lol...BUMP!!

Why? damn it! Why?

because we can :-)

i just had to chime in to remind the senior members here that i'm sure this site works like most others where the owner gets paid by advertisers based on how many hits he gets.

i can't imaginge you guys picking apart new members at every opportunity motivates them to come back unless they absolutely have to in desparation for info. meaning you are all taking $$$ out of Dan Tonks pockets.

Stealth,

Sorry, did I miss something? Who picked apart the newbie who revived this thread?

What your saying is real, but not an issue here, an not in the other thread you mentioned.

you dont think AG was treated rudely? why even tell him its annoying to bring up old threads... whats the big deal?? if you post here often then its pretty easy for you to see how old a thread is before you go into it, so if it annoys you so much then scroll down to the next thread. i'm sure if nothing else he probably fealt embarrased with the reaction/responses he recieved, which is why he reacted as most people would, with anger.

and refering to the other thread i linked... read it, the OP indicates early on he was treated poorly for posing the same question in another thread.

whatever, i'll stop being a forum vigilante now. these tights were getting itchy anyways, and i got soup on my cape at lunch.

Goodness, I've had my wrists slapped and I'd not even replied . . . until now of course.



Serious answer . . .

Generally high sensitivity/efficiency loudspeakers are usually, though not exclusively, the preserve of horn types. These were born of the need to produce a large sound from piddly valve amps which, way back in the years of the ark, were the norm.

Again it usual, though not exclusively so, to find them employing a single full range driver so, consequently, a crossover is not used. More details about this approach can be found here.

No, not until he stated....

"Instead of crying about how I wasted your time you should be grateful that I enlightened you and graced your site with my presence."

That was after Ernie pointed out his outdated reply, and Tom and TrunkSlammer made two comments not directed at him.

And then at that point he deserved all he got. Not to mention the thread had been answered properly and he simply repeated the correct answer and pasted in a chart from a manufacturer site.

I have to apologise Stealth, I thought you were refering to Deafears post. Not the AG post 6 odd years old.

Still agree with you that sometimes it does get rough in here, and newbies can be handled better in some situations.

I didn't really wanna know about how sensitive some speakers are and y. I thought it would be good to wake you guys up again?

I'll bite and actually give an answer.

If the speaker has a sensitivity of 101 db, a frequency is probably specified. It has been so long since this spec has been more than a yawn to me that I don't remember.

But let's say it's 101 dB, 1w, 1m @ 1kHz. First, plug up your ears with something at least as thick as overripe bananas before you test this.

The frequency response will be given as 1.8 Hz to 47.3 kHz +/- 17 dB, or something like that.

Maybe more like 20 Hz - 20 kHz +/- 3 dB. This spec includes the sum of what the box and the crossover and the speakers do with the voltages presented to them. One can presume that the +/- 3 dB figure uses 1 kHz as a reference, but it doesn't have to. If a speaker were dead flat (impossible) from 20 Hz to 20 kHz but had a rise of 6 dB at 1 kHz, and were specified with an efficiency of 101 dB at 1 kHz, well, that would mean that the speaker had an efficiency of 101 - 6 = 95 dB for its entire range except for that midrange bump. And dead flat with a 6 dB bump can be described as some level +/- 3 dB.


By making efficient woofers. Horns were developed to efficiently couple small high-frequency drivers to the air. If you had a tweeter with a 1" dome, that tweeter would put out more sound with a horn attached to it because the horn acts to make the transition much more efficient from a 1" circle of sound to a much larger area. In doing so, it makes the 1" driver sound like a horn. The simplest analog of this is a human voice shouting versus a human voice with a megaphone. The megaphone makes the voice louder but it does not sound the same.

Not in the frequencies that they are actually passing. A 1 mH coil offers an inductive reactance of about 0.12 ohms at 20 Hz, and that is hardly going to lower the volume of the woofer there. But at 1000 Hz, that coil offers about 6.3 ohms of inductive reactance, which will definitely lower the woofer output at that frequency...which should be handled by a midrange anyway, so it's not a frequency where the efficiency out of the woofer is paramount.

One of the most clever crossover designs I ever saw corrected for a sloped midrange response by being designed for slightly different frequency response than was actually desired; this crossover corrected and flattened the response curve of the midrange in the system. So the crossover introduced losses and created a flat curve in the process.

Efficiency isn't everything.

First I would like to say HI to all of my friends at remotecentral.com

I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve.

An immortal line by TOLKIEN.


Aah..... NO

Remember back in college when you had to read all of those books that were filled with pages and pages and pages of wordy bullshit? Yeah that was the responce given by Danny Owens. Danny Owens spent so much time trying to sound smart that he did not realize that he was being confusing. In fact I did say that he had the most accurate info, however, it was confusing to 99.9% of people who may wonder what speaker sensitivity is and made the mistake of going to this site seeking an answer to or further knowledge about to a good question. Danny Owens Wrote a confusing book. I wrote the cliff notes that people Actually read.

Spiky
Founding Member:

"Hey, that's twice that Audio God has come back as a different person just to yell at us. Neato!"

Just for the record I did not come back as a different person You guys are lame.

Why post a comment as a different person when Audio God is a Legend among you swine.

sad

Based on the number of posts by Audio God, and the content, I'd say Audio God is the absolutely laziest insufferable narcissist I've ever run across. Being in audio, and audio/video, since 1970 gives me a good list to compare against. I worked at Marantz when the Tushinksy brothers ran it. I've seen a salesman who confessed that he would not be satisfied with his life until he saw his name in movie credits, as writer and director...poor guy was named Mike Myers, and no, it was not the one you know.... I've seen sales types with neck problems from holding their heads back so they could look down their nose at me (I'm 6'4" tall). And each one of these would put more energy into their myth than seven posts in thirty months, two of them just yesterday.

Yeah, smokinghot, it's sad, but thank goodness he's not also enthusiastic!