Keep the groups of drivers in parallel, put those groups in series.
Mix and match to get your desired impedance.
Sim it in XSim with actual driver impedances and it will become clear.
The sim I uploaded has actual (though not yours) driver curves.
Look at all graphs to see what each driver gets.
Mix and match to get your desired impedance.
Sim it in XSim with actual driver impedances and it will become clear.
The sim I uploaded has actual (though not yours) driver curves.
Look at all graphs to see what each driver gets.
Read somewhere that certain glue could harm drivers... was it silicon?
Suggestion for suitable glue fastening the drivers ta a concrete baffle?
//
Suggestion for suitable glue fastening the drivers ta a concrete baffle?
//
I used silicon once to glue and seal drivers.
Silicon releases acetyl when drying, smells like vinegar, and it corroded the magnets on the drivers. They still work, but the magnets became all rusty.
Silicon releases acetyl when drying, smells like vinegar, and it corroded the magnets on the drivers. They still work, but the magnets became all rusty.
Broke the mold today. One got a little less concrete than the other because I decided to not follow my plan :-/ Anyways, they seem usable and stability seem quite good and I feel I can lift and handle them without to much angst for breaking/cracking. With drivers glued in place - went with Sikaflex - and baffles in their cabinet - ni problem. Had to do some work to remove excess concrete in form a little lip that came from the mugs used. At 18 holes, one thing to do becomes quite tiresome 🙂
I feel hope.
//
I feel hope.
//
Attachments
Quick consultation please. My plan is to glue tonight...
I have listened to each driver and measured R. R came out as the picture and Left and Right has the same distribution of R. The ones with a 1 or an 9 are 7,1 ohm and 6,9 ohm. None marked are 7,0.
Row of 3 is one set of paralell drivers and the upper 3x3 will be parallel to the lower 3x3.
Top row will be placed on top in the line, followed by next row of 3 driver etc.
So a 3 group with one driver being 6,9 will show a little higher output - so how to connect for most even power distribution over the line?
There are 4 drivers per speaker out of 18 deviating from 7.0, all to the leftmost column in pic.
In reality, will it matter??
Strongest from center:
1
0
9
9
0
1
or
"Distributed - floor bias..
1
0
9
1
0
9
"Distributed" - ceiling bias
9
0
1
9
0
1
Strongest from the ends
9
0
1
1
0
9
...?
I have listened to each driver and measured R. R came out as the picture and Left and Right has the same distribution of R. The ones with a 1 or an 9 are 7,1 ohm and 6,9 ohm. None marked are 7,0.
Row of 3 is one set of paralell drivers and the upper 3x3 will be parallel to the lower 3x3.
Top row will be placed on top in the line, followed by next row of 3 driver etc.
So a 3 group with one driver being 6,9 will show a little higher output - so how to connect for most even power distribution over the line?
There are 4 drivers per speaker out of 18 deviating from 7.0, all to the leftmost column in pic.
In reality, will it matter??
Strongest from center:
1
0
9
9
0
1
or
"Distributed - floor bias..
1
0
9
1
0
9
"Distributed" - ceiling bias
9
0
1
9
0
1
Strongest from the ends
9
0
1
1
0
9
...?
Attachments
Last edited:
I'd pick strongest from center... but I don't believe it matters much. In reality I just mixed and did not match.
Glued 🙂 but as you say, probably no biggie...
I tried imagining the mirroring and what it would mean.
//
I tried imagining the mirroring and what it would mean.
//
Like a military parade, nice row of syncron popping pistons : )
Those wires looks same as live wire for buildings, good taste for audio in my opinion if they single solid core.
Thanks being very productive and sharing.
Those wires looks same as live wire for buildings, good taste for audio in my opinion if they single solid core.
Thanks being very productive and sharing.
Single core they are and indeed intended for live wiring - 1,5mm2. Just leaning one baffle in the corner and listening to un-EQ music, I think this will be very fun. Thanks for all help and encouragement so far.
//
//