Beautiful over drive, a lot of highs and great bass address.
strong + powerful, very quiet, with GOLD pins
Like the 12AT7, with Gold contacts.
GOLD PIN Version of the JJ ECC83S Recommended when sockets with goldplated contacts are used.
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Marshall KT66 Quartett Gold Label
Marshall KT66 Duett Gold Label
Marshall EL84 Quartett Gold Label
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Tube Amp Doctor 6550A-STR Duett
JJ Electronic 6550 Sextett
Tube Amp Doctor 6550A-STR Sextett
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Sovtek EL84 Oktett
Sovtek EL84 Quartett
Sovtek EL84M Oktett
