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 Leira Refurbishment Completed!! Nästa ämne
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ListeningEar



Registreringsdatum: 22 maj 2015
Inlägg: 16

InläggPostat: 2015-11-25 13:31:33 Svara med citatTill överst på sidan

I have asked the guy who makes the adapter rings to list a new ad on ebay for you so you can purchase direct from him. I am guessing that they will fit the post office package size of 'small parcel' so postage should be around 5.50 UK Pounds.

You are just looking into the Eikona drive at the right time it seems, with the 20% discount that makes for a nice discount Wink

You could experiment with leaving the old tweeters in place, look for any air escaping around that area as that will affect the tuning of the transmission line cabinet.

For cabling all you need is a very high quality copper cable, I don't believe in spending a huge amount but I also believe that cheap cable is not suitable either. I would avoid any silver wire or cables in your system as this will only ad to the systems brightness and with this new setup you don't need to enhance the higher frequencies in any way. High purity copper is the way to go.

The spikes I used will be ideal for you as they are an enclosed system so you will not mark any flooring they are placed on. I found a seller in Norway selling the exact same product as I used:

http://njal.no/Hovedmeny/Høyttalere/Høyttaler-tilbehør/Soundcare/Soundcare-høyttaler-spikes-Spike-1-M6-M6-gjenger148000-p0000000953

You will have to drill the bases and get some threaded inserts for these spikes to screw into but I am sure your local hardware store or ebay will sort that for you Wink

Best regards,

Craig

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Peace, love and music!
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ListeningEar



Registreringsdatum: 22 maj 2015
Inlägg: 16

InläggPostat: 2015-11-26 13:46:16 Svara med citatTill överst på sidan

Hi Wim,

Have PM'd you but here is the link to the adapters which you will require for the Eikona drives.
http://www.ebay.co.uk/itm/Tailored-MDF-Mounting-Frames-Speaker-Adaptor-Kit-Rings-/272057299431?#shpCntId

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Peace, love and music!
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Dynaco_WJW



Registreringsdatum: 13 juni 2011
Inlägg: 26
Ort: the Netherlands

InläggPostat: 2015-11-27 19:22:45 Svara med citatTill överst på sidan

Hi Craig,

I have send the seller of the rings a message. Will order these rings. Looking forward to restore the Leira's. I'm already thinking of how I will do the sanding, what kind of paint, spraying the paint or bij hand. What I can start with is choose the cabinets I want to use and already remove the filters and drivers.
Will start looking about the damping material. Nearby is a speaker repair centre, maybe they will have it.
I don't know yet the theory of the damping wool and the place of it. Found on the website of JJ Jordan articles about the principles, maybe here it is written.

Regards to you Craig and other readers.
We'll keep in touch.

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ListeningEar



Registreringsdatum: 22 maj 2015
Inlägg: 16

InläggPostat: 2015-11-28 08:02:00 Svara med citatTill överst på sidan

Hi Wim,

If you still have the original Rauna white paint finish do not sand it as you will be doing that for days! Use a hot air gun (paint stripping gun) and a scraper. Once stripped you should find that the concrete has quite a smooth finish so no sanding will be required.

There are probably going to be some holes and blemishes that will require filling but I would suggest you find a paint sprayer who specialises in furniture and MDF spraying as motor vehicle sprayers will most likely tell you that their paints will not take well to the concrete. A furniture sprayer will use a filler for any blemishes that their paint will not react to.

Hope that helps.

