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Audiostatic ES300RS schematic connection for diagram + segmentation
Audiostatic ES300RS schematic connection for diagram + segmentation
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Old 7th August 2017, 01:17 AM   #1
Geoneer is offline Geoneer
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Default Audiostatic ES300RS schematic connection for diagram + segmentation

Hi all,

I do own a complete Audiostatic ES300rs system just as parts. I need to make stators and connect the electronics to them.

Q's:
#1. Does anyone know about the segmentation of the ES300rs?

#2. Does anyone know if a resistance is used between the connector on the electronic-plate and the diagram / foil?



To knows:
- I did restore an ES100 succesfully
- I do own ES200 without resistance between plate and the foil
- My ES200 has no segmentation and play nice.

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Old 7th August 2017, 08:49 PM   #2
Andersonix is offline Andersonix  Sweden
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Audiostatic ES300RS schematic connection for diagram + segmentation
I cannot see the pic. Use "Manage Attachments" to attach pics permanently.
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Old 8th August 2017, 12:31 PM   #3
MJ Dijkstra is offline MJ Dijkstra  Netherlands
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- there is no resistor between hv output and mylar film. You may consider putting a neonoscillator. Works like an useful indicator as well.

- omitting segmentation sounds like a bad idea imho. The esl will present a more difficult load and directivity changes.
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Old 8th August 2017, 12:50 PM   #4
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Quote:
Originally Posted by MJ Dijkstra View Post
#1 - there is no resistor between hv output and mylar film. You may consider putting a neonoscillator. Works like an useful indicator as well.

#2- omitting segmentation sounds like a bad idea imho. The esl will present a more difficult load and directivity changes.
Thanks MJ Dijkstra!

#Q1: The question is what the resistors needs to be for the segmentation on the ES300?

#Q2: I'm thinking about to use 4 wires for the high frequention region. Just like described here: https://audio-creative.nl/projecten/...-de-revisie/9/

#1. Is right. There is a 10Mohm resistor at the back of the print. So this is ok for me now. I did avoid this on my prototype (ES100) and my amp (NAD 2100) did heatup a lot. The sound also from the stator did have a lot of distortion.

#2. Segmentation is a good thing! I did remove the segmentation my prototype (ES100). Now the sweetspot is very small. I will put in the segmentation again and build this up in a nice and proper way.

Further on in Dutch:

Leerpunten: 1. De afstand tussen stator en folie kan kleiner dan 't nu is. Exacte maten weet ik nu nog niet. Zal deze gaan meten tzt |

2. Met de fhn de folie een beetje strakker krijgen is mogelijk. Daarmee wordt 't laag wat beter en strakker. |

3. Segmetering is wel fijner dan geen segmetering. Zal dit weer toepassen met nieuw setje weerstanden |

4. 10Mohn weerstand tussen de hoogstroom op de folie is wel noodzakelijk. Dit om te versterker in bedwang te houden. De NAD 2100 ging duidelijk in vervorming op beide kanalen, ook al had ik dat maar bij 1 kant aangepast. |

5. Echte volume krijg je er pas goed uit met een flinke versterker. Dit moet worden anders door de afstand tussen stators en folie te verminderen. |

6. Laag komt er wel mooi uit, maar het is niet nadrukkelijk aanwezig zoals bij een subwoofer. In combinatie met 2 subs is het wel compleet, maar heb je nog niet echt voldoende volume. Bij lage tonen gaat de NAD ook in 'soft clippen' en schiet in beveiliging.

On facebook I do have a project-page about my stuff:

https://www.facebook.com/groups/Elek...0801004459510/
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Old 10th August 2017, 10:30 AM   #5
MJ Dijkstra is offline MJ Dijkstra  Netherlands
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Q1; I guess these are the same resistors as ES100. Panel of ES300 is the same as ES100

Q2: 4 wires worked good for me in the ES200. Es300 has somewhat more power at the low end so if it sounds too polite you may consider 6 wires. Its a kind of tweaking it to your taste and the rest of your audio chain.

The 10Mohm resistor is a safety resistor of the high voltage supply and doesnt affect power requirements of your amplifier at all. It should be on the circuitboard.

A fohn is not useful to increase the mechanical tension of Mylar. A heatgun (verfstripper, NL) works. But not by increasing tension, unless you didnt apply any tension before at all.

ES300 has an in build bass boost with corresponding larger excursions. Making the distance smaller between mylar and stator is not recommended. Some DCI models have even larger spacings.

If the ES300 is in good condition it will play loud. A 50W (at 8Ohm) amplifier is sufficient to drive these close or beyond their max. Audiostatics have not very low impedances at high frequency (unlike martin logan) so you dont need a Krell or monster amp.
Low output may indicate problems.
Dont know about NAD, whether it accepts capacitative loads or not.


Bass: difficult to beat dynamic speakers in this regard. Thats why I switched to hybrids (logans) You get higher efficiency as well.
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Old 16th August 2017, 01:02 PM   #6
Geoneer is offline Geoneer
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hoi M.J. Dijkstra,

Thanks for your clear answers! Ofcourse we understand this very clear. I do have a set of coating from you still here for the ES300's. Also the mylar is from you. I've bought the set from a guy from Purmerend. He didn't have time for the project to get the ES300 alive. So I give this a try.

I did check the whole proces with an old set of ES100. They do play now, but not realy loud in comparison with a set of small Final I have in my office. I will try them with new foil an coating.

@ ML Dijkstra: Do you still have the coating and mylar for sale?
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Old 17th August 2017, 05:48 PM   #7
MJ Dijkstra is offline MJ Dijkstra  Netherlands
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Quote:
Originally Posted by Geoneer View Post
hoi M.J. Dijkstra,

Thanks for your clear answers! Ofcourse we understand this very clear. I do have a set of coating from you still here for the ES300's. Also the mylar is from you. I've bought the set from a guy from Purmerend. He didn't have time for the project to get the ES300 alive. So I give this a try.

I did check the whole proces with an old set of ES100. They do play now, but not realy loud in comparison with a set of small Final I have in my office. I will try them with new foil an coating.

@ ML Dijkstra: Do you still have the coating and mylar for sale?
Yes, mylar (100 cm wide) and coating is still available. The HTEC coating now available is an improved version of the EC-coating.
Efficiency of the es100 is probably lower than a final hybrid.....
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Old 10th November 2017, 10:05 AM   #8
Geoneer is offline Geoneer
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@MJ Dijkstra:

I did use the EC coating on a ESH100. After the 1st layer of coating this did not perform well. Low sound volume and distorted sound. So I did do a 2nd layer on the ESH100 yesterday. I hope after a few days of drying and loading the result will be better.

Do you have a 'way of working' with the EC coating also? On my bottle of EC coating there was no recipe anymore..
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Old 10th November 2017, 04:37 PM   #9
MJ Dijkstra is offline MJ Dijkstra  Netherlands
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Quote:
Originally Posted by Geoneer View Post
@MJ Dijkstra:

I did use the EC coating on a ESH100. After the 1st layer of coating this did not perform well. Low sound volume and distorted sound. So I did do a 2nd layer on the ESH100 yesterday. I hope after a few days of drying and loading the result will be better.

Do you have a 'way of working' with the EC coating also? On my bottle of EC coating there was no recipe anymore..
There has been a lot of experience with EC-coating on audiostatics. It has been proven to work stable and well, even after 10 years of use. All ES-models are quite old speakers. Most of them only need new Mylar film with new coating but some have other problems as well. If you send me your private email I send you a new instructionguide. It has useful tips regarding the high voltage connection and other issues.
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