A great looking headphone Dac/amp combo that competes with the schiit uber stack. Lowest i know of was $500 from massdrop last year. Right now it is prime eligible on Amazon and no tax to california. Seems to be sold by SMSL.
Sanskrit Pro B Dac $168
*Optical, coaxial, USB and bluetooth input
Sanskrit Pha Amp $144
Sanskrit LPS Power Supply $63
Total is $375. The power supply is not necessary and will drop your cost to $312 if you skip it.