Is it possible to cover the whole spectrum, high SPL, low distortion with a 2-way?

[paul7052]

Lol you guys are a good time... isnt high spl and hearing a topic of frequency also? 115db at 30hz isnt as dangerous as say 700hz? Correct?

That 'Depends'. Pun intended.

 

[camplo]

High loudness potential is a side effect of high sound quality potential....
Size creates more direct energy and directivity.

I have no intentions of listening super loud. More 83db lol.

I also wanted the fun factor available and enough power to be used far field as well. Dont for get, I can switch whats mounted to the CD.

 

[Cal Weldon]

Brown note is a fallacy. That’s no ****

 

[camplo]

I was lost for about as long as it took me to google that 🤣🤣🤣

 

[Cal Weldon]

Size creates more direct energy and directivity.

Not sure what you mean by this but if you mean high SPL means greater directivity then I beg to differ. Big time SPL has a ‘splatter’ effect.

 

[camplo]

Larger drivers create higher amounts of directivity and direct energy....

"Larger size creates more..."

 

[camplo]

I'd like to provide some humor....I spent the last day under the impression that my measurements were correct....
I made a change...I added a top baffle to complete the slot, for proper measurements....somewhere along the lines the mic choice switched...Ive been starring at measurements from the labtop mic scratching my head... I even started working on the crossover in vituixcad 🤣🤣🤣

I was like "well it's within plus +/-2.5db....
They warned me about putting it in a slot"🤣🤣🤣

 

[daqvin_carter]

Try not to feel so bad about the mic thing. I once wanted to raise my mic by two feet so I used a five gallon bucket under the mic stand.
I then stared at the 300 hz null and realized the stand was probably a really bad idea.

 

[camplo]

Taken at maybe an 1inch in front of the slot in front of the drivers. Inside my living room.

 

[camplo]

Starting model ideas, Ported on left sim Sealed on Right.....the last iteration in HR (not shown here) is slightly different, yet all are in the ballpark....

 

[camplo]

I believe the room is still somewhat, in the measurements above(~70hz and ~90hz), due to window size? I am still learning that aspect of REW. I'm pretty sure I have to go outside to get better bass measurements regardless of window...

 

[camplo]

If I change the right window to 50ms I get this result for GD.

 

[camplo]

The more direct energy/directivity.....the less colored the FR, will be, by the room. But how low can this effect be had at a measure that mattered? For example with my wide 32" baffles, baffle step is around 140hz....so above that directivity is much stronger....and below that, the direct to reverb would be no more or less, equal, to a baffle, half the size? Or does the wider baffle still have a degree higher direct energy in comparison to the half width baffle at low bass frequencies like 100-50hz?

 

[Pano]

Stay away from personal comments and personal criticism or you will not be able to post. Final warning. Posts deleted.

 

[camplo]

This is what our ear filter looks like

 

[Brinkman]

Sort of. Remember, each line on the F/M chart is like a frame on a film strip; it is not until we “run the film” (re: examine the delta between subsequent lines) that we understand what it is it is telling us about our hearing with regard to acoustic amplitude.

 

[Ro808]

The frequency of beaming depends purely on the size of the speaker.
How this is beaming (the DI, directivity index) depends a little on the cone shape.
Although the majority of speakers kind of use the same shape for that.

What you're talking about is cone break-up/roll-off.
Which depends mostly on the inductance (or the lack thereof with demodulation rings) and mass of the cone.

Any other effects, like local resonances or surround-dips, might sometimes disturb the response as well.

Ever heard about geometrical stiffness?
2 examples.

 

[Robh3606]

High loudness potential is a side effect of high sound quality potential....
Size creates more direct energy and directivity.

I have no intentions of listening super loud. More 83db lol.

Then why didn't you go with a good pair of bridge mounts and a sub?? They can hit 110dB or more for a pair.

Rob

 

[b_force]

Ever heard about geometrical stiffness?
2 examples.

Yes, I mentioned that even in the message you just replied to?

 

[camplo]

Then why didn't you go with a good pair of bridge mounts and a sub?? They can hit 110dB or more for a pair.

Rob

There are other aspects of SQ....Low excursion is just one.