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Multi-Way Conventional loudspeakers with crossovers

System Pictures & Description
System Pictures & Description
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Old 7th July 2019, 06:39 AM   #3181
8x24 inch is offline 8x24 inch  Norway
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Quote:
Originally Posted by kazap View Post
The frequency sweep looks excellent. You must have designed it well. How did you make your design choices?
Traveled around and heard many different solutions and chose what I think sounded best on music.

However, such measurements cannot be reached without a well-treated room. That's the most important part.
Look at the waterfall from 50 - 150 Hz. It requires a good job with the room.
The room has many self-assembled solutions, and first reflections are under very good control

Another important thing is the choice of a good DSP solution.
I use Audiolense

Last edited by 8x24 inch; 7th July 2019 at 06:47 AM.
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Old 7th July 2019, 06:46 AM   #3182
8x24 inch is offline 8x24 inch  Norway
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Quote:
Originally Posted by kazap View Post
I saw your design rationale on your sub thread:

My philosophy is lot of membrane areas and low stroke. It produces little distortion.
I think it is important with low group delay.
The room is also very important, and it is important to work for short reverberation in the lowest bass


Can I ask about the "6 pcs. Acoustic Elegance TD15M in OB - midbass from 60 - 500 Hz" please?


Is OB short for open baffle?
Were the TD15M originally meant for a sealed box?
Did you put the TD15M in a sealed box?
If so why change and how does it sound?


Thanks for posting your photos and measurements of your super system!
Thanks, we think a lot in the same way
Yes, open baffle.

Would never reach such a waterfall with a closed midbass system
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Old 7th July 2019, 06:57 AM   #3183
8x24 inch is offline 8x24 inch  Norway
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At a slightly earlier stage, when there still was some trouble with the midbass, but pretty good control over distortion
Attached Images
File Type: png forvrengning mellomtone.png (341.2 KB, 656 views)

Last edited by 8x24 inch; 7th July 2019 at 07:08 AM.
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Old 7th July 2019, 09:10 AM   #3184
kazap is offline kazap
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Quote:
Originally Posted by 8x24 inch View Post
..... Yes, open baffle.Would never reach such a waterfall with a closed midbass system

Your waterfall is a thing of beauty. Its so clean. So OB mid-bass reduces resonances? Seems obvious now I think about it. Thanks for the tips.


The waterfall is so good it makes 34Hz loom large. Is that from the eight PD.2450 resonating, or the six AE-TD15 or something in the room?



Click the image to open in full size.
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Old 7th July 2019, 09:20 AM   #3185
8x24 inch is offline 8x24 inch  Norway
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Just nice to contribute.
Something in the room, and I'm still working for better results
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Old 7th July 2019, 12:52 PM   #3186
6thplanet is offline 6thplanet  United States
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Default Titan

Finished this project last week. The drivers are LCY108 tweeters, HM130Z4 Audax mid-ranges, and Aurium Cantus AC250F1 woofers. The woofer is in a sealed enclosure and the M/T above it is OB. The series crossover is at 300 and 4k. Wood used is Rosewood veneer and Wenge, finished with 4 coats of Waterlox. Sorry about the pics, wish this had a way of rotating them.
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File Type: jpg 2FDACD76-356B-4A29-9032-616765A926EB.jpg (532.7 KB, 636 views)
File Type: jpg 3F67EEC7-D1A2-4B3D-A935-B8E8C2ECC017.jpg (644.2 KB, 630 views)
File Type: jpg 3D5FB964-1FA7-4E6B-AD27-F2A79294B4B3.jpg (999.3 KB, 609 views)
File Type: jpeg 1D2532C9-627F-43CE-B7A6-D28232A26A62.jpeg (797.1 KB, 129 views)
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Old 7th July 2019, 02:54 PM   #3187
academia50 is offline academia50  Argentina
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Quote:
Originally Posted by 6thplanet View Post
Sorry about the pics, wish this had a way of rotating them.

The Windows Image Viewer has that option.
You have to rotate them before uploading them to the forum.
Congratulations for the monster.... :
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File Type: jpeg 1D2532C9-627F-43CE-B7A6-D28232A26A62.jpeg (797.1 KB, 120 views)
File Type: jpg 2FDACD76-356B-4A29-9032-616765A926EB.jpg (395.4 KB, 157 views)
File Type: jpg 3D5FB964-1FA7-4E6B-AD27-F2A79294B4B3.jpg (838.1 KB, 158 views)
File Type: jpg 3F67EEC7-D1A2-4B3D-A935-B8E8C2ECC017.jpg (475.7 KB, 132 views)
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Old 7th July 2019, 05:33 PM   #3188
6thplanet is offline 6thplanet  United States
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Oh wow, sorry, not the best at stuff like that. I feel I can build a heck of speaker, though! Thanks for flipping them around for me.
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Old 7th July 2019, 05:37 PM   #3189
8x24 inch is offline 8x24 inch  Norway
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Some pictures from the midrange Construction

140 kg
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File Type: jpg mellomtone 3.JPG (107.3 KB, 163 views)
File Type: jpg mellomtone 2.JPG (71.0 KB, 101 views)
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File Type: jpg mellomtone 8.JPG (221.5 KB, 148 views)
File Type: jpg mellomtone 9.JPG (235.7 KB, 186 views)
File Type: jpg mellomtone 11.JPG (221.9 KB, 163 views)
File Type: jpg mellomtone 10.JPG (26.0 KB, 121 views)
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Old 7th July 2019, 05:56 PM   #3190
8x24 inch is offline 8x24 inch  Norway
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Last tweeter solution
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