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The KT66 is the classic British kinkless tetrode of QUAD II fame, with a big coke-bottle shape and rich, warm tone. Shuguang’s KT66 has been in production since 1997; the Treasure KT66-Z adds premium materials and the black bottle.
Lineup
KT66
Classic series – British-style coke bottle, warm and powerful.
KT66-Z (Treasure)
Treasure series with carbon-coated bottle.
Specifications
Click an image to view the full-size specification sheet.
📄 Shuguang Catalogue 2024 (PDF)
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*We also accept custom orders for factory-level burn-in, precision testing, matched pairs / quads, special grading and OEM requirements. For a quotation or consultation, please contact us here.