corner horn and writing table

[hm]

new folded corner horn
free download
http://www.hm-moreart.de/99.htm and /95.htm
to fill up with bass
many fullrager constructions,
look the pics

AH 150qcm
AM 2,1 m 1340 qcm
AM 3 m, 1,5 qm !!
Prototyp driver
TB W69 1042

any comments?


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[DorinD]

Excellent folding and phaseplug technics. Good job!

 

[AndrewT]

Hi,
I have no foreign language, so here goes.
Do you have two exit mouths? One in the front and one facing towards the corner?
What effect does the corner have on the EXTERNAL horn flare?
Is AM2.1m the two mouth areas added together?
Is AM3m the corner flare exit mouth?

 

[hm]

corner horn

Hello Andrew,
right.
both mouths left and right
open in the corner at 2,13 m
than it opens greater than simulated
to 3 m approx. 1,5 qm,
so the horn ends not abrupt into
the room.
I listen to it 7 hours, it is not
so direct and punchi like the
alphorn but lighter, easier, more
transparent and a bit
more contur, there might be
also a frontloaded effect in
opposite to backloaded.

DorinD: Thanks

 

[Coolin]

Shouldnt you add a top plate so the horn path really extends to the front instead of going "over the top"of the cabinet ?

 

[hm]

coolin

klick the red arrow, right on S.1
than you get:
http://www.hm-moreart.de/96.htm
you see it worked like that.
the table plate is not shown in the pics.

 

[Coolin]

Ah-ha,

I didnt know you were an expert on horns already

What do you mean by "frontloaded effect" ?

I like transparent sound

Does this cornerhorn do bass better than the other shapes you have tried (natural bass reproduction)?
The mouth is very large so this might explain why you say less punchy than..


Regards,

Coolin

 

[hm]

coolin

it might be that the corner horn
make better contur and transparens
because the direct sound of the
driver by backloaded is lost.
You listen only horn.

I tested it already with a friend
fantastic sound, effortlessness,
no location of the bass, super.
i know only german language to describe.

with the HORN-sat with B 200 Visaton
excellent, when the HORN sats make 0,5
Watt impulse, i am getting afraid of my neighbour.

For me the best bass i ever constructed.
The box is only 196 L with a mouth with 1.5 qm !!

Next: measurement in a 80 qm room.

 

[Coolin]

Ok i see, this is your first frontloaded horn without direct radiated output.

Yes, please post response in large room please.

CO

 

[hm]

measurements

now first measurements
http://www.hm-moreart.de/97.htm

 

[Coolin]

Did you make a simulation in hornresponce?
Is it the same?

I would have expected it to go a bit lower.

Could you post a screen shot of the input page(numbers) of hornresponce if you have it?

Thanks,

Collin

 

[hm]

hornresponce

No, i didn´t simulated with hornresponce.

If you look the driver Data, e.g.
Hobby HiFi 05/2005
you see the driver gets very loud at 70 Hz
and above, this shows the presschamber
AH/Sd ist not high.

The measurement looks not so good as the alphorn
but the sound is a little bit more satisfied,
more contur, effortlessness, cleaner.
The better driver would be the
Peerless HDS 205 Nomex.

 

[hm]

measurement in 22 qm

astonishing measurement
in 22 qm
http://www.hm-moreart.de/97.htm