And r these spk [as suggested by navin] available in India as well and if yes,how much they will cost me more than US price? I HAVE KEEP THAT OPTION OPEN AS WELL BCOZ MY RELATIVE MAY NOT COME OR MAY NOT BRING THESE ITEMS.

How u guys rate sony's 504 amp?Does it have enough power to feed 2 front components spk and 2 rear spk?

Thanx
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Old 18th September 2005, 17:21   #39
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Hi Guys

If i buy a amplifier whuich has 30*4 output,will it be able to power [enough] 2 coaxial and 2 components spk which may be of 50-100 w each? Wont it be that spk r not getting enough power from amplifier which may blow the spk?

Fow Gunbir and Sam--
If u guys r in business how can i contact u if i decide to buy from any of u and do u have ur dealer in amritsar,jallandhar or lughiana?

Thanx in advance
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Old 18th September 2005, 17:46   #40
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Quote:
Originally Posted by rsjaurr
Hi Guys

If i buy a amplifier whuich has 30*4 output,will it be able to power [enough] 2 coaxial and 2 components spk which may be of 50-100 w each? Wont it be that spk r not getting enough power from amplifier which may blow the spk?

Fow Gunbir and Sam--
If u guys r in business how can i contact u if i decide to buy from any of u and do u have ur dealer in amritsar,jallandhar or lughiana?

Thanx in advance
Hi!

Call Balmeet Singh: 09350041848

He will help you locate someone near you
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Old 18th September 2005, 22:11   #41
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Quote:
Originally Posted by rsjaurr
Hi Guys

If i buy a amplifier whuich has 30*4 output,will it be able to power [enough] 2 coaxial and 2 components
dude if that amp can put out 30W rms (4 ohms, 20-20k, etc.,...) what i mean a good clean 30W rms and if your speakers are half way decent it will be so loud you wont hear your horn. so chill. the difference between a 30 and 60W amp is barely perceptable.
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Old 19th September 2005, 11:38   #42
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Quote:
Originally Posted by rsjaurr
Hi Guys

If i buy a amplifier whuich has 30*4 output,will it be able to power [enough] 2 coaxial and 2 components spk which may be of 50-100 w each? Wont it be that spk r not getting enough power from amplifier which may blow the spk?
Your speakers will sound just fine if your power them from a 30rms x 4 output of an amplifier. The amplifier will produce clean 30 watts of power. But its not the same with a HU, which says 30 x 4. Power the speakers from a HU and you will start getting distortion from the speakers as you turn up the volume.

Dont worry, the amp will not blow the speaker for want of less power!
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Old 19th September 2005, 11:44   #43
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Navin, difference between 30W or 60W is 3dB which is noticable.

Using high power amplifier is not bout loudness its about having a more Headroom the system will play cleaner with high power amp running at low distortion levels.
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Old 19th September 2005, 12:20   #44
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i said BARELY perceptable. 30 to 60W is a 3db difference. db is the symbol for decibel. the definition of decibel is:
Decibel: A measure of loudness (abbr: dB). The decibel scale is such that 3dB represents a doubling of amplifier power from say 50W to 100W), while 10dB represents a doubling of perceived loudness.

so one need a 300W amplifer for a perceived doubling of loudness when compared to a 30W amp. Human hearing though quite accurate is non-linear.

and I quote
"...But as a 100W amplifier is actually only slightly louder than a 50W amplifier, the 50W model's dBW rating of 17dBW would more correctly indicate the subjective difference..."
from page 2 of this article.
http://www.stereophile.com/asweseeit/489/index.html

as far as headroom goes. headroom (assumed to be dynamic) is primarily a function of the instantaneous power supplied by a power amp. a logical assumtion is that we are comparing 30W and 60W amplifers with the same desing and headroom in db. so if you are comparing a 30W amp with 3db of dynamic headroom to a 60W amp with 3db of dynamic headroom you are still talking of essentall a 3db difference between the 2 amplfiers. givne that 10db increase is required to percieve a doubling of loudness 3db is a barely perceptable power difference.

BTW amplifier power is a much abused term.

David Cheever's paper is a good read.
http://w3.mit.edu/cheever/www/cheever_thesis.pdf

Last edited by navin : 19th September 2005 at 12:27.
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Old 19th September 2005, 13:05   #45
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Navin your figures are from the home audio world. Where the listener is sitting far away (comparitively) from speakers and speakers have more volume to fill.

In mobile audio things are different, where the listener is sitting within 1 meter of the speakers. And speakers have got far less volume to fill as compared to a "room". Also, the car acts as an enclosure and with the windows rolled up, you are literally sitting in the enclosure.

As you know the percieved loudness also depends upon distance and volume.

The car environment has lot of reflecting surfaces and offer far more less decay as compared to home environment. So the loudness factor also differs. And you can notice the difference in 30W and 60W amplifier.
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