Hello
I'm trying to make a 2-way project with a crossover:
Speakers:
1. Vifa DX25BG60-04 (4 Ohm)
2. Vifa NE180W-04 (4 Ohm)
Case options:
~20-22L
Cabinet project:
SEAS "The Mimir"
Based on the project:
2way bookshelf and crossover
I created a project, but I think it's not perfect at all:
Do you have any ideas what could be improved here?
THX
I'm trying to make a 2-way project with a crossover:
Speakers:
1. Vifa DX25BG60-04 (4 Ohm)
2. Vifa NE180W-04 (4 Ohm)
Case options:
~20-22L
Cabinet project:
SEAS "The Mimir"
Based on the project:
2way bookshelf and crossover
I created a project, but I think it's not perfect at all:
Do you have any ideas what could be improved here?
THX
Kinda looks like the port tube and tweeter magnet are going to be occupying the same physical space, or very close. 🙁
jeff
jeff
Hi, I'm not sure why this thread didn't receive many responses.
It's not necessary to copy the Mimir cabinet as-is, as these are different drivers needing their own crossover, and without true measurements on baffle, the best one can do is simulation. Then again there are only so many ways to make a box for a 6.5" 2-way.
I had a quick look at the drivers. The NE180W has two frequency response peaks at around 1khz and 5khz, and the DX25 has a rising response from 10-15khz. My thought would therefore be to target a 4th order acoustic response with some respective notches.
I'm no expert, but here is a rough sim that is a little "flatter" with a target SPL of around 88.5db; crossover at 1.8khz. It may give you some ideas.
The impedance drops rather low, given you also selected the 4ohm versions.
It's not necessary to copy the Mimir cabinet as-is, as these are different drivers needing their own crossover, and without true measurements on baffle, the best one can do is simulation. Then again there are only so many ways to make a box for a 6.5" 2-way.
I had a quick look at the drivers. The NE180W has two frequency response peaks at around 1khz and 5khz, and the DX25 has a rising response from 10-15khz. My thought would therefore be to target a 4th order acoustic response with some respective notches.
I'm no expert, but here is a rough sim that is a little "flatter" with a target SPL of around 88.5db; crossover at 1.8khz. It may give you some ideas.
The impedance drops rather low, given you also selected the 4ohm versions.
Attachments
Thank you very much.
Great answer.
If you have time, please see my main project - AN-E Project
Now he is the most important to me. Thank you.
Great answer.
If you have time, please see my main project - AN-E Project
Now he is the most important to me. Thank you.
Had a look. I see the same problems. This is nothing like the AN E except using the cabinet plan and driver size.
AN uses a very high >90db sensitivity driver with a minimal crossover with shallow slopes. This Visaton is 83-84db when filtered, so it's just very difficult to make it work with this Wavecore tweeter. I don't think these drivers go together at all, not without lots of crossover components or DSP.
AN uses a very high >90db sensitivity driver with a minimal crossover with shallow slopes. This Visaton is 83-84db when filtered, so it's just very difficult to make it work with this Wavecore tweeter. I don't think these drivers go together at all, not without lots of crossover components or DSP.
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A quick and dirty option:
1) Make a very basic crossover that simply splits the signal - no level matching, notches or anything like that.
2) Use free software for everything else - level matching and EQ (Equaliser APO is one example).
Measure and adjust. Listen a lot. See if you like the result.
If you can't get an enjoyable result this way, you probably need to start over - you won't be able to fix what you have by adding an expensive 20 component passive system that struggles to do the same thing as the software.