Brand new from Tim at Retro-Sonic. You're looking at one professional piece. Wow! Super nice tones in there. The depth knob allows the player to back off the overall effect, adding just a modicum of phase or fully drenching the signal as needed. The depth knob is invaluable for running this in series with other effects. I tried this and a vibe, a chorus, a wah.... twas a dream.
At first I wasn't sure what to do with the level; I just left it fully ON. But after a while, especially with a big fuzz signal or OD, I found that cutting the level provided a nice break. It took the solo down to a nice reflective moment, while keeping it interesting via the phased signal. Great addition!
The speed is sensitive and provides a usable range. The faster speeds are tremolo-esque, but not entirely. The oscillations still retain the phase effect. There are other phasers of this size that stop shy of a cozy, zippy speed. Not this one.
Lastly, there's no loss of volume when turning it on. In fact, it may even become a wee-bit louder with the level pegged, but I haven't experimented enough to say for certain.
This is truly a remarkably clean, tone-producing tool. A great addition to the Retro-Sonic line.
(I hear there's an echo coming, too....)