(15 votes, average: 4.00 out of 5)

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(15 votes, average: 3.80 out of 5)

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“The Tungsram are brighter on the high frequencies anda little coolerregarding the midrangeproducing accurate sonics without beingthe least bit sterile sounding in my applications.” Read

“Tungsram sounds much more precise, open, and clear, with more resolution top-to-bottom.” Read

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(19 votes, average: 3.89 out of 5)

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“The Siemens is energetic, precise, and dynamic, the tube I like to wake up a sleepy or softish vintage. Very quiet, with extended powerful bass.” Read

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(9 votes, average: 4.22 out of 5)

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(8 votes, average: 3.50 out of 5)

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(22 votes, average: 4.05 out of 5)

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” great sounding sub for 12AU7, low noise, sweet sound, great bass”

“like most RCA tubes does everything well, with a good natural timbre and sense of authority through the whole range, while also open and quiet.” Read

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(2 votes, average: 5.00 out of 5)

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“very good tube top to bottom – rivals the Amperex.” Read

“…neutral, clean school of sound and can “hit the spot” in many situations. ” Read

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(10 votes, average: 4.00 out of 5)

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(25 votes, average: 3.68 out of 5)

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Again 🙁 no reviews found on the web. General consensus that this is one of the best 12au7/5814 tubes. See our review…