New Accutons

[philiparcario]

Re: New Accutons

Yes, you have it right. Sorry, I mixed my words up....long day at work...greater cone area, less excursion, same displacement. The high sensitivity in the case of this Accuton driver (or any driver for that matter) is still a good thing, as the less power input required for the acoustic output will mean less thermal stress on the voice coil/motor, everything else being equal.

part of what happens in your first idea which was not exactly correct, is that for practical applications high sensitivity can allow 2 drivers instead of one. or 4 drivers instead of 2. lets say a van has space for 4 eight inch woofers these four woofers would work with a 320 watt sub amp.

http://www.mcmelectronics.com/produc...-1550-/55-1550 all 4 sealed

small xmax of 1.5mm but high sensitive and lots of area. also the sealed van will reinforce the sound/deep.


http://mobile.jlaudio.com/products_subs.php?series_id=1 the one sealed

well known super sub eight inches crazy xmax 19mm handles 500 watts low sensitive. the cheaper setup of 8 low xmax would be better in a lot of ways.

[r-carpenter]

Re: New Accutons

Come on technology trickle down!!!

you mean like wealth trickling down from rich down?
yeah......

[Zach C.]

Re: New Accutons

Come on technology trickle down!!!

[dcibel]

Re: New Accutons

Nope, not quite.

Displacement at a specific frequency determines output SPL.

It takes less power to reach a specific SPL with a high efficiency driver, but that means you reach Xmax with less power too.

A lower efficiency driver with more Xmax, will have more total output potential, even if it takes more power to do it.

If a low efficiency driver with the same cone area as a high efficiency driver is driven to the same excursion, both drivers will be putting out the same SPL.

Yes, you have it right. Sorry, I mixed my words up....long day at work...greater cone area, less excursion, same displacement. The high sensitivity in the case of this Accuton driver (or any driver for that matter) is still a good thing, as the less power input required for the acoustic output will mean less thermal stress on the voice coil/motor, everything else being equal.

[johnnyrichards]

Re: New Accutons

Dang it Pete, you beat me to it:p

[johnnyrichards]

Re: New Accutons

From what I understand, output at a given frequency is nothing more than a function of displacement. With just 6mm of Xmax, this driver will be capable of diminished output below 30 Hz, no matter what the sensitivity is. The sensitivity just means you can use 50 watts to meet excursion limits rather than 200 watts - but your output is defined by displacement, not sensitivity.

I wrestled with that concept for years - coming from a car audio background where everyone used to place so much emphasis on "sensitivity" I kind of missed the point on displacement.

[Pete Schumacher]

Re: New Accutons

Let's assume same excursion for same input, high sensitivity translates into more output per same input. So, along the same lines, translates into less excursion for a given acoustic output.

Nope, not quite.

Displacement at a specific frequency determines output SPL.

It takes less power to reach a specific SPL with a high efficiency driver, but that means you reach Xmax with less power too.

A lower efficiency driver with more Xmax, will have more total output potential, even if it takes more power to do it.

If a low efficiency driver with the same cone area as a high efficiency driver is driven to the same excursion, both drivers will be putting out the same SPL.

[mgrabow]

Re: New Accutons

Let's assume same excursion for same input, high sensitivity translates into more output per same input. So, along the same lines, translates into less excursion for a given acoustic output.

not sinking through my thick skull. Does not more output mean more excursion?

More excursion means more air movement means more db. No?

I understand that it will take less input to equal the same output, but by that the same input may push it past its xmax. no?

[dcibel]

Re: New Accutons

How about in a 4-way as a mid-bass with this at the bottom?

If I win the lottery, I think I'll build that 4-way just because I can. Except, even though this driver is a bit cheaper, I think I'll use it instead:

[dcibel]

Re: New Accutons

Does not a high sensitivity translate mechanically into more cone excursion with less input?

Let's assume same excursion for same input, high sensitivity translates into more output per same input. So, along the same lines, translates into less excursion for a given acoustic output.

[mgrabow]

Re: New Accutons

Accuton speakers look like an excellent performing speaker, but the price...a bit much.

I'll take two of the big one though. Completely distortion free for the bottom of a three way. Might only have 6mm xmax, but the high sensitivity balances it out.

Teach me Oh Great Ones... Does not a high sensitivity translate mechanically into more cone excursion with less input? If that is the case then how does a high sensitivity balance out a low xmax.

If that is not the case then how does high sensitivity balance out a low xmax?

Once again, just looking for an education...

[Flint]

Re: New Accutons

Completely distortion free for the bottom of a three way.

How about in a 4-way as a mid-bass with this at the bottom?

[charlielaub]

Re: New Accutons

...it goes to eleven, for that extra push over the cliff!

-Charlie

[Paul Carmody]

Re: New Accutons

That 11" gave me heart palpitations for a moment, there.

[Wolf]

Re: New Accutons

:eek::eek::eek::eek:$$$$!!!!!

But man- that 11" looks sweet...:D
Wolf