Personal Monitor sized speakers : are ESL worth the troubles??

[JinMTVT]

i never actually thought that anyone was under any obligations in here

but i was kinda desperate to see 80 views and 0 replies


i think that electrostatics aren't quite popular around here!

well too bad..let's build some and have fun

[blu_line]

Missed your post in the first place.

I build a couple of full ranges a while ago.
They do realy sound sweet ! The low frequencies are a trouble.

You proposed to have panels of 30x80 cm.
There is a width over length factor to achieve the best results.
And as i can remember it is 1:7 to 1:8.
A panel of 80 cm does not have to be 30 cm wide. 10cm Is mor likely !

you can e-mail me for more info/questions if you like !

grtz

Simon

[Variac]

Simon:

Actually , those of us (most of us? ) that don't know much about this would like to see your answers too!!!

[JinMTVT]

Originally posted by blu_line
Missed your post in the first place.

I build a couple of full ranges a while ago.
They do realy sound sweet ! The low frequencies are a trouble.

You proposed to have panels of 30x80 cm.
There is a width over length factor to achieve the best results.
And as i can remember it is 1:7 to 1:8.
A panel of 80 cm does not have to be 30 cm wide. 10cm Is mor likely !

you can e-mail me for more info/questions if you like !

grtz

Simon

well i don't see why there would be a factor to keep at

just look at the almost perfect square 1950-60s ESLs ..

i think that people construct high ESL just for the convenience VS performance ..

it would be pretty crazy to build an ESL that is 8 feet high and 8 feet wide


my point wiht 30cm + wings is to push the dipole effects as far down as possible on the hz scale
10cm will definitly have to get corrected alot under 1KHz
i think ..and i do not wish to correct that much of it!

the lower end will be assured by a multiple driver sub setup
no problems here for me!


what kind of transformers u used?
polirazing voltage VS D/S ratio ?

i am trying to design a tensionned wire type right now..
might go that route, but with a completly different style from what others did !

for the transfos i've been looking at the ESL transfors from plitron

[Steve M]

Hi,

Seeing I'm currently using various speaker technologies including Bass Reflex (Proac 2.5 clone & Fostex 206E in 20L cabinet); Infinite Baffle (expensive Yamaha NS1200 Monitors); Open Baffle experiments with Fostex & Raven ribbons; and Electrostatic speakers ( see the Mackinlay ESL-3 a kit spkr at www.eraudio.com.au ) .

I would recommend to any beginner that in order to get instant gratification - go for the Fostex 206E ($84USD ea A Madisound) in a 20L BR box ! You get elctrostatic-like sound without the cost, hassles of construction or size limitations. Also, the Fostex is a crossoverless point source driver that requires no tuning or tweaking for the beginner. You will need to sort out the bass later, which in my case is currently TL subs or a pair of 150L BR boxes with the superb Eton 11" hexacomb driver.

I have to say though that of the speaker technologies mentioned above, my favourite is the electrostatic Mackinlay ESL-3. It has lightning fast transients and leaves the others behind for sheer detail retrieval ... it's not perfect either, but to my ears and taste in music the best I've heard!

Just my two cents worth...

Regards,

Steve M.

[Steve M]

more pics ...

Steve M.

[Steve M]

more pics...

Steve M.

[blu_line]

what kind of transformers u used?

I used transformers from Final 1.03.
http://www.final.nl/
They sold left overs on a Elektor/Audio Event a couple of years a go.

polirazing voltage VS D/S ratio ?

I think, it has been a while, i used about 2mm, since i wanted a full-range.

i am trying to design a tensionned wire type right now..

Thats is what i have done. Took a lot of time to tension each wire.
I wanted to segment the stator and used a aluminium u-profile, with holes drilled in it at every 4-5 mm, to quide the wires.
Unfortunenatly the profile cut into to isolation and gone was the segmentation.

Take good care of the wire spacing, since this will influence your output tremendously.


grtz

Simon