the intelliphase's "touch phase" ACTIVATES a pretty standard LFO driven phaser depending on level -- it's more like "effect ducking"
whereas the other two (EP-1 and polyphase) use the instrument's volume envelope to modulate ("sweep") the phaser
Yup. That is very much the case with the Intelliphase. However, with the speed and threshold controls set accordingly, it is possible to get a very similar effect as those found in the EP-1 and Polyphase. Although they achieve the effect differently, the end result can be similar, IMO and IME.
As for the overall phase tone, I would describe it as the "vocal" type as opposed to the "thick and chewy" type, which is what I was hoping for. The "Speed" range seems to be about average as compared to your typical Phase 90 or Small Stone pedals, neither incredibly fast nor super slow. The "Feedback" control really adds a lot of intensity to the effect but even at low feedback settings, I wouldn't call the Intelliphase subtle. It has a midrange presence that sounds pleasing throughout the whole range of the sweep. At the bottom, where some phasers either drop or boost frequencies, the Akai stays even and smooth, even with "Feedback" and "Depth" cranked. Nice! Slapping and popping while in the "Hard Touch" mode is awesome, IMO. Playing fast and busy lines gets an almost-kinda-pseudo envelope filter type sound making it the best "70's funk" phaser I have had the pleasure to play. I need to spend a lot more time with this pedal. I haven't really played with signal chain placement, dirt pedal combinations or with a band, so some of these findings will likely be different for other people. YMMV and such.........
I haven't found any issues with tone suck, clipping or volume drop/jump, but the housing
is quite large. As Chris V., mentioned, it does feel a lot less solid and hefty as one might expect from such a large enclosure, but the knobs, switches and jacks are all solid feeling and firmly mounted. The battery compartment is also very easy to get into.............without removing the bottom!
Overall, I will definitely be hanging onto this pedal. I could easily justify having it on the same board as my Psilocybe because they sound so different, and for $55.00, I feel like I stole it.