my front end is also computer based, and my wants paralleled yours - "The ability to deliver killer midrange with female vocals, a large soundstage and clearly defined instrument separation are must-haves". i would strongly suggest the Wyred 4 Sound DACs.
i've had a Wyerd DAC1 running for about a week now - previously, i owned Weiss Minerva and Musical Fidelity Tri Vista... the Wyred is my favorite of the three. seems to combine the best traits of my prior DACs - has the detail and resolution of the Weiss, while maintaining the extraordinary soundstage and realism of the Tri Vista. it's a fantastic DAC, and a ridiculous bargain at its price.
i've had a Wyerd DAC1 running for about a week now - previously, i owned Weiss Minerva and Musical Fidelity Tri Vista... the Wyred is my favorite of the three. seems to combine the best traits of my prior DACs - has the detail and resolution of the Weiss, while maintaining the extraordinary soundstage and realism of the Tri Vista. it's a fantastic DAC, and a ridiculous bargain at its price.