Best regards,

Craig

_________________
Peace, love and music!
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Dynaco_WJW



Registreringsdatum: 13 juni 2011
Inlägg: 26
Ort: the Netherlands

InläggPostat: 2015-11-29 15:34:10 Svara med citatTill överst på sidan

I was looking to the cabinets I have, which pair shall I take. One set had bad painting so I thought better to take this pair but the thickness of the concrete is not as thick as other pairs. So I think I will choose the pair who has the thickest wall. Maybe not necessary but that is my feeling. The original paint is OK but when the hole of the tweeter is closed it has to be painted at that place for sure. Mabe better to spray the complete cabinet. Next question is, do I have to remove the old paint. When this paint is good attached to the concrete than probably not. But, painting was not always good with the Rauna speakers so maybe better to remove the old paint. Of course there are several ways to remove paint. The method you decribed with a hot air gun, with a chemical paste of sanding. I think I will try first with sanding. I have a excentric sanding machine which operates very well. I have good experiences with this machine. Works better than sanding with a band (if you know what I mean). I don't know what will happen with the concrete using a hot air gun. Concrete will expand on the outer side so you will have tension in the material.
What material did you exacly use for filling the hole? What you told about how to close the hole was not fully clear for me. Can you explain again? What did you use at the back of the hole? Did you also made some kind of anchors for a better binding? drill small holes at the edge of the tweeter hole and put in some nails or metal wire?
I have been looking for wadding wool and found some. One new product is this:
http://www.twaron-angelhair.com/index.php?item=twaron-angel-hair&action=page&group_id=9&lang=EN
Maybe overdone? I don't know.

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Dynaco_WJW



Registreringsdatum: 13 juni 2011
Inlägg: 26
Ort: the Netherlands

InläggPostat: 2015-11-30 17:30:53 Svara med citatTill överst på sidan

Hi Craig,

Today I removed the driver from a Leira cabinet. I measured 150mm. The thickness of the concrete is 22mm. The wool inside feels like real wool. Can I use this wool again?
About the ring. The ring is outside 145mm and the hole is 150mm. How did you fill this space between ring and cabinet?

By the way, the cabinet on the photo is the cabinet which has been repaired very badly. I used this just for measuring, this cabinet will not be used for the Eikona drivers.

Regards,

Wim

Image

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ListeningEar



Registreringsdatum: 22 maj 2015
Inlägg: 16

InläggPostat: 2015-11-30 19:57:45 Svara med citatTill överst på sidan

Sorry Win extremely busy at the moment so no time to reply in full but the postage costs you have been quoted seem extremely high. Ask the seller of the rings to confirm how he is packaging them and what postage method. It should be no larger than a small parcel and standard airmail should cost 5.50 UK Pounds. I know this as I run a worldwide mail order company selling g records and CD's.

The rings need to be a few mm smaller to accommodate the adhesive, you want to use a good strong panel adhesive as the rings need a full ring of adhesive to provide a complete air tight fix.

You can reuse the wool wadding but remember that you need 350 grams per speaker.

Get some metal mesh for internal repairs and for affixing behind tweeter cutout then any concrete mix you use to seal the tweeter cutout can bond to the mesh.

Craig

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Peace, love and music!
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Dynaco_WJW



Registreringsdatum: 13 juni 2011
Inlägg: 26
Ort: the Netherlands

InläggPostat: 2016-01-27 19:39:42 Svara med citatTill överst på sidan

In the meantime I worked on my Leira's. Wadding is a bit of a problem for me.
I made a drawing of the Leira. In the middle you can see the baffle. On both sides of the baffle the is wadding material, glass wool. At the front of the baffle the glass wool is thicker. Behind the (Original) woofer there is real sheep wool, about 70 gram.

What did I do for the Eikona's:
I removed the glass wool at the front side of the baffle.
I placed the Original wool behind the Eikona's.

What is my question:
I had to use 350 grams, but I only have 70 grams....see photo. On the photo you can see that is quite some wool. Where do I put 5 times this amount of wool? In the front chamber?
Do I still need the glass wool at the back side of the baffle?

Image

Image

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ListeningEar



Registreringsdatum: 22 maj 2015
Inlägg: 16

InläggPostat: 2016-01-27 21:03:55 Svara med citatTill överst på sidan

Greetings,

The wadding should be distributed evenly between the two transmission line chambers not forgetting behind the driver.

When using real wool make sure you stretch it out a little so the fibres are not too tightly entwined (necessary only if using new wool).

Best regards,

Craig

_________________
Peace, love and music!
Användarens profilSkicka personligt meddelandeMSN Messenger
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