Hello Sander!

It seems like you've designed a great loudspeaker, and I'm certain I will follow your guide as soon as I understand what the schematic diagrams mean and what all the different variables you are talking about mean - my point being that despite being accurate and going from start to end, I miss the basic theory... Perhaps you could do a separate tutotial about what all the fancy words mean and I could read that? (I doubt I'm alone in thinking this, but perhaps I am...)

Alright, most of it is tech-speak really, and you don't need to be able to understand every word in order to be able to build these speakers. But if you can give me some pointers I'd be happy to explain further.

Regards,

Your not alone Henke

Im a home theater enthusiast, but have never develled into the tech of building my own speakers.

I follow the basic ideas, but am lost in the analysis and software Sander used.

Until i can either make the time to learn about all that, or have some one explain it all to me, i think ill be forced to spend more money on quality speakers instead.

Im with you there Henry X, I've constructed Car Audio Systems (a little). I also enjoy Home Theater sound too, but I dont think I would brave trying to make a speaker like that. Id F' something up for sure

Hello Sander and thanks for your reply.

I'll just fire away then ...
What is...
- a response curve?
- a filter curve?
- the breakup resonance peak? Where the loudspeaker starts to resonate and produce a sound of its own resonating material?
- a two way system?
- tweeter - is it a 50-20k Hz loudspeaker whilst a woofer is ~0-100Hz? If so, then what's a tweeter-woofer?
- the bass-reflex port on the enclosure?

Why is the sound axis important when designing a centre "tweeter-woofer", and why don't you call them loudspeakers instead of tweeter woofers?

Perhaps you could explain briefly what an off-axis reproduction is?

Perhaps the answers to the other questions already has clairyfied what this sentance means:
"The cone breakup frequency is high, around 8.5kHz, which means it won’t be much of problem if I filter at a crossover frequency of about 2.5kHz.", otherwhise...?

Something I've always asked myself (and a couple of physics teachers) is why you have negative values for dB... Obviously none of the teachers have been able to tell me, so perhaps you could?

What does "and hence the edges of the holes should be <i>routed with a rounding bit</i> (to minimize chuffing noise or reflections)" mean?

What are the Cs and Ls in the circuit diagram on page four? Page four overall, is the page where the concepts are on such a high level that I don't understand them. (age: 17...)

Then the next page is also greek for me, so here's where I'd like not only to read that "this and that is very good" or "the response curve looks ...", but also an explaination to why this is better or worse than any other scenario...

Hi again

I know there are a lot of questions, but I'd really appreciate if someone answered them because I am in fact interested; the answers wouldn't be wasted if that is what you think.

(edit:removed signature)

I started typing up a reply last week but got sidetracked, let me put it on the to-do list for next week.

Regards,

How about this week ?

LO LOL haha !
Ive Built speakers but all were Bursted because i used the CHines Magnet ahhhhhhhhhh
But now i m using Edifier 15USD SubWoofers they Rocks but not as SIlverado

This week??

This week?

Week?

Lolz This Week PLEEEEEEEEEEEEZ

Nope :p, not yet.

You need to put those coils at right angles on the crossover board so they're not coupling. As it is, you've got a transformer.

Nah, not a problem with this crossover. With the kind of power levels we're using here, and the fact that these coils do not have a iron-powder or ferrite core, this is not a concern at all.

Best regards,

Sander,

if you don't want to answer the questions or feel that you are insecure with the answers, that's OK with me if you just say you don't want to answer them. But come on - how long is it going to take to answer those questions?

weee

What can I say? Google is your friend? I don't have time to explain each and every detail and most of it is common knowledge anyway. Self educate my friend, that's the right way to tackle this.

Best regards,

Hehe, I have tried searching for some of those nouns, but they are technical, and you must realize that on the web, I have empirically found that there are two types of technical/physical information - the "let's think about how fun physics is!"-information for high school students and the - "have a look at my latest Ph.D. essay guys!", but unfortunately very little in between there. It's like university people think "naah, it's all too advanced to put on the net anyway".

But don't you think I'm worth an answer after all this time ?

Well, you do score extra points for persistence, what answers were you looking for exactly?

Best regards,