Not entirely sure of how many hours are on this as it came as an extra with an amp I recently acquired. It has no noise once warmed up and sounds NICE! Price is shipped in the U.S.Currently out of stock at The Tube Store. They retail it for $40 + ship/tax. Trade feedback from other sites: [Head-Fi Feedback] https://www.head-fi.org/members/soundapprentice.404624/classifieds-feedback [US Audio Mart Feedback] https://www.usaudiomart.com/userfeedback.php?user_id=59588
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