Features: Elevateds your sound experience with T9 HiFi preamp, featuring double 6E2 magics eye tubes for dynamic visual feedbacks and 6A2 vacuum tubes delivering warm, natural sound with MM/ phono compatibility. This versatile preamp combines pluggable tube socket for customizable sound, gold plated RCAs/3.5mm outputs, and adjustable treble/bass controls to optimize sound for amplifiers or headphones (16-300Ω). for audiophiles and vinyls enthusiasts studio grade performances, it seamlessly integrates with turntables, PC, or mobile devices for professional home sound setups. Perfect for enhancing vinyls playback in living room, refining digital music in studios, or creating immersive listening with its double color backlit display and low noise circuitry. The machined aluminum chassis ensures durability and electromagnetic shielding, while intuitives bias/gains knobs let users fine tune 6E2 tube responsiveness for balanced stereo output. Specifications: Materials: Aluminum alloy Color: Black Size: 154x87mm sound input: Stereo RCAs/Rec sound Output: Stereo RCAs/3.5mm Headphone jacks Headphone impedance ranges: 16-300Ω Input levels: 0.775V Output levels: 1.5V Input impedance: 100K ohms signals-to-noise ratio: ≥106 decibels Frequency response: 20Hz-20KHz Working voltages: DC12V (≥1A) Package Includes: 1Set Stereo Preamp note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.