J,
The frequency response was made using an old pioneer amp to amplify the clio signal. I am certain it was NOT at 1 Watt. Even if I bothered to look at the amp, without a multimeter or some other external measuring device, it would have been impossible to tell the actual output of the amp.
The fact that the response fits the theoretical response fairly well makes me happy. Again, my WO32 is a project for a class, so showing that my actual results are very close to my theoretical expected response is encouraging, and likely to get me a good grade.
If I ever get a chance to use the CLIOwin software again (doubtful) I will attempt to measure the efficiency.
Of note, I have been running the WO32 in the trunk of my civic for a couple weeks now (damn parts express backorder). I looked up the specs on my ancient alpine I have running the sub. Its rated at 80 Watts RMS x 1 channel @4 omhs, which is how I have the subs wired. All I can say is that with about ~50-70 Watts, the WO32 makes more sound than I can handle comfortably.
Before, I was running an older MTX 10" off the same amp. All things being equal, the WO32 is MUCH LOUDER! To balance the sound in the car, I have to attenuate the signal to the WO32 ALOT! I know this probably isn't what you were looking for in terms of technical data, but I did find this:
"...Horn systems are approx 20% efficient; cone speakers are approx 2% efficient. ...." found at:
http://www.lenardaudio.com/education/07_horns.htmlThe quote is from the second sentence on the page. For all the other acoustics n00bs like me, you need to double the input power to achieve a 3dB increase in output. If the above statement is true, any generic "cone speaker" system would require doubling the power 3.322 times to achieve the same output as a comparable "horn system". ((2%^4.322)=~20%)
At first this seems a little hokey, but after having some quality time with the WO32, I don't think it's far off. I'd have to spend more time with some test equipment to verify this. (Dammit, now it makes me want to!).
In any case, I hope to eventually find the true efficiency of the WO32. Maybe someone else on this forum will get a wild hair up their butt and actually do the tests....maybe not, who knows.
My parts express amp is due tomorrow, so the WO32 will be moving into my tiny student apartment, LOL. I'm going to try not to piss off the neighbors too much
P.S. At first our instructor for the acoustics class said "Don't worry about doing the HW, I just want you to understand the material and be comfortable with it." Predictably, no one turned in ANY of the HW. So, in one of the final lectures of the quarter, he says "I am requiring the HW be completed to recieve a passing grade in the class." You might be able to imagine what I've been up to for the last few days, LOL.
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WO32 Frequency Response (Read 15246 times)
