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Multi-Way Conventional loudspeakers with crossovers

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Old 16th November 2011, 09:00 PM   #211
Starre is offline Starre  Sweden
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Maybe I should only have one layer filling in the middle backside, more mid bass like that?
I have to try I guess.
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Old 16th November 2011, 09:52 PM   #212
Salas is offline Salas  Greece
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There is the back bounce that can smear your mids penetrating the cone. You should listen judiciously. Here's a speaker made for my brother, he has them stacked away now because he needed room. Maybe you like the color scheme. Good tone, goes deep, but needs drive. See how it dips Z due to car audio subwoofer type 8incher.
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Old 16th November 2011, 10:29 PM   #213
Salas is offline Salas  Greece
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P.S. Found its FR chart to be complete since I mentioned it. Interestingly it shows comparable trend in a small room with a friend's Harbeth Super HL5 that I measured once in a different much bigger room at a later time. Red line must have had more octave smoothing.
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Old 17th November 2011, 06:34 AM   #214
Starre is offline Starre  Sweden
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Thanks Salas, I have a few things to investigate before I am satisfied.
First, the middle part filling, then I will listen to the contribution from the reflex port to make sure it is as good as possible, but probably it is in a good starting point right now.
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Old 17th November 2011, 07:46 AM   #215
Starre is offline Starre  Sweden
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I will probably put the filter in the bottom, and also the terminals low on the backside. I wonder how much that volume loss affects sound. I can always put in the filter before glueing the baffle and test the result.
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Old 17th November 2011, 02:12 PM   #216
Salas is offline Salas  Greece
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For your shown filter's bulk I don't expect any appreciable volume intrusion. Just keep the coils away from the drivers magnets, and decouple its board elastically to the panel its going to be placed on.
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Old 17th November 2011, 02:27 PM   #217
Starre is offline Starre  Sweden
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Yes that is what I thought, it will be fine in the bottom, good distance from the woofer magnet. I will use the same glue I had for the filter parts, it is strong but a little elastic.
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Old 17th November 2011, 02:39 PM   #218
Salas is offline Salas  Greece
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What about screws and rubber grommets, so you could be free for moving it in any case?
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Old 17th November 2011, 02:46 PM   #219
Starre is offline Starre  Sweden
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That thought passed my mind, we will see about that. Tonight I will listen to the bass reflex port and its contribution, I will post a report tonight. I guess you want the most sound from playing 34Hz for duplicating your speakers, Salas.
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Old 17th November 2011, 03:07 PM   #220
Salas is offline Salas  Greece
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Ports play a tuned bass band plus some higher stuff escaping. Key is they blend well in the bass and whatever escapes from inside the box ain't too high SPL to color the rest noticeably in the far field.
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