Sunday, February 2, 2014

car speakers(..hz..)?




oz


if an amp is 20-20,000Hz
and speakers are 25-32,000
what happens with those 20,000-32,000Hz
do they not get played
can any one tell me what to look for in speakers specs.
things like db?
and what i should look for in an amp's specs.
besides watts
thanx all info helps.



Answer
correct, the 20,000 and higher don't get played. In truth your ear can't hear them anyway. A healthy young person might be able to hear up to 18khz, but probably only in a laboratory audio test.
The reason speakers are spec'd to 32khz is because it's only 1 octave above 16khz, which is audible. so a sepaker spec'd to 32k shouldn't distort 16khz.
As for what to look for, it is a safe bet to keep the speakers 'rated' power (not max power) equal to the max output of the amplifier. People often run amps into distortion, even without noticing. By keeping the rated power that high the speakers should not blow out.
The better way to judge the quality of a speaker is the sensativity rating. this equates to how much volume you get from the power put into the speaker. a low number means a stiff unresponsive speaker, which usualy means poor sound quality.
if the manufacturer puts the EQ curve on the box this indicates the volume of sound based on the frequecy for the same power input. ideally you want flat accross the spectrum. But more important is the low end roll off. If you aren't running a subwoofer, you don't want speakers with a high freq rolloff, or you'll miss that bass.

Car specs websites?




Tharun Che


Is there a website where I can find different car specs and compare side to side without the trouble of typing it into google?
including older models



Answer
www.vehix.com You can compare vehicles up to 10 years old side by sied and the site will give you every bit of info you can think of.




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Does Yahoo Finance provide this service?




Grasshoppe


We are purchasing a car from Spain. The person has said to us that we pay the money to Yahoo finance and then when we recieve the car Yahoo then send the money to the supplier, if we are not happy with the condition of the car then yahoo will send our money back and the car is returned. I am worried about it being a scam especially as the car is being sold very cheap. Does Yahoo Finance provide this service?


Answer
It's a SCAM. Yahoo Finance reports on Financial news, stock markets, etc. They do NOT handle money. There is NO car, just a picture of a car stolen off another website
Here's the Yahoo Finance homepage http://uk.finance.yahoo.com/
There is absolutely NOTHING about payments, because Yahoo offers NO such service

And NEVER buy a car from Spain for any reason - read this. People in debt sell off their cars to naive foreigners all the time hoping they don't understand Spanish law. Read the big warning in red as this scam is becoming very common with 20% unemployment and rising debt in Spain http://www.idealspain.com/pages/information/buycar.asp

If you want to prove this is a scam, write back to say you just got a cheap Easyjet flight and are flying down, will pick up the car in person, pay cash, and take it home on the ferry. It will be interesting to see what sort of excuses they come up with why that isn't possible. A real seller would be happy to get cash in hand, a scammer has excuses like they are out of town, or the car is already crated at the shipper or some other excuse

new flying car?????????????




music&dram


i saw something about a flying car on yahoo news. it says that the flying car will be released to consumers, and that you can "fly or drive home by the end of the day". i dont get this. how can you just fly home? will there be traffic lights in the sky? can you just fly anyway you want, or will there be roads??? what about accidents?


Answer
I can't wait to see the first flying car crash because the idiot behind the stick was talking/texting on his/her cell phone. "Like... OMG... this flying car is so cool... I don't even have to put up with traffic anymore and the sky is so clear I can text and talk and... AHHHHHHHHH!" {splat}




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