Making a 6x10 cab... Ohms?

[will33]

Steve Jobs gave us the Ipad, Einstein gave us the atomic bomb...

Come on folks, this is the internet, take everything with a grain of salt. No one on here is worth getting upset over, but there are definitely a few people on here worth making friends.

Some people just like to argue.

The "emotion trumps logic" thing.....

 

[greenboy]

As illogical as it sounds, due to the laws of physics, it takes TEN times the electronic power to make a 3dB audible difference.

With all the meta-discussion going on, I guess people aren't catching incorrect and widely circulated and repeated comments like the above statement. I see them in so many threads that I usually just look away these days and pretend that I didn't see them.

But 10 dB of additional amplifier output (10 times the power) into the speakers (if the speakers are up to it and if thermal compression is not factored in) makes roughly 10 dB more acoustic output, which is generally accepted as being twice as loud.

Doubling the amplifier output (3dB) gives 3 dB of additional output. That's about the same as adding an identical cab with a tube amp with multiple taps.

See how 10 = 10 and 3 = 3?

 

[will33]

With all the meta-discussion going on, I guess people aren't catching incorrect and widely circulated and incorrect comments like the above statement. I see them in so many threads that I usually just look away these days and pretend that I didn't see them.

But 10 dB of additional amplifier output (10 times the power) into the speakers (if the speakers are up to it and if thermal compression is not factored in) makes roughly 10 dB more acoustic output, which is generally accepted as being twice as loud.

Doubling the amplifier output (3dB) gives 3 dB of additional output. That's about the same as adding an identical cab with a tube amp with multiple taps.

See how 10 = 10 and 3 = 3?

Here's another guy you could stand to learn a whole lot from if you can manage to put your feelings aside for a minute.

Seems to me some people just run around looking to get dis'd so they have someone to yell at rather than just soak up the knowledge.

 

[fcoda]

" Back to the original topic, 5.33 ohms is just fine for the OP's amp "

LMAO

 

[CL400Peavey]

No kidding....

Back to the original topic, 5.33 ohms is just fine for the OP's amp.

Yes, Regardless of any of the other stuff, his amp should be just fine running with that impedance.

 

[bassmeknik]

Where is the negativity?

I was referring to your post about your college teacher directly and to Mr. Fitzmaurice in general. His posts today were not negative in themselves, just blunt. There are many other examples I can think of (including his earlier responses to me) where I (and other posters) felt belittled.

TB is not for the thin skinned.

BFM is a leading expert in his field. I have followed his career for 25 years and own his book. There is no one better to ask these types of questions.

 

[skychief]

If he used six 4-ohm drivers, a series/parallel connection, they would net about 5.6 ohms for the cab.

And if you're hell-bent on making your own cab, I say do it.
I built a 2x15 cab many years ago. Had no idea what i was doing, the thing is lopsided, weighs a ton, but guess what: the thing sounds pretty damn good. It use it regularly.

So go ahead and do your build. But ya need to post pics when you're done. thats the rules.

 

[SBsoundguy]

Aside from some basic carpentry skills building your own cabinet without knowing how to properly design one is a waste of time. Now if it was a guitar cab that'd be a different story.

Bill is blunt. Don't look for emotion behind his comments.

 

[YuppyPunk]

Aside from some basic carpentry skills building your own cabinet without knowing how to properly design one is a waste of time. Now if it was a guitar cab that'd be a different story.

Bill is blunt. Don't look for emotion behind his comments.

How is it known that the OP lacks the skills to build a cabinet? Maybe he's a master carpenter and has calcuated everything perfectly, but is merely weak on the wiring aspect.

 

[Bass_Pounder]

I hear a couple of you saying that you can't handle the niceties of instructional conversation and just need to get right to the point which may come off as rude. So, I'd simply ask why bother to respond at all?

On the flipside of your point............

What if guys like Bill, Greenboy, etc. do just that ?

What is better for the community overall ?

Answering the same questions over and over again from members that don't even have a clue what T/S parameters are, or what they are used for can get quite tiresome.

