Any A/V geeks on fedi who can recommend a mini preamp that can support a 3.5 mm input as well as RCA? I'm looking for something to run my turntable and Chromecast Audio through. Right now they connect to my wife's Bose Wave system through the AUX port (I've got a cheap a/b switch to alternate the input source). But, without a preamp I need to crank the volume waaay up and I'm missing full stereo sound (one side is so quiet that it's almost absent...not sure if it's the right or the left).