Radio Standard Audio
How do I know how many “Watts:” my factory installed radio has?
I purchased a 2007 Accord special edition (3rd level up but not the nice one) Standard Audio package 6 speaker 6 disc changer. I want to put in new speakers but want to make sure that the radio kicks off enough juice so that its worth it. Can anyone tell me what the specs are?.
What does the Watts mean?
From Honda it says 120 Watt system.
Does that mean since its 6 speakers its 120/6= 20 WAtts? isnt that alot?
The short answer is that you can’t tell in any meaningful way from the manufacturer’s information, and no one else will be providing that information (unless you get some load resistors, an oscilloscope and voltmeter and do your own testing).
When an amplifier manufacturer rates power output, they should be following a set of standards so you can compare the ratings between two amps: things like frequency range, load impedance and distortion ratings are variables that can change an amplifier’s tested output rating. You can’t compare two amplifiers very well unless they’re rated using similar parameters. Most reputable after-market audio companies will provide the power spec parameters, because independent reviewers will do the testing after the product is released anyway.
For a car manufacturer, the wattage rating is nothing more than a marketing tool–they’ll never provide more information than just a wattage number, and independent labs don’t bother doing testing on a product that comes with a vehicle. So the 120-watt rating from Honda is essentially meaningless.
As far as your Honda’s system goes, the six speakers include separate tweeters and midrange speakers in the doors. The two speakers share a single amp channel, so if you’re doing the math on the “120 watts”, divide it by four, not six; it’s really a 4-channel amp running six speakers. But the end result is still a pretty meaningless number.
An educated guess would be that the stock radio in your car is similar to most after-market head units in power output. In the past, an after-market radio could be expected to provide much more power than a stock radio, but that hasn’t really been true for several years. So the factory radio most likely produces around 15 watts per channel RMS, which is what a typical after-market head unit provides once you dig past the “max power” hype.
Anyway, you probably won’t be hurting anything by replacing the factory speakers with after-market upgrades. When you see a speaker power rating, it’s showing you a maximum power number that you can send to the speaker without blowing it. It’s not rating a minimum power or a recommended power. Most 100-watt car speakers will work perfectly well on factory radio outputs, and you aren’t going to do them any harm by trying them out. (Ignore anyone who tells you that you can blow any speaker by using it with too low power an amplifier; this is not true). Just do your purchasing from a store with a 30-day return policy; if you’re not happy with the sound of the speakers in your car, then return them. You’ll just be out the time or expense of installation.
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