One advantage I like about the Digitech Vocalist Workstation EX, not found on the Voice Prism unit is its volume 'sliders' which make for convenient 'on the fly' adjustment especially during live performance.

I can't speak to vocal technique requirements of vocal harmonizer singing, but I appreciate the easy 'plug/play' and impressive results I get from both the Digitech Vocalist Workstation EX as well as from the built in vocalizer in the Tyros. No special adjustments or tweaking necessary. I had a chance to audition (a while ago) the TC Helicon Voice Prism and acknowledge that it sounds a bit better, but personally feel the gigging convenience of the built Tyros vocalizer outweighs the hassle of having to drag additional equipment & assoc wires/plugs around. In addition, being able to store & automatically call up the Tyros' 'vocalizer settings' via Registration is a BIG plus that I'm not willing to sacrifice. I may consider (in the future) the TC Helicon unit for use in the studio, but after reading Ziggy's comments, I'm definitely going to have to give the Voice Prism a more critical audition now before laying that kind of cash down.

btw: Tony (Ziggy), glad to hear you finally received the Digitech Workstation I sent you. I trust it arrived to you safely, as it was quite a long journey from California to Malta. - Scott