Glad to hear an expert confirm my impressions. I paid $800 for a new unit by keeping an eye on ebay. I really like the combo LED/LCD display--the LED has numbers you can read from far away, while the LCD provides detailed information--including cute humanoid icons to indicate the harmony voicings.

Too bad the aux in is Mono. I wish it were stereo. If it were, I could plug my Karma into it and avoid using a mixer. My Roland KC-300 have multiple ins, but then I have no stereo headphone mix. So I have to add a mixer.

BTW: There is now a software vocal harmony plug-in for Cubase VST called "voice machine" made under license from TC-Helicon.