HoneyComb Speakers

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#21
enclosure

Hi,

Just going through the earlier post on the honecomb speakers.

Sorry for not being communicative. Little busy with my travelling.
Can you suggest me some exact suitable enclosure for the honey comb speakers.

I just think it is difficult to manage a baffle for the honeycomb speakers after managing to get the speakers. Because if we plan up with mdf it will be quite bulkier and cannot think of any material for the same.

What do you think Navin,Mark & Keltic


avguy
 
#23
The plastic diaphram as it is called is made of a similar plastic to what is used in the retail packaging of a CD, not a CD case but what it comes in at the record store that you have lots of trouble cutting open to get the CD case out! It is skinned in an aluminized film that is very thin but strong. The 12" woofer used a 2cuft box in the sb-700 and the mid in a 1 litter cup.
 
#24
enclosure for honeycomb

Hi,
That will be very nice of you if you give me the dimensions of the box for the honey comb speakers.

Now really it is bugging me as to whether go for building the enclosure for the honeycomb or thinking of other options.


Avguy
 
#25
Conventional flared cone speakers actually do better than you might think in some ways when reproducing a sound wave, since the speed of sound in most solid materials is several times that of the speed of sound in air. So, with the right cone angle, the sound propagating to the edge of the cone arrives there at the same moment that the sound from the center of the cone near the voice coil propagates through the air to the same point axially does. With a shallower cone profile, some limited approximation to a spherical sound source is even achievable.

That being said, I'm still a fan of larger voice coils for drivers because they tend to push cone breakup modes higher in frequency. I think that a 12" driver with a 4" voice coil is potentially comparable in its breakup mode performance to that of a 8-9" driver with a 1" voice coil.
 
#26
honey comb speakers are introduced by matsushitha the parent company of National, Panasonic and Technics. its used in many high fi portable stereos as AFD(Accoustic Flat Diaphram) speakers.
honey comb is attached to normal coned speakers. sound is excellent. as i know it's ontroduced in 1985~87.
 
#29
Hi, well they look flat as a pancake to me

Anyway, honeycomb refers to the material used - it is a stucture with cells very similar to what honeybees make, hence the name
When you laminate material on either side it gets very rigid, and it is used everywhere when you need huge strength combined with exstreme lightweight

ETON drivers are honeycomb I think, and they are not flat at all

And theese interesting FALL drivers are flat too, but might not be honeycomp and probably too expencive

http://www.bentaudio.com/index2.html
 
#30
The Speaker I had used

Hi,

The one which I had owned quite long time was the speakers which had plastic enclosure very thin there were metal finish grills in the front and the cone looked concentric. Not the kind of speakers which can be seen in the links given above. The sad part is I do not remember the model of those speakers from Technics.


Regards,

Avguy
 
#32
Material for honeycomb speakers

Hi Tom,

Thanks for that information on the material for making the cone but i was talking about the whole speaker looking like that, here the material which you have mentioned is like the structure what we are talking about. But it will be difficult to put that on a material and use it for the cone of the driver. right. So we have to match the material on to which the fibre has to be mounted and there is a challenge to fix the fibre on that material. So dont think this will work out.


Avguy
 
#33
I have a pair of these with the drivers in perfect shape. I bought them on a whim to see the flat cones 🙂

I don't think they are SB-10 but

They are a little on the bright side and the porting is way below where it should be, like they decided to tune it to 20hz no matter what it did to the rest of the speaker.

The woofer is a flat honeycomb plate over and short cone to a regular speaker VC. The mid is a mystery to me.

My take is that these could be re-tuned to be pretty nice sounding speakers as the measurements are OK if you take out the lousy XO.

I need to get rid of these to free up space. I am in the DC area, NOVA. I paid $20 and would take that as a donation or you can have them if $20 is a big deal for you.

Interesting design.

P
 
#34
Re. Technics HoneyComb Speakers [part1/9]

Hi avguy

I kept on forgetting to bring the info I have at home to post here (I post from an internet cafe), but I have finally remembered and brought it. The problem is that the gifs are too large to post here. I am building a website where I will put them and as soon as I am done I will post the address here.

Enjoy,
Deon
 
#37
honeycomb apeakers

yes, it called as honey comb speakers. or AFD(Accoustic Flat Diaphram). Made by matsushitha, parent company of National,Panasonic and Technics. It used in National's Quality built Portable Stereos(with detachable apeakers of 30~60Watts) too. sound is good. and gives heavy bass.

But i'm not sure weather it's available seperate unit or not.
of course they will deliver speaker only(withjout enclosure) as part. contact paras electronics show room(as they have branches in mumbai and almost all major city of india).

Rahim
 
#39
honeycomb speakers handling frequencies

Hi,

Wish you all guys a Happy & Prosperous New Year 2008.

Sorry for my incommunication


Yes Navin those are good and have wider frequency response. Infact the ones we use to play was like playing a 3 way floor standing speakers. The dynamics were apt and with good resolution too.


Avguy
 
#40
I just bought a set of SB-m5's in decent shape..but the drivers are mint.

Which means I can test them. And..also use them as a platform for testing phase plug designs, etc. Testing that midrange should be fun. The tweeter looks like one heck of a nice little unit.
 
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