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Multi-Way Conventional loudspeakers with crossovers

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Old 16th December 2012, 08:56 PM   #41
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That was a fast build looks sci-fi too !!

Is the total area of the holes larger than the driver Sd. Otherwise the holes will behave like ports tuned too high in a miniscule "cabinet"
For the rear wave, only the low frequencies will be able to exit the holes and the mid-high would likely get attenuated too much , providing no dipole cancellation to the front wave.
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Old 16th December 2012, 09:18 PM   #42
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Yeah, the whole point of the build was to attenuate the beaming high frequencies, the ones that don't make it around the driver.....this will stop them from reflecting off of the wall, while letting the frequencies that cause dipole cancellation to cancel the font wave, retaining the null to the sides.
I will test tomorrow to see if it works.

Thank for the compliment!
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Old 16th December 2012, 09:25 PM   #43
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Looking good so far!

Kyle
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Old 18th December 2012, 01:01 AM   #44
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ok, they are up and running.
I haven't had time to measure, I just eq'ed by ear.
I will measure tomorrow. there is a huge null at the sides from what I can tell, even high frequencies! I think this experiment is working
They sound really great! (for stereo)
and yes, my desk is tiny....because it's not a desk. It's a piano bench!

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Old 18th December 2012, 01:04 AM   #45
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look at the size of the speaker wire! I had no idea they were that huge.
well, there is 4 wires in each sleeve.

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Old 18th December 2012, 01:32 AM   #46
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that is neat.
Like tamborines without the cymbals.

I wonder if the monitor messes things up.

race working well ?

truly inspiring.
You are a mover and a shaker here.
I'm sure I'm not the only one who looks forward to your projects.

Only 1,447 views.
That's not 1,447 different people is it ?

Norman
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Old 18th December 2012, 01:49 AM   #47
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Quote:
Originally Posted by norman bates View Post
that is neat.
Like tamborines without the cymbals.

I wonder if the monitor messes things up.

race working well ?

truly inspiring.
You are a mover and a shaker here.
I'm sure I'm not the only one who looks forward to your projects.

Only 1,447 views.
That's not 1,447 different people is it ?

Norman
Thanx Jon!
Yeah, I think they have like a Nordic kind of a look. Like something you would find in a shop in Stockholm or something.
Yes, the monitor changes the sound a little, not too much its partly in the null.
I'm not using RACE on this one, but I sure do miss it
I am surprised at the great clean bass, very balanced.
Of, course they have that exacting nearfield sound.....not my favorite.
I like reflections.
So, yeah....they sound like studio monitors. Mission accomplished!
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Old 18th December 2012, 01:52 AM   #48
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I do have to de-couple them from the desk though. Every time a big bass note hits....my keyboard looks like a trout in the boat!
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Old 18th December 2012, 05:19 AM   #49
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Melo, you are funny. I like you too.
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Old 18th December 2012, 06:52 PM   #50
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Hi Melo,
with the lower frequencies cancelled from the sides and nothing coming out of the back, these speakers would have a really narrow polar response. Even narrower than a monopole with large drivers. So no reflections at all from the sides or the rear...almost like listening in an anechoic chamber with only direct sound. Do they actually sound like a speaker in an anechoic chamber
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