I am the one holding it up. Blame me. Basically want to make sure that a good external power supply is available when the Black Widow ships, which should be in a few weeks.
I got one board together in a chassis as v0.99 in preparation for final production and assembly. We also blew up another one testing various power supplies. We are very close to choosing a power supply implementation that won't break the bank. I'd rather kill myself than make customers pay something ridiculous. We are trying four-five very different circuits. I would say the power supply is transformative for the BW, but that could be a matter of personal sensitivities. BW is very much a BJT type amp, clear sounding, clean lines, fast, but with an atypical twist of an organic sound / smooth treble. In other words, it has the EC house sound.
The BW with a close to production external power supply will be at the May 2 meet in San Francisco. Zdfx will take it from there as loaner for peeps on CS.
Price of the BW with the universal power brick will be $799. We are very much trying to make sure the external PS will be less than half of that. No guarantees.