Aurasound NS15 reference subwoofers, ported or sealed?

[thadman]

I'm compiling a reference system (sound quality, spl) involving the RAAL 140-15D ribbon tweeter, AE TD6.5M, and AE TD15M. They will need to be augmented by subwoofers on the bottom end to ease excursion demands on the midbass.

I purchased four Aurasound NS15s a while back and plan on taking advantage of their capabilities They will be used for Music, Video Games, and Movies...they will really have to assume the role of Jack of all trades.

Output goals:
bass: 130dB transient, 120dB continuous. I do not want to fear blowing these drivers.
full-range: 120dB transient, 110dB continuous

Crossover:
LPF 80hz
HPF 20hz

Room: Medium

Any recommendations? Remember this is a reference system and they will have to keep up all the way down to 20hz with a TD15M crossed at 80hz.

[BHTX]

Wait a minute.. u mean you bought 4 of the NS15's.. like those from Madisound for $720 each? WHY??

[thadman]

Yes, I have four Aurasound NS15s. I am using these drivers because I'm compiling a "reference" system, I feel they are some of the best drivers available assuming they are used within their limits and should have no trouble reaching 80hz with low distortion.

[BHTX]

Ever stop to think that perhaps lowering the xo point, maybe even using a slightly shallower slope, and completely doing away with the highpass filter might improve things significantly? On top of all that, with the same amount of money you spent on those four 15's, I know of eighteen 18's you could have gotten instead, but just four of those would have done the job nicely.. just to put it in perspective.

[thadman]

Originally posted by BHTX
Ever stop to think that perhaps lowering the xo point, maybe even using a slightly shallower slope, and completely doing away with the highpass filter might improve things significantly? On top of all that, with the same amount of money you spent on those four 15's, I know of eighteen 18's you could have gotten instead, but just four of those would have done the job nicely.. just to put it in perspective.

I will be running the TD15M sealed and I would like to keep excursion under control at extremely high output levels, lowering the crossover point is not an option. BTW I'm well aware of the plethora of drivers available for bass reproduction, I don't need to be lectured. These are the drivers that have been chosen, as I already own them.

[BHTX]

Originally posted by thadman
I don't need to be lectured.

Then why's this thread here?

Anyway, if you're really planning to blast music/movies that loud so frequently, I suppose ported would be the way to go.. along with its highpass filter, highish steep xover point, very high delay, and terrible transient response.

Just remember, you'll likely sacrifice quite a bit to gain that few extra dB of headroom. But, you already knew that.

Have fun.

[usa_satriani]

Going sealed with Bessel quality Factor would be a good idea.

Then you would need a pro Eq or Velodyne SMS to EQ the response.

You will also need a huge Amp like one or two Crown K2 or Crest 8001.

Greg.

[sreten]

Originally posted by thadman


I will be running the TD15M sealed ......

Hi,

So what is the point of the question ?

/sreten.

[thadman]

Originally posted by sreten


Hi,

So what is the point of the question ?

/sreten.

The TD15M is the midbass, the Aurasound NS15 is the subwoofer

[thadman]

Originally posted by BHTX


Then why's this thread here?

Anyway, if you're really planning to blast music/movies that loud so frequently, I suppose ported would be the way to go.. along with its highpass filter, highish steep xover point, very high delay, and terrible transient response.

Just remember, you'll likely sacrifice quite a bit to gain that few extra dB of headroom. But, you already knew that.

Have fun.

The drivers have already been determined, this is not a best driver thread. I am asking about the application, thats why I don't need to be lectured on drivers since it would be an exercise in futility. Thank You.