Pimeta Gain Question
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WSikorski

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I just built and will be repairing a Tangent Pimeta. (see my "big oops" thread.)

What gain should I be using for a pair of Senn HD-580, 300 ohm, headphones?

Wayne
 
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bg4533

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Gain tends to be a personal thing. It also depends on your source and how loud you listen. If you search you should find quite a few opinions. A gain of around 3-4 is good for me. Some people think the stock gain of 11 is good.
 
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m0nKeY bUsiNeSs

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As bg4533 said it is personal. But I'll tell you what I have found.
My source has about a 1v output or so. I'm using HD-600s with pimeta that has a gain of 8.5 and I feel like it is too high. I'm probably going to change the gain to around 5 when i finish the amp.
 
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PeterR

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With a standard CD source I'd say about 3.
 
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peranders

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And I say 2-4 in gain and 4 if I want to recommend something but it's easy to change. The basic rule is not to have more than you need.
 
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While using a gain of 3 or 4 should be fine with the AD8620/10 opamp combo you may want to consider going higher if you think you'll want to experiment with opamp rolling. Some chips, like the OPA637 for example are not stable until a gain of 8 or higher.

My 0.02,

Nate
 
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WSikorski

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Thanks for the advice.

The only source i've tried so far was my iRiver H10.

I guess I'll have to hook it up to the CD before I decide on the gain.

W.
 
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