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DIY Subwoofers - General Discussion

  Discuss DAYTON MKIII sounds awful! Need Help! in the DIY Subwoofers and Build Projects forum; DAYTON MKIII sounds awful! Need Help! I will tell you based on my system alone. My LFE response is the same at low levels and just ...



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Old 07-28-09, 12:38 AM   #11
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Re: DAYTON MKIII sounds awful! Need Help!


I will tell you based on my system alone. My LFE response is the same at low levels and just gets more and more just more of everything as you increase the input, but the feel is still there at the lowest levels. This leads me to wonder if you have something out of phase or set wrong. Try using just one of the drivers and just do the test tones and see what happens



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Old 07-28-09, 12:42 AM   #12
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Re: DAYTON MKIII sounds awful! Need Help!


Quote:
Progneta wrote: View Post
Nope. I have crossover set too about 120ish and the amp set to subsynth

What exactly is subsynth?


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Old 07-28-09, 12:52 AM   #13
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Re: DAYTON MKIII sounds awful! Need Help!


I was running room wizard eq and at 40 HZ it is insane! At 40 hertz and 20 Ft back it is 109 db. Then when I go to 45hz-50hz it drops to about 92 db.


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Old 07-28-09, 12:55 AM   #14
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Re: DAYTON MKIII sounds awful! Need Help!


Quote:
Progneta wrote: View Post
I was running room wizard eq and at 40 HZ it is insane! At 40 hertz and 20 Ft back it is 109 db. Then when I go to 45hz-50hz it drops to about 92 db.
Did you run a sweep?

What about 10, 20, 30 and etc. Hz?


Last edited by robertcharles123; 07-28-09 at 01:01 AM..

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Old 07-28-09, 12:59 AM   #15
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Re: DAYTON MKIII sounds awful! Need Help!


First thing I would do is a sweep and get a frequency response curve. What is the tuning of the system? Then see what kind of EQ is needed if any.

109 dB on the meter sounds like you are in the right ball park, and seems like there is a null in the setup like it is configured. You might have to place the cabs or cab in a different spot.


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Old 07-28-09, 01:08 AM   #16
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Re: DAYTON MKIII sounds awful! Need Help!


The specs from Rich at Dayton was tune cabinet to 23 hz.

At 25 FT:
10 hz 82 db ( fan mode...I love this they subs just bounce )
20 hz 91 DB
30 hz 91 db
40 hz 105 db
50 hz 90.4 db
60 hz 92.8 db
70 hz 87.7 db
80 hz 84 db
90 hz 75 db
100 hz 76 db
110 hz 82 db
120 hz 79 db
130 hz 73 db
140 hz 76 db


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Old 07-28-09, 01:10 AM   #17
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Re: DAYTON MKIII sounds awful! Need Help!


I checked and they are in phase. But as I walk through the room I hear many blank "dead spots". As the sweep takes place there are times when the volume really drops during the sweep...ie between 50 and 60 hz the sound comes and goes


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Old 07-28-09, 01:15 AM   #18
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Re: DAYTON MKIII sounds awful! Need Help!


You just answered your question.


Last edited by robertcharles123; 07-28-09 at 01:20 AM..

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Old 07-28-09, 01:22 AM   #19
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Re: DAYTON MKIII sounds awful! Need Help!


Move those boxes and see how things pan out


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Old 07-28-09, 01:48 AM   #20
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Re: DAYTON MKIII sounds awful! Need Help!


Thanks. I am going to try moving those big things around. I know that moving them will improve sound coverage, but even when you enter the sound field, quality is still poor.


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