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Urban ICE myths

Hyun

By Hyun,
in In-Car-Entertainment

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Hyun

Hyun

Neutral Newbie

lai lai, everyone contribute ....

 

this is my favourite.

 

 

YOUR AMP GOT NOT ENOUGH POWER / LAT / JUICE

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Hyun

Hyun

Neutral Newbie
  • Author

your tweeter need ONE HUNDRED WATTS amp to drive. (i.e. will sound different than a 10W amp)

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Hyun

Hyun

Neutral Newbie
  • Author

i learn from PAP one -

please exprain the fact. sorry not enough.

 

i believe what i dare to post, i dare to defend. so let me exprain before you do.

 

are all amps the same, having the same output? NO.

 

amps can differ in their output by their frequency response. YES, all of you have been staring at speaker frequency responses like it's the SGX index, and no, it's not gonna roll off anytime soon, at least not until i sell everything .....

 

AMPS too, have a response. published sometimes like +/- 2dB. as of yet, i have not personally seen a published amp response curve. this you have to plot urself, if u are THAT free ......

 

so can one amp sound different, such that u hear the other amp suits your speaker better? yes. if let's say, ur speaker peaks at 8khz, and the amp dips at 8khz, it "matches" and smoothens out the response. or if ur cabin acoustic creates a standing wave at say 8khz, causing an acoustic peak, anything that dips there makes u feel better.

 

should a 100W amp playing at 100W give the same frequency response as the same amp playing at 1W? it SHOULD be very similar. it is, after all, the same amp. is the "distortion ceiling/threshold/reserve" of a 100W amp playing at 1W significant? i have not tested myself, but i read from reports that such levels of 1% or less total harmonic distortion is undetectable. u'd fare better trying to detect your 8khz peak.

 

so a 100W amp, playing a nice freq response, at power output of 1W, would it be the same as a 1W amp with the SAME FREQ RESPONSE, playing at 1W? likely to be, in my little fantasy world.

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Hyun

Hyun

Neutral Newbie
  • Author

> dabbling with ICE is poisonuous and could burn a big hole in your pocket..

 

somehow, i resisted the urban myths. i also resisted buying concert tickets, going to live jazz pubs, buying CDs .... i must say i don't regret all that. i'm not saying anyone should follow, but it did save me money.

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Vidz

Vidz

6th Gear

depends on how you look at it lah...

 

1. Losses. from amp>crossover>speakers with wires, etc... there will be losses and resistances, so 100W at amp does not equal to 100W at the speakers. You need bigger amp to overcome.

 

2. Distortions. you dont max out your amp at 100%, clippings and distortions will happen at the limits of the amp.

 

3. Heat. the fins and fans on the amps are not for garang show. at same output, some are cool, some are like BBQ pit.

 

4. all the above constitute the life span of the amp also.

 

that all i can think of now... Cheers angel.gif

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Kermit

Kermit

1st Gear
(edited)

emm...remove your amps, drive your speakers with HU onboard amp...good....

 

I totally regret spending so much money buying all the powerful amps...they don't sound any different at all...same amount of energy, same transient responses, same dynamism....&^%$#@

 

Oh, anybody want my stuff? I wanna throw away....Hyun, u not interested hor?

Edited by Kermit
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Hyun

Hyun

Neutral Newbie
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> I totally regret spending so much money buying all the powerful amps...they don't sound any different at all...same amount of energy, same transient responses, same dynamism....&^%$#@

 

Another factor i did not mention yet - the popular "tube" effect of tube distortion and roll off. There are these various factors. I do not say that they don't exist. I was only referring to absolute POWER OUTPUT - that a 100W amp needs to be used to drive your tweeters because a 10W GOOD amp has NOT ENOUGH POWER / JUICE / LAT / DELETE WHERE INAPPLICABLE.

 

the selling point was the POWER OUTPUT, and not other "features". the MYTH here, is the claim by salespeople, that what's going to improve the sound is the rated wattage.

 

re: amp losses

compared to speaker impedance of 4ohms, 8ohms etc, the total resistance from amp to speaker is really small. hardly even reducing the output by 1dB.

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Kermit

Kermit

1st Gear

What is 10W good amp huh? I want to buy to replace my miserable 75W x 4 Tru Tech amp leh...I think it's called bullet series one....

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Hyun

Hyun

Neutral Newbie
  • Author

actually the situation i came across was more like a 2 x 40W was said to be insufficient, and the recommendation was for something like 2 x 150W.

 

hope u understand, the point was about wattage, not transients etc. and that 40W amp was probably being used at no more than 10W, and was a good brand, but was commented to be "not enough power".

 

by the way, since u mentioned transients, i would like to learn about it. i wonder if at our next opportunity, could you show me an example of a nice transient? thanks!

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Kermit

Kermit

1st Gear

Get yourself a COPY of chesky demonstration CD. You can learn everything there. I cannot show you, cos my ICE sucks....

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Hyun

Hyun

Neutral Newbie
  • Author

don't worry, i'm used to this response. thanks for sharing anyway.

 

what's the next most popular myth?

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