Do you prefer they just stop sharing their knowledge because they may make someone feel butthurt

 

[CL400Peavey]

Trust me I didnt like, and wouldnt recommend the tutorial style. My professors were not negative in the least, but that doesnt mean my frustration didnt build. Having now read up on a lot of Physics Education Research I understand that the method is successful. I didnt like the run around in getting answers to my questions. It did teach me to ask the right questions, and I will reluctantly say that I benefited from the class. I wouldnt say that my motivation was anger, but it did goad me into studying topics deeper than I might otherwise have.

And that motivated you? Thank you for your post, I have learned peoples motivations are widely varied. Now I have a homework assignment.

 

[YuppyPunk]

On the flipside of your point............

What if guys like Bill, Greenboy, etc. do just that ?

What is better for the community overall ?

Answering the same questions over and over again from members that don't even have a clue what T/S parameters are, or what they are used for can get quite tiresome.

Do you prefer they just stop sharing their knowledge because they may make someone feel butthurt

Or, and this may sound strange, direct the people to where they can have their question answered such as stickies, other sites or books.

Often times when starting to look into a topic you don't even know where to begin looking for answers so you ask others. People should either answer, state where the answer can be found or remain silent.

My minister always says that the things we say should always be true, nessessary and kind. If the thing you were going to say isn't all 3 then don't say anything. Bill's post was true, may have been nessessary, but clearly wasn't kind.

 

[SBsoundguy]

How is it known that the OP lacks the skills to build a cabinet? Maybe he's a master carpenter and has calcuated everything perfectly, but is merely weak on the wiring aspect.

Wouldn't one know how to wire a cabinet if he can properly design his own? Wouldn't someone who knows how to build a car know how to install a radiator?

 

[Bass_Pounder]

Or, and this may sound strange, direct the people to where they can have their question answered such as stickies, other sites or books.

Often times when starting to look into a topic you don't even know where to begin looking for answers so you ask others. People should either answer, state where the answer can be found or remain silent.

My minister always says that the things we say should always be true, nessessary and kind. If the thing you were going to say isn't all 3 then don't say anything. Bill's post was true, may have been nessessary, but clearly wasn't kind.

"Kind" is in the eye of the person recieving the information.

I fully understand your point, but it does seem that in this age of the internet, there are many that just wish to have information "spoon fed" to them , and feel slighted if there is any inference to telling someone they need to research further and come back with the right questions.

Not saying that is the case here, just making an observation as to the direction I have personally seen these types of threads take over the past 10 years or so.

 

[YuppyPunk]

Wouldn't one know how to wire a cabinet if he can properly design his own? Wouldn't someone who knows how to build a car know how to install a radiator?

So one should be an expert in all aspects of cab design and building before beginning? Something tells me that when Bill, Greenboy and other experts build their first cab they had some skills that weren't fully developed.

 

[greenboy]

My minister always says that the things we say should always be true, nessessary and kind. If the thing you were going to say isn't all 3 then don't say anything. Bill's post was true, may have been nessessary, but clearly wasn't kind.

Should also be applied to rebuttals as well then, and not just the initial responses. In spite of all the moral religious underpinnings people say they espouse, the observed behavior is generally that if someone feels that they got a diss (whether that is true or not), they seem to think that it is then all right for them to say unkind things back in spite of their religious affiliation or whatever.

One could just forgo all the meta-discussion and stick to the facts.

 

[fcoda]

What was the question ?

 

[Horny Toad]

What was the question ?

Which 5.3 Ohm, used 6x10 is best for metal.

 

[SBsoundguy]

So one should be an expert in all aspects of cab design and building before beginning? Something tells me that when Bill, Greenboy and other experts build their first cab they had some skills that weren't fully developed.

No, but one should have a good understanding and that would require a lot of reading. Included in that reading would be instructions on how to wire cabinets and different way to do it.

 

[billfitzmaurice]

Or maybe it's not a lack of knowledge, but a lack of experience.

To put it into perspective if one was to take a graduate level course in speaker building the actual construction of a cabinet would be the 'final exam', taking place at the end of the semester, after some 80 hours of classroom instruction and perhaps three times that amount of home study. The questions posed by the OP would be covered within the first two weeks of classes.