YAQIN MS23B upgraded version of MS22B 12AX7B X2 Stereo Tube Phono Stage MS-23B is a Tube Phono Stage for use with MM or high output MI (Moving Iron) cartridge turntable for connection to either a pre- or an integrated amplifier. It comes with stereo outputs of 0.5 V and an active RIAA equalization. A DC filaments power supply guarantees optimal hum and noise reduction. Sound quality is excellent full in Class A, warm, silk-like smooth, but also precise, transparent and powerful over whole very wide frequency range with high dynamics, realistic, without coloration, music background calm and noise on very low level. The already excellent unit allows tube rolling and in this way as well as by other measures can be tuned to an absolute Highend Sytem. Power transformer is made in STALLOY, Japanese special audio steel of 0.35 mm in thickness , wiring consists of high-strength enamel-isolated pure OFC copper applied in a special coiling process. Further components are imported and of highest quality, audiophile capacitors, such as Japanese Nippon Chemi-Con capacitor filters, high-quality metallic resistors, all packed into a rigid, well-shielding and very durable aluminum enclosure with aluminum front panel.