Making a separate follow up thread on the Eminence Eden drivers bargain, I just received more drivers and I have some ideas what to do with it.
Original thread: https://www.diyaudio.com/community/threads/eminence-acquired-by-b-c.403321/page-4#post-7472727
Im thinking a 100l 2x12 sub 60x60x40cm and a 1x12+horn top 60x40x40 just to get some experience with the drivers.
Most likely will need a midrange at some point but without any data sheet and no measuring tools/skills this will be all by ear and trail and error.
Some more pics below. Will update as I progress. The drivers seems decent enough by look and feel. Can’t wait to test for resonances.
Ideas are welcomed. Was thinking about a large open baffle too as these drivers seems to have a high q.
Original thread: https://www.diyaudio.com/community/threads/eminence-acquired-by-b-c.403321/page-4#post-7472727
Im thinking a 100l 2x12 sub 60x60x40cm and a 1x12+horn top 60x40x40 just to get some experience with the drivers.
Most likely will need a midrange at some point but without any data sheet and no measuring tools/skills this will be all by ear and trail and error.
Some more pics below. Will update as I progress. The drivers seems decent enough by look and feel. Can’t wait to test for resonances.
Ideas are welcomed. Was thinking about a large open baffle too as these drivers seems to have a high q.
Attachments
Just a small update for those who might be interested.
I'm still brainstorming ideas but after testing the tweeters I realize I might need to find some HF solution as they sound terrible.
It might be possible to tame them with a very high HPF and add a midrange but these are probably designed specifically for bass guitar amps with some trademark resonance peaks for character.
Not ideal for hi-fi.
So what I'm considering is:
- Open baffle: all three 12s in an vertical column/array and some larger horn at top. Unfortunately this will be very tall speaker which wont fit very well in my room. The pro of this is that it would be a very simple project that would allow me to get some experience with the drivers before doing something more complicated.
- JBL Everest style: only two of the 12s in a horizontal setup with some horn at top. Very wide speaker, also not ideal. Have no idea what horn I would go for. Would possibly also need a super tweeter then.
- Two cabinets per side: 2x12 push-pull sub in a 50l monkey coffin, and same sized top with one 12 and some mid and tweeter JBL 4312 style but tilted 90 degree. Very complex as a 4 way speaker. Would possibly need to be active.
- Tannoy buckingham / JBL 4350A large monitor style ie 80x80cm: two 12s at the bottom as bass in a horisontal setup and another 12 as mid above then some tweeters "here and there".
Other ideas?
Im also wondering about what frequency might two 12" cause interference comb filtering given a small distance between them? Ideal crossover for me would be maybe 200Hz LPF for the two 12s I use for sub and 200-2000 BPF for the last 12 midbass. Lets say there is a 36 cm between the center of each driver.
I'm still brainstorming ideas but after testing the tweeters I realize I might need to find some HF solution as they sound terrible.
It might be possible to tame them with a very high HPF and add a midrange but these are probably designed specifically for bass guitar amps with some trademark resonance peaks for character.
Not ideal for hi-fi.
So what I'm considering is:
- Open baffle: all three 12s in an vertical column/array and some larger horn at top. Unfortunately this will be very tall speaker which wont fit very well in my room. The pro of this is that it would be a very simple project that would allow me to get some experience with the drivers before doing something more complicated.
- JBL Everest style: only two of the 12s in a horizontal setup with some horn at top. Very wide speaker, also not ideal. Have no idea what horn I would go for. Would possibly also need a super tweeter then.
- Two cabinets per side: 2x12 push-pull sub in a 50l monkey coffin, and same sized top with one 12 and some mid and tweeter JBL 4312 style but tilted 90 degree. Very complex as a 4 way speaker. Would possibly need to be active.
- Tannoy buckingham / JBL 4350A large monitor style ie 80x80cm: two 12s at the bottom as bass in a horisontal setup and another 12 as mid above then some tweeters "here and there".
Other ideas?
Im also wondering about what frequency might two 12" cause interference comb filtering given a small distance between them? Ideal crossover for me would be maybe 200Hz LPF for the two 12s I use for sub and 200-2000 BPF for the last 12 midbass. Lets say there is a 36 cm between the center of each driver.
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Some progress here now.
I build some tops earlier which are not complete but I have decided on a Fane 5" midrange and a Monacor DT-25N tweeter going forward here as the Eden horns sounded awful - probably needs lots of taming crossover which I wont bother at this point.
Currently using a compression driver while building the subs/bass-bins and doing the assembly of mid and tweeter.
Many things in parallel... Keeps my mind busy.
I thought they look cool and plan the same for the subs.
And Ive started the bass-bins but struggle with bracing this large monster of a box.
Whether this ends up as a 4 way monster setup or a 2,5 way with only the 2x12 and a horn who knows, I change my mind everyday about things...
Thought I just share some pics.
More will come as a progress with the whole thing.
Anyway learning a lot from building these large boxes.
I will not recommend oak as Ive done here, they bend and move and crack and what not.
Cant wait to start testing.
I build some tops earlier which are not complete but I have decided on a Fane 5" midrange and a Monacor DT-25N tweeter going forward here as the Eden horns sounded awful - probably needs lots of taming crossover which I wont bother at this point.
Currently using a compression driver while building the subs/bass-bins and doing the assembly of mid and tweeter.
Many things in parallel... Keeps my mind busy.
I thought they look cool and plan the same for the subs.
And Ive started the bass-bins but struggle with bracing this large monster of a box.
Whether this ends up as a 4 way monster setup or a 2,5 way with only the 2x12 and a horn who knows, I change my mind everyday about things...
Thought I just share some pics.
More will come as a progress with the whole thing.
Anyway learning a lot from building these large boxes.
I will not recommend oak as Ive done here, they bend and move and crack and what not.
Cant wait to start testing.
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Some progress on the bass bins. A little baffle paint and oak stain and we’re good for the first testing. I’ve made these so I can chose different layout horizontal top mounted drivers vs vertical center mounting m by having baffle cutouts both front and rear depending on how I plan to install them in my room. Hard to explain but it will show as I progress further.
Thanks
Thanks
Baffles painted with industrial blue similar to the Heresy inspired tops. Not sure about this 12mm plywood will do, so far I have only negative experience with ply compared to MDF, pine and oak.
