Little Bear Tube valve Phono Turntable RIAA MM Preamp preamplifier amplifier Ver2.2 for MM (Moving-MaganeticCartridge) turntable only.not support MC truntable Weight:1.65KG, Size:256*190*70mm(10.07*7.48*2.75inch) It's a pure valve phono preamplifier.sound warm and classics,more clear and ture sound restore. Product not 100% assemble. when you got package. you need assemble both panel on PCB board. and wire transformer to PCB board. then you can use it. easy work. do not solder any parts. just screw fix it. TOP NOTIC:For solve hum problems that some of buyers respond to us,follow is the suggesion:.when you listening the music, use your finger touch this GND point. if the hum come to lower. that's mean your T10 not connect to really ground. please re-connect it to really ground.that's important