hello forum,
i was offered some farely cheap accuton drivers... 4 midbass c-158-8-085 and 2 woofers S220-6-221. i wasnt really planning a hifi build, but i guess its too good of an offer to pass, so ill build 2 speakers for my room...
i will either get 2 of the midbasses and go for a 2-way build (maybe something similar to the mundorf ma30),
or go 3-way... in case i choose the 3-way option: would it make sense to get all 4 midbasses, or just 2...? im not sure if the 2 s220s can keep up with 4 c158s or if a 1-1-1 setup would be more balanced?!
cheers, lisette
i was offered some farely cheap accuton drivers... 4 midbass c-158-8-085 and 2 woofers S220-6-221. i wasnt really planning a hifi build, but i guess its too good of an offer to pass, so ill build 2 speakers for my room...
i will either get 2 of the midbasses and go for a 2-way build (maybe something similar to the mundorf ma30),
or go 3-way... in case i choose the 3-way option: would it make sense to get all 4 midbasses, or just 2...? im not sure if the 2 s220s can keep up with 4 c158s or if a 1-1-1 setup would be more balanced?!
cheers, lisette
Hi lisette,
Yes you would need 2x woofers for each mid. If you make a let's say, a D' Appolito configuration you will be dampening the mids more than 6dBs in resistors.
Yes you would need 2x woofers for each mid. If you make a let's say, a D' Appolito configuration you will be dampening the mids more than 6dBs in resistors.
You can have the sattelites MA30 type and have the 2 woofers in an active channel with a plate amp type also instead of a standard passive 3-way.
all pretty cool ideas, ty. however i think 2 MA30s is probably the way to go for me, my room is just ~20m^2, a bass extension seems kinda overkill :/ i might just resell the other drivers or just get 2 c-158s...
now i will try to recreate the crossover mundorf designed for the ma30... seems to be a -6db x-over at 3450Hz with 2 notch-filters (1 at 3450 for the tweeter and one at ~3200 for the midbass)
i found this partlist and diagram:
https://i.imgur.com/hz0HAOW.jpg
i don't understand the wiring of the components yet, will try to figure this out now, any help would be appreciated... the only other info i have is : "Elektrotechnisch ist das Layout der MA30 Frequenz-Weiche ohne parallel verschaltete Bauteile rein seriell und für Bi-Wiring bzw. Bi_Amping ausgelegt", which translates into something like "the layout of the x-over comes without parallel parts in a serial layout for bi-wiring/bi-amping"
cheers, lisette
now i will try to recreate the crossover mundorf designed for the ma30... seems to be a -6db x-over at 3450Hz with 2 notch-filters (1 at 3450 for the tweeter and one at ~3200 for the midbass)
i found this partlist and diagram:
https://i.imgur.com/hz0HAOW.jpg
i don't understand the wiring of the components yet, will try to figure this out now, any help would be appreciated... the only other info i have is : "Elektrotechnisch ist das Layout der MA30 Frequenz-Weiche ohne parallel verschaltete Bauteile rein seriell und für Bi-Wiring bzw. Bi_Amping ausgelegt", which translates into something like "the layout of the x-over comes without parallel parts in a serial layout for bi-wiring/bi-amping"
cheers, lisette
I guess it's a series crossover then. I would go for the/a 3 way with woofer or the two mids with tweeter anyway.
when i design a simple series crossover with 2 notch filters i use 3 capacitors, 3 coils and 2 resistors. probably another resistor to dampen the tweeter... mundorf used an extra coil and 3 extra resistors. any idea how they could be used in this crossover?
Mundorf MA30
It must be something close to this.
It must be something close to this.
Attachments
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one more question: im pretty sure i can see a 5.6 μF condensator on the board but not in your diagram... are your numbers slightly different maybe?
cheers, lisette
EDIT: ah i'm stupid, forget what i just wrote XD
cheers, lisette
EDIT: ah i'm stupid, forget what i just wrote XD
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Inductors
L1=0.33 CFC.14V RDC=0.13 (Ohms) Equiv.Diam 1.6mm
L2=0.68 CFC.12H RDC=0.15 (Ohms) Equiv.Diam 2.0mm
L3=0.47 CFC.12V RDC=0.12 (Ohms) Equiv.Diam 2.0mm
L1=0.33 CFC.14V RDC=0.13 (Ohms) Equiv.Diam 1.6mm
L2=0.68 CFC.12H RDC=0.15 (Ohms) Equiv.Diam 2.0mm
L3=0.47 CFC.12V RDC=0.12 (Ohms) Equiv.Diam 2.0mm