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About the MS-22B
The Yaqin MS-22B is a tube phono preamplifier that utilizes two 12AX7B tubes. It is designed to enhance the sound quality of vinyl records by providing a dedicated phono stage for moving magnet (MM) cartridges. The device operates on an AC supply of 115V at 60Hz and features dimensions of 17cm (W) x 20cm (D) x 12cm (H), with a net weight of 2.3kg. It includes an active RIAA equalization circuit to ensure accurate playback of vinyl records. Some users have noted that while it provides a pleasing sound, modifications can further improve its performance, such as altering the circuitry and adjusting the heater voltage for better tube operation.
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