The boxes we use tend to not need BSC, so i i tend to prefer the series connection with a shunt cap. This decreases excursion at the bottom by a factor of 4, and the exact placement of the filter is much less critical.
At frequencies above the quarter wavelength of the driver centre-to-centre distance combing starts and gets worse as you go up un frequency. The graphs look horrid, but Toole has shown that our brains expect it and have mechanisms that make it less consequential to the ear/brain. If there wasn’t that tolerance no one would like line arrays or big planars which have lots of comb filtering. So, another situation where you have to listen and decide.
Very good explanation. So comb filter effect is more a theoretical than a practical issue.
I am listening to magnepan for several years. If comb filtering aplies also to planar speakers, I am not sensible for this.
I am listening to magnepan for several years. If comb filtering aplies also to planar speakers, I am not sensible for this.
It depends on your hearing acuity, your hearing training, listening distance (as you move further from the speaker combing shrinks), and room.
dave
dave
Next steps.
Inserted the magnets. Tried to push them not too deep into the wood to keep their maximum power.
Not really invisible under the paint.
At the end I'm satisfied with the finish.
Not pro but I don't need to hide the speakers.
Inserted the magnets. Tried to push them not too deep into the wood to keep their maximum power.
Not really invisible under the paint.
At the end I'm satisfied with the finish.
Not pro but I don't need to hide the speakers.
Attachments
So,
How does it sound?
@Spassgeneral
Thank you for this first class design.
I am really satisfied.
Bass is deep and tight. Very accurate bass lines. Mids and hights are crystal clear.
Very balanced sound over all.
Curious to hear what will be when the drivers are run in for about 50 to 100 hours
By now I can say, well worth the effort.
Compared to finished high end speakers a real bargain.
How does it sound?
@Spassgeneral
Thank you for this first class design.
I am really satisfied.
Bass is deep and tight. Very accurate bass lines. Mids and hights are crystal clear.
Very balanced sound over all.
Curious to hear what will be when the drivers are run in for about 50 to 100 hours
By now I can say, well worth the effort.
Compared to finished high end speakers a real bargain.
More like a measure of hearing acuity.
Like people recognizing cat’s expressions it is likely the portion of the population that can conciously detect this is small and tied to hearing acuity and training.
Scott seems to be a lowest common denominator guy.
If you can hear it, it is a problem, if you can’t it isn’t. If as you listen it starts to bother you, it means your training is getting better.
dave
Like people recognizing cat’s expressions it is likely the portion of the population that can conciously detect this is small and tied to hearing acuity and training.
Scott seems to be a lowest common denominator guy.
If you can hear it, it is a problem, if you can’t it isn’t. If as you listen it starts to bother you, it means your training is getting better.
dave
I’m not sure. I haven’t heard a line array i like (something has sounded wrong with everyone — except for Terry’s focused array, and with a 12’ listening distance i did not really hear an issue with a twin CHR70 box. On the other hand, we did not think the twin FF85k was as good as the single one.
dave
dave
Thanks a lot, I am seriously considering, it seems a great idea to use on wood. Was it easy enough to get uniform?
Nice, another set of hybrids! Now I really need to start building mine, because we just moved and our living room looks so empty without any speakers 😀
So you used the 8mm magnets under the paint? Have you tested them with the front grill already? How do they hold up? I need to get some magnets for my build also, but still wondering what size to get. I love the looks without the grills, but I'm a bit worried about our cats poking at the drivers.
So you used the 8mm magnets under the paint? Have you tested them with the front grill already? How do they hold up? I need to get some magnets for my build also, but still wondering what size to get. I love the looks without the grills, but I'm a bit worried about our cats poking at the drivers.
Finished at last.
Hmmmmmmm.....
May be i will shorten the screws.
But then it's really done.
Hmmmmmmm.....
May be i will shorten the screws.
But then it's really done.
Attachments
Last edited:
I love the look of the hex grill, but you might find it becomes an auxilury radiator with high levels of bass (and these shurely should be very capable in that respect.
dave
dave