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Wharfedale W70 - Advice


OpulentOne
(@opulentone)
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Hey @123toid I saw that you had purchased some W70s back in 2017. I am probably going to pick some up in the coming weeks. I was wondering if you've learned anything with yours, any tips on recapping if required. Anything at all really based on your experience.

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123Toid
(@123toid)
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First of all!  Excellent find!  I had to sell mine when I moved.  When you open them up, you will be surprised to see not much in there at all.  I can't remember off hand, but I think there was only one or two crossover components.  The rear does have a potentiometer which attenuates the tweeter, that needed to be cleaned.  I also changed out all the speaker wire.  

https://www.youtube.com/123toid


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OpulentOne
(@opulentone)
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@123toid 

I finally got my hands on it! Question about the capacitors. If I wanted to replace them would it be something like this:

 

https://www.parts-express.com/Audiocap-PPT-Theta-6.0uF-200V-Film-Foil-Capacitor-027-732

 

Or this 

 

https://www.grainger.ca/en/product/MOTOR-RUN-CAPACITOR%2C6-MFD%2C370V%2CRND/p/GGE6FLP3

 

20211007 103126
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20211007 104101

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123Toid
(@123toid)
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@opulentone 

You can use the Film and foil one if you want to.  Otherwise you can also use the Polypropylene cap

https://www.youtube.com/123toid


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OpulentOne
(@opulentone)
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@123toid thanks! 

 

I listened to them yesterday for the first time and wow! What a sound! It's definitely different than modern units but you can tell it's premium stuff for the 60s. 


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123Toid
(@123toid)
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@opulentone 

Absolutely. They really do have a very wide sound stage. Makes you want to build more speakers like them. The soundstage 15 where some of the first that I did in that would be somewhat similar. Similar in the essence that they use a large woofer. And there is something about using a large woofer that I really enjoy

https://www.youtube.com/123toid


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OpulentOne
(@opulentone)
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@123toid 

 

The one biggest difference I heard was listening to the Beatles and how they had separation between the tweeter and midwoofer on vocal harmonies that was like a mini stereo image inside the image. Because the drivers are placed horizontally instead of stacked. Lower voices were primarily in the mid woofers and the higher ones in the tweeter. Super cool!


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123Toid
(@123toid)
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@opulentone 

I agree. They are really nice speakers. I wish more people could have heard them. It's hard to find a good pair now. I'm glad to see that you were able to find some. And that you are enjoying them

https://www.youtube.com/123toid


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OpulentOne
(@opulentone)
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@123toid 

 

I'm keeping them conveniently in the middle of the northern Canadian boreal forest if you ever want a listen 😂


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123Toid
(@123toid)
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@opulentone haha! That does sound convenient... For you 😆. Actually sounds really nice. Although I I really love nature..

https://www.youtube.com/123toid


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TVOR-Ceasar
(@tvor-ceasar)
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Also, just a friendly hint about the caps in the crossover. Don't worry about getting the exact value (6 uF) and go for the 6.2 uF. The crossover is very rudimentary, but it does the job, and the slight difference in value will move the crossover point down only a few Hertz (Hz). I checked an old crossover table (I had linked it here before, but it's also on Parts Express community page), and the 6.0 at 8 ohm lists as 3200hz for x-over while the 6.2 calcs about the same.

Nice score on them. Here's to many more years of listening pleasure!🍷🥃🍹🍺

 

** Here's the link: https://techtalk.parts-express.com/forum/tech-talk-forum/43333-size-of-capacitor-vs-frequency-it-blocks

-Charlie
https://www.youtube.com/user/TheTrueVoiceOfReason


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