 Re: LFR1100 Active
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Joined: Mar 2001
Posts: 1,387 Likes: 8
President connoisseur
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OP
President connoisseur
Joined: Mar 2001
Posts: 1,387 Likes: 8 |
 All is going AWESOME!
Ian Colquhoun
President & Chief Engineer
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Re: LFR1100 Active
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Joined: Jan 2007
Posts: 10,515 Likes: 117
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,515 Likes: 117 |
OMG! The Listening Window and the Sound Power are ONE! Ian, you did it! You will go down in the annals of speaker history!
House of the Rising Sone
Out in the mid or far field
Linearity and mid-woofers are over-rated
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Re: LFR1100 Active
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Joined: Jan 2007
Posts: 10,515 Likes: 117
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,515 Likes: 117 |
It's so beautiful. I can't stop looking at it. 2.5dB attenuation per decade!
House of the Rising Sone
Out in the mid or far field
Linearity and mid-woofers are over-rated
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Re: LFR1100 Active
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Joined: Jan 2007
Posts: 10,515 Likes: 117
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,515 Likes: 117 |
I'm still looking at those damned curves. I can't believe the Directivity Index is practically zero across the entire audible range.
House of the Rising Sone
Out in the mid or far field
Linearity and mid-woofers are over-rated
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Re: LFR1100 Active
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Joined: Mar 2001
Posts: 1,387 Likes: 8
President connoisseur
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OP
President connoisseur
Joined: Mar 2001
Posts: 1,387 Likes: 8 |
Hi Mojo,
Bringing the curves together like this is working in the blind listen testing too. The realism factor has gone up another notch. I am really looking forward to getting this version back down to my place.
Ian Colquhoun
President & Chief Engineer
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Re: LFR1100 Active
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Joined: Jan 2007
Posts: 10,515 Likes: 117
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,515 Likes: 117 |
You don't need to listen to it to know it's full of goodness. I mean, look at those curves. Compared to the passive 1100, they are far superior. I have no idea how Mattmanhasgonebutisbackdroolingandskeptical can possibly live with his passive LFRs!
House of the Rising Sone
Out in the mid or far field
Linearity and mid-woofers are over-rated
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Re: LFR1100 Active
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Joined: Sep 2009
Posts: 1,943 Likes: 101
connoisseur
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connoisseur
Joined: Sep 2009
Posts: 1,943 Likes: 101 |
Ha ... so let’s widen the window ... 20,25,30 degrees? I mean measurement window ... how wide till you see a reasonable deviation.
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Re: LFR1100 Active
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Joined: Sep 2009
Posts: 1,943 Likes: 101
connoisseur
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connoisseur
Joined: Sep 2009
Posts: 1,943 Likes: 101 |
Even more questions
What is the test setup .... you need to have walls to reflect off of ...
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Re: LFR1100 Active
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Joined: Jan 2007
Posts: 10,515 Likes: 117
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,515 Likes: 117 |
Nope. No walls needed. "Just" the Axiom anechoic chamber, a turntable, signal generator, mic, and waveform recorder.
House of the Rising Sone
Out in the mid or far field
Linearity and mid-woofers are over-rated
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Re: LFR1100 Active
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Joined: Dec 2003
Posts: 2,021 Likes: 1
connoisseur
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connoisseur
Joined: Dec 2003
Posts: 2,021 Likes: 1 |
Even more questions
What is the test setup .... you need to have walls to reflect off of ... If memory serves, there are two curves posted. The red curve is the on axis curve. The blue is the average response of curves at 7.5 degree increments in both the horizontal and vertical plane, or 48 measurements in both the horizontal and vertical planes. It is also done in the chamber to keep any effect of the sidewalls, floor and ceiling from occurring.
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