How do you describe the sound of a 5687 preamp

mozilla

New Member
Gurus,

How would you describe the sonic character of the 5687. I am planning to build a linestage preamp based on Knodo's M7 circuit.

I am only familiar with the sound of a 12au7 of a Foreplay on my ST-70.

I understand this is all system & circuit design dependent but any comparisons con the "general sound character" would be appreciated.

TIA
 
Excellant Choice

I'm not personally familiar with that type but from what I've read, it's a very good tube that has good availability and it's cheap! What more could you ask for. From what I gather the 5687 is somewhat dark or dull sounding but opinions like these are not going to be as important as your own evaluation. Remember a tube may sound different from one component or application to another. And of course, the vintage is another variable.

MikE
 
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