System Pictures & Description

[Porsche]

another really nice build for a client, this is our Master Artist Tower with powered bass module. Drivers used are dynaudio esotec drivers for t/m/w and a custom dynaudio 9" subwoofer. Crossoevers are designed using mundorf, clarity and goertz. Internal wiring is Kimber. Wrapped in a high grade black vinyl with bubinga inserts

 

[planet10]

Wouldn’t they work better with much closer spacing in the MTM?

dave

 

[Porsche]

its a 3 way top, the top is crossed as a mid and the bottom is a woofer. the mid is playing from about 250hz to 3500hz, the woofer is 250hz down to about 65hz

 

[Lojzek]

He meant the center to center distance of the midrange units should be shorter.
How much space does the tweeter occupy from inside? (ceramic magnet?)

 

[Porsche]

He meant the center to center distance of the midrange units should be shorter.
How much space does the tweeter occupy from inside? (ceramic magnet?)

mid to tweeter is about 5" center to center

 

[planet10]

The measurement needs to be taken fron centre of one mid to centre of the other.

Any distance over a quarter wavelength at the XO frequency is a compromise, you want to get as close as possible. How much “empty” space is between a mid and the tweeter.

dave

 

[Zen Mod]

who cares, when they're having Bubinga inserts

 

[Jonasz]

The measurement needs to be taken fron centre of one mid to centre of the other.

He says it’s not a MTM

 

[planet10]

Then what is the thing sitting on top of the bass bins? Even if the MTM arrangement is a 2.5 way system, the spacing is still questionable.

dave

 

[Jonasz]

From post 3603:

”its a 3 way top, the top is crossed as a mid and the bottom is a woofer. the mid is playing from about 250hz to 3500hz, the woofer is 250hz down to about 65hz”

 

[planet10]

Thta implies an MTM on top with an XO of 3.5kHz. Even with a closely spaced MTM, that is a highish XO making the large separation even more of an issue..

dave

 

[Jonasz]

Hmmm I read it as it’s a 4-way with a 3-way top. Upper 6” is the midrange and lower 6” is the woofer. I’ve been wrong before though…

 

[Porsche]

pretty much, don't understand the confusion

 

[Horneydude]

The finish and appearance look great imo, with top notch parts, but my first thought was that the top three drivers are spaced too far apart, regardless of MTM or otherwise. If this poses a problem in real life (as in listening to music) I can't say, it may depend of the steepness (order) of the applied filtering. I guess measurements will tell something about how the speaker behaves in the crossover region, where multiple drivers emit the same frequencies.

 

[planet10]

the top three drivers are spaced too far apart, regardless of MTM or otherwise.

Exactly.

Porche, one of the midranges has a lowpass on it and does not reach the tweeter?

dave

 

[Porsche]

if u say so, they sound really nice so far an i guess alot of big name speaker makers have gotten it wrong as well

 

[planet10]

I am not saying so, just asking for more information, which has not been forthcoming.

It is still not clear whether the top is an MTM or a 2.5way module.

dave

 

[Porsche]

post 3603 clearly states its a 2.5

 

[planet10]

its a 3 way top

OK got it, thanx.

dave

 

[RAAM]

Very nice looking excellent craftsmanship as well!
Not my place to make a statement on how well it works as not anywhere near as experienced as many here are so all I can say is if you are happy, great!!!
Rick