Ok Dr. Geddes, no problem because I can run windows on my mac with Parallels. What are the adjustments for the holm? what should I look for and how to take exactly each measurement?
Thx
Didn't I send you a paper outlining the measurements?
Didn't I send you a paper outlining the measurements?
yes, I forgot, I will search it. thx
these links are easier to open:
Waterfall showing my ringing room...
http://postimg.org/image/fqdggwjut/
sub 1 Dayton near the listening position
View image: Captura de Tela 2013 04 17 às 22 09 52
sub 2 SVS in the back wall corner
View image: Captura de Tela 2013 04 17 às 22 10 10
sub 3 Dyton in the backwall, not corner
View image: Captura de Tela 2013 04 17 às 22 10 18
sub1, 2 and 3 without the mains.
View image: Captura de Tela 2013 04 17 às 22 09 43
mains + sub1 ,sub2 and sub3
View image: Captura de Tela 2013 04 17 às 22 09 33
sub 1 with 90 phase invert, sub 2 with 180 phase invert and sub 3 normal phase
View image: Captura de Tela 2013 04 17 às 22 10 27
all measurements
View image: Captura de Tela 2013 04 17 às 22 09 14
Waterfall showing my ringing room...
http://postimg.org/image/fqdggwjut/
sub 1 Dayton near the listening position
View image: Captura de Tela 2013 04 17 às 22 09 52
sub 2 SVS in the back wall corner
View image: Captura de Tela 2013 04 17 às 22 10 10
sub 3 Dyton in the backwall, not corner
View image: Captura de Tela 2013 04 17 às 22 10 18
sub1, 2 and 3 without the mains.
View image: Captura de Tela 2013 04 17 às 22 09 43
mains + sub1 ,sub2 and sub3
View image: Captura de Tela 2013 04 17 às 22 09 33
sub 1 with 90 phase invert, sub 2 with 180 phase invert and sub 3 normal phase
View image: Captura de Tela 2013 04 17 às 22 10 27
all measurements
View image: Captura de Tela 2013 04 17 às 22 09 14
Last edited:
Not sure what you're trying to do. Multiple subs and near field sub are two different approaches.
Could you post a floor plan?
here it is Markus, View image: Sem Título 1
ok, I will do that....and please post the .mdat
this are my new measurements.
As oriented by Dr. Geddes, I repositioned my 3rd sub, the one that it's near me, so I placed in the left side wall, at 1/3 the corner.
The measurements are done with HOLM and REW, also I measured with an Ipad software that has a FFT from studio six digital.
There is no EQ or delay adjust at the DCX.
Something that I'm little confused is with the output loudness, how I calculate the best volume to measure? I'm using the volume I used to listen, but I'm not certain hat this is the correct approach.
Now lets listen to the Audio GURUs...
the 3 subs without the mains, phases zero.
the 3 subs without the mains, phases inverted 180.
As oriented by Dr. Geddes, I repositioned my 3rd sub, the one that it's near me, so I placed in the left side wall, at 1/3 the corner.
The measurements are done with HOLM and REW, also I measured with an Ipad software that has a FFT from studio six digital.
There is no EQ or delay adjust at the DCX.
Something that I'm little confused is with the output loudness, how I calculate the best volume to measure? I'm using the volume I used to listen, but I'm not certain hat this is the correct approach.
Now lets listen to the Audio GURUs...
the 3 subs without the mains, phases zero.
the 3 subs without the mains, phases inverted 180.
Last edited:
There doesn't seem to be much low frequency output at all?
Did you try the near field configuration described at http://www.diyaudio.com/forums/mult...alization-bass-small-rooms-5.html#post3458938
P.S. Zip the .mdat and upload it here (if it's within file size limits).
Did you try the near field configuration described at http://www.diyaudio.com/forums/mult...alization-bass-small-rooms-5.html#post3458938
P.S. Zip the .mdat and upload it here (if it's within file size limits).
Agreed. The F3 of the "sub" seems to be about 48-50Hz. That's fine for most stuff, no problem. But not really what I'd call a subwoofer, except in a very small system.There doesn't seem to be much low frequency output at all?
Can you switch polarity separately on the subs? You might find a combination of polarities that give you a smoother response. Worth a try.View attachment 345563
the 3 subs without the mains, phases inverted 180.
Simulation of your room
I tried to simulate your room with an online version of a room simulator located at Lautsprecher Rechner - AUDIO . I "moved" 3 subs until I got the smoothest response fo your listening position.
I ended up with one sub in the front right corner, on sub in the left back corner and one sub on right wall 2 meters away from the front right corner.
I tried to simulate your room with an online version of a room simulator located at Lautsprecher Rechner - AUDIO . I "moved" 3 subs until I got the smoothest response fo your listening position.
I ended up with one sub in the front right corner, on sub in the left back corner and one sub on right wall 2 meters away from the front right corner.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Loudspeakers
- Multi-Way
- DCX2496 EQ Tips... Does anyone had success with Equalization of bass is Small Rooms?