The iFi Micro iPhono Fits In The Palm of Your Hand, But!
The gain circuit uses what the company calls "Class ATubeState® amplification using a combination of JFETs, op-amps and discrete circuitry, all Class A with no negative feedback. It also features 6 EQ curves for you to abuse including RIAA, Columbia, Decca and IEC.
Oh and the price is $399! Crazy, no? I brought one home from the show and will be trying ASAP!