Originally posted by: EternalOne
You never know how it will sound just by numbers.
This I have to disagree with. Any acoustic engineer can look at the numbers and know exactly how it will sound, and perform. That's what the numbers are for, its not something they made up.
Point taken, and numbers tell exactly what the audio device can do, and only if the numbers are true, but the one were helping to understand car audio is not an acoustic engineer. I will always keep it sorta simple as far as how much audio expertise is known about the one in question. Rydwy already knows about good brands, so my next example is not for him, but for hundreds of others out there who are mislead by numbers.
An example im faced with constantly from those who just go by numbers and dont know too much about brands, quality, or performance. Say some one wants to go strictly by the numbers. Say they have a 800 watt Kicker XPL 15" in a 3 cuft enclosure. Then they know they need to power the sub to get a desired amount of sub-bass needed to get its full potential. So now they are looking at a amp from an unknown brand (or lets say a Formula) which has a power rating of 1000 watts. This amp says all its capabilities on the side of the box. Its flashy, lots of chrome, has a bunch of features, but its cheap, say 200$ new. Now they know a 1000 watt amp will power the 15" 800 watt sub, but to what clarity and performance. Will the amp product 1000 watts of distortion or clarity with a wide range of frequencies? Will it overheat constantly? Will it be just a peice of junk? Now some of us know how much difference a rated amp of 1000 watts from a high end brand, say JL, will perform over a lesser brand that has no internals, small capacitors, no real meat to it. True those numbers from the cheap brand may be there to fool you into buying their product, but none the less its on the product, consumers see the numbers, and buy into it. This huge consumer magnet is posted all over JL's advertising about true ratings. So just from reading stat's on a product can you not know about the quality. Quality is one key, not the key, but it helps.