My introduction.

[Jimmy Hardin]

Hello. I have posted on here before and I have a post on here right now called Matching Amps with speakers.and i have never really made a introduction on here before. I really like your forum and everyone here is really a friendly person and The kind of people i think that i could get along with. so here is a little bit about my background with sound. I have been in sound for about the past 7 or 8 years. 5 of those years have been in work. I don't know EVERYTHING there is to know about sound , but enough that i can pull a job off and leave the customer with satisfactory comments. I am still learning about things and usually learn something about every time i go out on a job, I guess you would consider me a newbie. but i am willing to learn things, a lot of the tech words i am still trying to learn about , for example Excursion, Buss, etc. As i said before i am a newbie. I have learned a lot in the short time that i have been in sound, but could stand to learn more. I don't really know a lot about DB's it's kinda confusing to me. I never have gotten into sound that much. But i am willing to learn so just bare with me. LOL I have been in music on the playing end of things for the past 40 years. and just got interested in sound and have a desire for it , Thanks to GOD, for giving me the desire for it. so thats my introduction to the forum , Hope all of this makes sense.

 

[Ivan Beaver]

Re: My introduction.

The best way to eat an elephant is one bite at a time.

So ask questions about ONE thing-not a number of different things in the same topic.

Many people are here to help-but not to write a book about a single post that contains several different aspects.

Just as an example you listed 3 completely different topics in your post-that are about 3 completely different areas (speakers-consoles-basic levels/math).

The one thing you will (or should) quickly realize is that the more you know-the more you realize how LITTLE you really understand or know.

The hole just keeps getting deeper. There are a lot of exceptions and details to any topic.

Trust me-it just gets more complicated as you go-IF you are willing to want to know the TRUTH.

If all you want is general "misconceptions" and poor guidance-then there is plenty of that on other forums. While this forum may be a bit more technical-there is much less BS and if somebody is wrong-they are quickly corrected. (guilty as charged-------------------)

Enjoy your journey-but do not ever expect to "arrive". You just closer and closer.

Just like the old joke " A mathematician and a engineer were both asked asked the same question. "If you were 10' away from a beautiful woman and every 10 seconds you half the distance-how long before you make contact with her."?

The mathematician said it was impossible-because you could never actually get the distance to be zero.

The engineer said "not very long before I get close enough for the intended purpose"------------

Both are correct-it just depends on what "end result" you are looking for

 

[Art Welter]

Re: My introduction.

I guess you would consider me a newbie. but i am willing to learn things, a lot of the tech words i am still trying to learn about , for example Excursion, Buss, etc.

Buss is an archaic term used as a synonym for a kiss.
Bus is a distinct set of conductors carrying data and control signals within a audio console or computer system, to which pieces of equipment may be connected in parallel.
Excursion is distance traveled, as in a sub speaker has "long excursion", the cone can move back and forth a (relatively) long distance. Excursion can be seen on loudspeaker driver specifications, and is represented by the term Xmax, which is the one way linear excursion of the driver. Linear means like a line, below Xmax the driver performs well, above Xmax, it progressively performs worse (becomes non-linear), both in terms of more distortion and less output per given power.

"Long excursion" has become a fairly meaningless term, as there are still manufacturers using drivers with only 5 mm Xmax calling them "Long excursion", while drivers with as much as 30mm Xmax (around 2.5 inches peak to peak) are available.

A driver with double the Xmax, given enough power, can put out 6 dB more SPL (sound pressure level) than a driver with half the Xmax.
At 1000 Hz a 10 dB level increase is required to sound twice as loud, but down at 20 Hz it only takes a 5 dB increase to sound twice as loud.

A 3 dB increase in level requires double the power (from a speaker operating in it's linear range) 10 dB increase requires 10 times the power.
Sound drops at 6 dB per doubling of distance outdoors, and more or less indoors depending on the room's acoustical properties and how many meat bags are between the source and your ear.

Have fun learning, read all of the posts by Ivan and me, and in two years when you have finished that, tell us how it's going ;^)