Legato 3 - Look ma! No caps! - Page 2 - diyAudio
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Old 22nd February 2011, 12:26 PM   #11
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Quote:
Originally Posted by fred_com View Post
OMG! This is a great news Russ! Thank you for this!

does this means that it can replace Ventus that is used like Bal2SE converter?

Thanks,
Fedor
Your welcome. Actually motivation was my own desire to eliminate coupling caps.

As for using this in place of Ventus, yes you can, but remeber Ventus is really a different type of circuit, and more of a standalone module.

Cheers!
Russ
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Old 22nd February 2011, 12:31 PM   #12
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Quote:
Originally Posted by NicMac View Post
Russ,
You also seem to be using a new type of filter caps on Legato 3. What are they?
Cheers,
Nic
Those are Epcos metal films. Remember that the module in the picture is a prototype, with parts from my personal stock. Kit parts will be a bit different.

I used 2.2nf at both the comp cap and he filter cap. I am very much liking that combo. We are also using new 2-ohm FETs. I will talk more about those later.

Cheers!
Russ
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Old 22nd February 2011, 12:47 PM   #13
back is offline back  Greece
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nice but i have a question.

how much is the output impedance?

i have legato 1 and i like it better with the buffer.

i assume this one will not have?
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Old 22nd February 2011, 12:50 PM   #14
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No, it will not have one, the balanced characteristics are the same as the Legato 2.

If your setup needs a buffered balanced output you could simply use two Legato 3 configured mono.
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Old 22nd February 2011, 01:26 PM   #15
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Default "Uggh"

Quote:
Originally Posted by ichiban View Post
Uggh! Will I be able to mod my newly purchased v2 into this configuration?
I share this sentiment as I just finished assembling my V2 only to learn there is a V3! There never seems to be a good time to jump in!

So is a retrofit possible?
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Old 22nd February 2011, 01:36 PM   #16
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There is nothing wrong with V2. Enjoy it.

When you see the schematic (will be available soon - not yet) you will see pretty easily how to modify Legato 2 to null DC.
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Old 22nd February 2011, 02:04 PM   #17
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OK, I've just ordered a Legato (together with a Buffalo II & other stuff). When it arrives, presumably in April when the Buffalo's due, will it be the V3 do you think?
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Old 22nd February 2011, 02:10 PM   #18
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No - Legato 3 is not available to order yet.
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Old 22nd February 2011, 05:28 PM   #19
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Originally Posted by Russ White View Post
I suspect some of you will be very glad to know I have reworked Legato a 3rd time. This time is pretty significant in that there are no coupling caps *at all* - zero - zilch. For those of you craving the purest possible bass and mids. This is it.
Good news.
When is it expected to be available for purchase?
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Old 22nd February 2011, 06:31 PM   #20
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Brian and I will have to work out the logistics, but I would think in the next month or so.
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