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Multi-Way Conventional loudspeakers with crossovers

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Old 23rd June 2020, 05:50 PM   #3051
OllBoll is offline OllBoll  Sweden
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Quote:
Originally Posted by perceval View Post
Dayton now has a 21" ... time to upgrade?

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Pretty weak xmax though at only 11 mm. The smaller 18" Dayton Ultimax UM18 has 40% more volume displacement.
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Old 24th June 2020, 05:08 AM   #3052
architect is offline architect  Netherlands
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Originally Posted by Diega View Post
Easy baffle
Hi Diega,

How do you cross you topend? is it a Mundorf 17D2.2 ?
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Old 24th June 2020, 08:17 AM   #3053
Diega is offline Diega
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Default FX

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Originally Posted by architect View Post
Hi Diega,

How do you cross you topend? is it a Mundorf 17D2.2 ?
Yes it is, fx is only 2,7 müf capacitor
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Old 29th June 2020, 07:20 AM   #3054
snake69fast is offline snake69fast  Romania
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Quote:
Originally Posted by mlee View Post
Super builds all!! Thought I'd share my Line Array OB 3-way. Eminence 2515, NEO8-PDR and PT-minis.

Hi! Nice build... I didn-t understant exactly what are the "PT-minis". This is still your current setup? What are the crossover points? Thank you!
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Old 29th June 2020, 09:46 AM   #3055
mlee is offline mlee  Canada
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Originally Posted by snake69fast View Post
Hi! Nice build... I didn-t understant exactly what are the "PT-minis". This is still your current setup? What are the crossover points? Thank you!
Thanks! This is still my current setup. I'm really enjoying this one. I still have to run a bunch more measurements but time is short right now. The crossover points are around 325hz and 8khz. The PTmini’s are small tweeters.

Dayton Audio PTMini-6 Planar Tweeter 6 Ohm
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Old 29th June 2020, 10:23 AM   #3056
perceval is offline perceval  Taiwan
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Quote:
Originally Posted by mlee View Post
Yes ob line arrays!!!!!!!

Depends on the room. If you do go full on ob line array make sure your bass array has enough to get you there and you won't be disappointed.

The tonality changes a bit but if you have a long room it makes up for it in more even coverage overall. I'm very happy with ob line arrays VS sealed line array but they were drastically different builds
I have a long room, but I listen on the wide side, speakers are at about 1/3 on the long wall.

I don't think I could go with a bunch of 15", wife would kill me. I was thinking about the SBA 5x8" racetrack woofer. I have it in my MLTL, and in an OB built as well. They don't go crazy low by themselves, but they can take a lot of EQ down below without breaking a sweat.

I'm not sure... I can't get the Sd needed for low end in this room so I need to think of a way.
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Old 30th June 2020, 10:26 PM   #3057
rb132333 is offline rb132333  United States
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Default My Active OB System

I have been thinking about this design for some time (too long?) and I finally built it. I wanted to go active on my primary system that I use for TV and music. It is a 4 way system - subwoofer to 100 hz; woofer from 100 hz to 400 hz; mid-range from 400 hz to 2000 hz and tweeter above 2000 hz.

I have the following drivers:
o BIC F-12 Subwoofer
o Eminence 3012 Kappalite LF (I luv Neo drivers)
o Satori MW16PNW-4
o Dayton AMT Pro-4

Next upgrade is to replace tweeter with the Heil AMT. I will move the Dayton to my (under construction) garage system.
Attached Images
File Type: jpg DSCN0025.JPG (224.0 KB, 280 views)
File Type: jpg DSCN0026.JPG (274.6 KB, 264 views)
File Type: jpg DSCN0027.JPG (272.0 KB, 258 views)
File Type: jpg DSCN0020.jpg (480.9 KB, 257 views)
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Old 30th June 2020, 11:30 PM   #3058
WBS is offline WBS  United States
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Nicely done!

I would probably drill holes in the pipe support in order to hide the speaker wires.
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Old 1st July 2020, 04:39 AM   #3059
architect is offline architect  Netherlands
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Join Date: Nov 2004
Location: Friesland
Quote:
Originally Posted by rb132333 View Post
I have been thinking about this design for some time (too long?) and I finally built it. I wanted to go active on my primary system that I use for TV and music. It is a 4 way system - subwoofer to 100 hz; woofer from 100 hz to 400 hz; mid-range from 400 hz to 2000 hz and tweeter above 2000 hz.

I have the following drivers:
o BIC F-12 Subwoofer
o Eminence 3012 Kappalite LF (I luv Neo drivers)
o Satori MW16PNW-4
o Dayton AMT Pro-4

Next upgrade is to replace tweeter with the Heil AMT. I will move the Dayton to my (under construction) garage system.
nice speakers rb132333,
some thoughts :
- I would guess you get resonances from the emminence 3012 while the tube is pretty deep, i think you might skip the complete tube - the 3012 is oke with 100-400hz i think
- are the acoustical centers of midwoofer and tweeter aligned vertically?

Last edited by architect; 1st July 2020 at 04:46 AM.
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Old 1st July 2020, 02:53 PM   #3060
rb132333 is offline rb132333  United States
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Join Date: Oct 2010
Location: now in sunny AZ
I did try to align the drivers. My room is 16' x 16' and open to the back. It certainly not the optimum room size for speakers. Here is a quick frequency response (1/12 octave smoothing) that I took at the listening position.
Attached Images
File Type: jpg OB #2.jpg (140.1 KB, 187 views)

Last edited by rb132333; 1st July 2020 at 02:54 PM. Reason: additional information
 

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