Blackout Effectors Whetstone Analog Phaser

Price Paid: 
$265 U.S.


4 main control knobs: Feedback, Rate, Depth, and Level. 1 four position selector knob to choose from Normal, Pads (extended sweep time), Ring (ring modulator), and Fix (Fixed position). 5 mini toggle switches for choosing between: 2 or 4 Stage Phaser, Phased or Vibrato voiced, Symmetric or Asymmetric sweep, All Pass or Low Pass filter, and Shallow or Wide sweep. 1 footswitch for effect on / off and 1 bright pedal status LED. True Bypass. No battery connection. DC 9V-18V power input jack. A low current draw of 45 mA so virtually any standard 9V DC power supply with negative center pin will power it up.

Ease of Use: 

A highly versatile Phaser Effect Pedal. Able to recreate virtually any phase tones from vintage asymmetrical Leslie Rotating Speaker or Uni-Vibe types to the symmetrical phase tones of the '70s and '80s like the Phase 90, Small Stone, PT9, etc. The option of adding a more vocal "wah" tonality to the phased tone through use of the vibrato mode. The choice of "all pass" for a brighter tone that works excellent with humbuckers as well as single coils or "low pass" that produces a fuller and darker tone and adds a great deal of "body" to single coil phase voicings. A huge range of sweep depths and durations.


As with any effect pedal that utilizes mini toggle switches you have to use some care when positioning it on the pedalboard. An errant misplaced stomp could easily snap them off. The on / off footswitch on this pedal is well away from the mini toggles, but, the on / off control of a pedal positioned directly behind this one could create a problem.

Sound Quality: 
5 (excellent)
Customer Support: 

I've not needed support since my purchase of this pedal. Considering the number of options the Whetstone Phaser provides, the instructions are very simple to understand. I really haven't run into any problems or "road blocks" that would require contacting the company.


So far so good. I haven't had it long enough to really make an informed judgement. The company is relatively new, but, the quality of the build seems to be of a high standard.

Overall Rating: 
Average: 5 (1 vote)