First off, let me say that I have not been satisfied with either the phase 90 or the nano small stone because both pedals sweep through your low end frequencies regardless of how you set them. If I was plying in the higher register, low end loss was never a problem with the nano stone. But otherwise, I'd lose precious bottom and the band's volume would fluctuate whenever the phaser would sweep through my lower frequencies. I've used the digital PH-3 and had similar problems.
The Source Audio Tri-Mod Phaser lets you adjust the range of the frequency sweep. You can easily set it to sweep through higher frequencies and consequently, the phase effect is more pronounced. You can really hear the full sweep when it's not sweeping through less audible lower frequencies. It's also really easy to dial in a traditional phaser sound if you so desire.
There's also a 2-notch setting that can create some fairly convincing vibe sounds. I hadn't anticipated ever buying a vibe but this is a cool feature and I'll definitely explore it.
As far as I know, feature wise, this beats any digital phaser on the market. You have controls for frequency, envelope of LFO depth, rate (attack and decay in envelope phase mode), phase steps, and the option to manually calibrate steps as well.
The depth knob is immensely deep and useful.
Envelope phasing is absolutely incredible. I've quite heard anything quite like it. It's very responsive to your playing in a way that was immediately reminiscent of my FX25 (a band-pass filter). Depending on where you have the frequency knob set, you can create some envelope filteresque sounds or some completely whacky original sounds, especially if you run the phaser after your envelope filter, synth, synth combo, fuzz, etc. I am definitely going to use this feature a lot, at least as frequently as I use my envelope filters on their own. The sound quality is excellent, but you can get this effect to sound organic or decidedly digital depending on the settings you choose.
The LFO phasing is great as well, and the range of speeds available is totally on par with the Nano Stone and might actually exceed it. Again, the depth and frequency knobs are your best friends here.
I was looking into boutique-level phasers in the hopes that they might solve my low end loss problem, but I think this pedal was a much better alternative solution for me. It's extremely versatile and has excellent sound quality with its 56-bit processors. You really can't even compare it to the PH-3 at all and it sounds just as good my nano stone if I set it right.
I would highly recommend this pedal for anyone dissatisfied with their current phaser and looking for a more tweakable and versatile solution.
Here's a brief clip I put together today. I had about 5 minutes of free time in the studio so I picked a setting that I really like and that I think is really practical. I'm using the envelope phase mode with a low depth and fairly brisk attack/decay. I apologize in advance for the sloppiness.
http://www.soundclick.com/bands/page...?bandID=972288
Clips:
SA TMP:
http://www.soundclick.com/bands/page...songID=7918071
Gemini Drive -> SA TMP:
http://www.soundclick.com/bands/page...songID=7918077
MXR BlowTorch -> SA TMP:
http://www.soundclick.com/bands/page...songID=7918072
EHX BMS -> Boss CE-5 -> SA TMP -> Duncan Shape Shifter:
http://www.soundclick.com/bands/page...songID=7918075
Maxon AF-9 -> SA TMP:
http://www.soundclick.com/bands/page...songID=7919311