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Old 28th July 2012, 01:43 PM   #521
tsiros is offline tsiros  Greece
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melon: the filtering that you do for the >300 Hz and <300 Hz doesn't induce phase offset?
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Old 28th July 2012, 01:49 PM   #522
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I have to measure it. I will do it soon
I don't have filtering > 300Hz. The 10" is run full range.
This sucker is 1.5.5
At the moment I have 3 mH on one 15" and 6 mH on the other.
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Old 28th July 2012, 02:33 PM   #523
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Here is the frequency response 1 m on axis at a fraction of a watt

Edit: Need to install mic calibration. Things might change a bit
Attached Images
File Type: jpg OB.jpg (100.1 KB, 149 views)

Last edited by Melon Head; 28th July 2012 at 02:35 PM.
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Old 28th July 2012, 02:40 PM   #524
Octavia is offline Octavia  United States
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I see a lot to like in that chart. I'm curious to know the geometry of your listening set up. How far apart are the speakers and how far back is your listening position?
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Old 28th July 2012, 03:02 PM   #525
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Default FR Plot at listening position

Forget the response above. The calibration file makes a bit of a difference.
This is as the listening position.
I will repeat the 1 m on axis in a minute
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File Type: jpg OB listening position.jpg (99.8 KB, 127 views)
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Old 28th July 2012, 03:09 PM   #526
tsiros is offline tsiros  Greece
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9 dB absolute max deviation without harsh peaks. nice.

i'm scared to measure mine. It will be like someone gave a spastic person with parkinson's a pen and LogLin paper
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Old 28th July 2012, 03:09 PM   #527
ra7 is offline ra7  United States
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What are you measuring, raw driver, driver on IB, driver on OB, system on OB, which drivers?

Measurement parameters? In room? Outside? Gating? Sine, pink or MLS? Graph smoothing?

That looks like a very good start!
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Old 28th July 2012, 03:10 PM   #528
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Default 1m on Axis

Here is the 1m on axis (with mic calibration)
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File Type: jpg OB.jpg (98.8 KB, 123 views)
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Old 28th July 2012, 03:12 PM   #529
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Quote:
Originally Posted by ra7 View Post
What are you measuring, raw driver, driver on IB, driver on OB, system on OB, which drivers?

Measurement parameters? In room? Outside? Gating? Sine, pink or MLS? Graph smoothing?

That looks like a very good start!
Sorry. No not raw driver. The full completed speaker on OB.
That is 10" Neo, 15" (3mH) + 15" (6mH)
I will do raw drivers later
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Old 28th July 2012, 03:16 PM   #530
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Using 1/6 Octave smoothing.
I can possibly measure the seas raw as well on 1m cardboard baffle
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