【Suitable For MM and MC Cartridges】The AIYIMA T3 PRO is our first phono preamp to utilize 4 pcs Op-Amps and support multiple resistance adjustments. It also is the first Phonograph preamp to suitable for MM and MC cartridges 【Front-Sided Gain Control】It offers support for both MM and MC cartridges and comes with 0-39db gain settings to be switched on the front panel 【 Impedance Settings Adjustable】Eight variable input impedance settings are available to adjust to any MC cartridge(Not suit for MM cartridge), This provides customers with a wide range of options and the ability to change the sound signature to their preference 【The Unique Exterior Design】Using aluminum/metal housing material is not only aesthetically pleasing, but also prevents vibration and electromagnetic interference for superior sound quality 【Professional Phonograph Preamplifier】AIYIMA T3 PRO MM Phono Preamp Only support MM/MC Phono single input(Other Audio signal inputs not supported),The T3 PRO's RCA audio signal outputs can be directed to an active speaker or home audio amplifier 【What's Included?】AIYIMA T3 PRO Package included AC Power adapter, It is easy to use "Climate Pledge Friendly" Certified by Amazon — Empowering Carbon Neutrality Goals.Voice for the Planet, Purity in Sound