hello,
I had made many loudspeakers before. this is my new project. 3 way loudspeakers with seas excel drivers.(w26fx001,w15ch001,t29cf002) They are not completed yet. I have almost made the enclosures. they are made from polyester fiber, plywood and MDF. The crossover will be inside the granite base (not on the photos). I have spent about 6 months on it by now. I will update this post when i 'll have completed the speakers.What do you think?
I had made many loudspeakers before. this is my new project. 3 way loudspeakers with seas excel drivers.(w26fx001,w15ch001,t29cf002) They are not completed yet. I have almost made the enclosures. they are made from polyester fiber, plywood and MDF. The crossover will be inside the granite base (not on the photos). I have spent about 6 months on it by now. I will update this post when i 'll have completed the speakers.What do you think?
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Is this really new? Because I've seen another "nautilus clone" that looked nearly identical, also using Seas Excel.
But whatever, that's a heck of a lot of work for the cabs, hope they sound as cool as they look. Be sure to cover the tweeter faceplate in thick felt as it looks like you're using a worst-case diffraction scenario for the tweeter (the other drivers should be okay, especially the woofer)
But whatever, that's a heck of a lot of work for the cabs, hope they sound as cool as they look. Be sure to cover the tweeter faceplate in thick felt as it looks like you're using a worst-case diffraction scenario for the tweeter (the other drivers should be okay, especially the woofer)
Note how in the B&W Nautilus, the drivers are large relative to their mounting surfaces, as it is with your woofer, where there's a minimum of "Baffle". A circular baffle has the same distance from the diaphragm to the edge at every point on the circumference, so you get one very heavy diffraction mode. There's quite a bit of documentation on the effects of surface mounting vs. flush-mounting dome tweeters, you can consider this as a worse version of surface mounting. By using felt, you absorb the energy that illuminates this edge, so there's a largely reduced amount of energy to excite the diffraction modes. This also helps reduce off-axis energy somewhat in the crossover range to the mid, which is a good thing in this and most cases.
here are some build pictures. Many thanks Badman for the explanations.
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Member
Joined 2003
finally finished
After a 6 months of work (every weekend and almost every evening) i finally completed the speakers. I must say that i will not do something like this again. The sound of those units is wonderfull. The bass don't go very low but is very good and stiff for this size closed type shells. The mid-high are very detailed. There is a big difference compared with my previous speakers whitch have bigger volume and dual bass Audax 8'' drivers and Morel tweeters. (there is also a big difference in the price of those units). I have completed the AV400 power amplifier to drive those speakers (http://www.diyaudio.com/forums/solid-state/191130-finished-av400-help-problem.html). It seems that they need powerfull amplifier as they are only about 86db/w.
I am very happy with the result. Optically the shells are a little strange but i can live with that.
After a 6 months of work (every weekend and almost every evening) i finally completed the speakers. I must say that i will not do something like this again. The sound of those units is wonderfull. The bass don't go very low but is very good and stiff for this size closed type shells. The mid-high are very detailed. There is a big difference compared with my previous speakers whitch have bigger volume and dual bass Audax 8'' drivers and Morel tweeters. (there is also a big difference in the price of those units). I have completed the AV400 power amplifier to drive those speakers (http://www.diyaudio.com/forums/solid-state/191130-finished-av400-help-problem.html). It seems that they need powerfull amplifier as they are only about 86db/w.
I am very happy with the result. Optically the shells are a little strange but i can live with that.
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