I'm building an active 3-way in my car.
I now have 10" Pa midbasses, 95-98 dB/W/m. I want to be able to add another pair later. I would want to cross over the 10s at 500Hz or so, can be higher, can be lower.
I am planning on buying the PRV d280ti with a Dayton H07E Waveguide.
I would cross off the PRV at 1,5-2,2kHz.
Now I just need a mid-range in between. Because the 10s are in the doors, so beaming is a problem.
The smaller the better, but I have come to the conclusion that a 6" would be minimum to get 95dB efficiency, or maybe 3x3" on each side.
Now I have a limited budget of 60€ to a max of 100€ for the midranges.
I have 2x200W for the 10s and 4x150W@4Ohm for mids and highs.
I now have 10" Pa midbasses, 95-98 dB/W/m. I want to be able to add another pair later. I would want to cross over the 10s at 500Hz or so, can be higher, can be lower.
I am planning on buying the PRV d280ti with a Dayton H07E Waveguide.
I would cross off the PRV at 1,5-2,2kHz.
Now I just need a mid-range in between. Because the 10s are in the doors, so beaming is a problem.
The smaller the better, but I have come to the conclusion that a 6" would be minimum to get 95dB efficiency, or maybe 3x3" on each side.
Now I have a limited budget of 60€ to a max of 100€ for the midranges.
I have 2x200W for the 10s and 4x150W@4Ohm for mids and highs.
I have heard bad things about closed-back midranges, but good things about the eminence Alpha-6cbmra.
Closed back would be easier because, no box, and higher SPL.
They are a little too expensive in Europe, but I just found the Celestion TF0615MR, is it any good? Can I cross it over at 500-600Hz?
Or should I get 2 or max 3 of the Faital 3" fullranges? Their sensitivity is 89-90dB and two would be 93dB. They would be easier to fit also than 6".
Or just open-back 6" mid? I can get a pair of Beyma 6"G40ND for 100€?
Closed back would be easier because, no box, and higher SPL.
They are a little too expensive in Europe, but I just found the Celestion TF0615MR, is it any good? Can I cross it over at 500-600Hz?
Or should I get 2 or max 3 of the Faital 3" fullranges? Their sensitivity is 89-90dB and two would be 93dB. They would be easier to fit also than 6".
Or just open-back 6" mid? I can get a pair of Beyma 6"G40ND for 100€?
Any respected driver manufacturer will work fine when properly processed.
The small Faital's are really nice too.
The small Faital's are really nice too.
Yeah they would all work, when I eq them down.
But only the more expensive open back midranges can reach a consistent 95dB.
I need that sensitivity to keep up with 2x10s and a compression driver.
I just want to know what can handle that, play clear and sound good.
As I said, I've heard many say closed-back isn't good, or that they must be crossed far above Fs.
Is this true? I understand with a passive crossover the Fs is problematic, but I have a DSP for that, but does it distort or sound bad near Fs?
And if someone has heard the celestions?
The small faitals are very good, but I would need 3 per side and I wonder how a line-array would work?
But only the more expensive open back midranges can reach a consistent 95dB.
I need that sensitivity to keep up with 2x10s and a compression driver.
I just want to know what can handle that, play clear and sound good.
As I said, I've heard many say closed-back isn't good, or that they must be crossed far above Fs.
Is this true? I understand with a passive crossover the Fs is problematic, but I have a DSP for that, but does it distort or sound bad near Fs?
And if someone has heard the celestions?
The small faitals are very good, but I would need 3 per side and I wonder how a line-array would work?
PRV 5MR450NDY is great. I also like B&C 6MDN44. Mount them with a small rear chamber stuffed with fiberglass. Now you have a sealed back midrange. PVC pipe or sports cone works well.
They both look nice, but are a little out of my price league. I mean 100€ for both.
I would buy used, (like the beyma 6"G40ND I mentioned) but there aren't many selling used "PA" mids here of good quality.
I know I can just build an enclosure, but these are going in a car. I have to fit them either under the sail panels or in the dash corners and build out of fiberglass and resin. So if I don't need an enclosure, that means easier install, less vibrations and more space.
Still If I were to find the perfect mid to be open-back, I'll go with that. Just don't understand why not more people are using closed-back for the SPL and simplicity.
I would buy used, (like the beyma 6"G40ND I mentioned) but there aren't many selling used "PA" mids here of good quality.
I know I can just build an enclosure, but these are going in a car. I have to fit them either under the sail panels or in the dash corners and build out of fiberglass and resin. So if I don't need an enclosure, that means easier install, less vibrations and more space.
Still If I were to find the perfect mid to be open-back, I'll go with that. Just don't understand why not more people are using closed-back for the SPL and simplicity.
Great midrange for cheaps is 3FE25 or TC9FD. Mount as infinite baffle. Add some melamine foam behind the driver on hard surfaces to reduce back reflection.
I think real closed back mids have too small of a back chamber and they sound “too closed” almost like they are muffled.
I think real closed back mids have too small of a back chamber and they sound “too closed” almost like they are muffled.
Yeah I've looked at the 3FE25.
It's very sensitive to be a 3", but the sensitivity still isn't enough to keep up.
I would need at least 2 per side to get a 93dB sensitivity and I would need 3 per side to meet the power target that I have to give to them.
The compression driver is 110dB efficient and the 10" mids are 95-98dB and I plan to add another pair, so +3dB.
What do you think? How would a line-array work in a car?
Any other way of getting 95dB+ midrange?
It's very sensitive to be a 3", but the sensitivity still isn't enough to keep up.
I would need at least 2 per side to get a 93dB sensitivity and I would need 3 per side to meet the power target that I have to give to them.
The compression driver is 110dB efficient and the 10" mids are 95-98dB and I plan to add another pair, so +3dB.
What do you think? How would a line-array work in a car?
Any other way of getting 95dB+ midrange?
