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Electro Harmonix Small Stone Analog Phase Shifter Phaser Pedal w/ 9V Battery

Image 0 of Electro Harmonix Small Stone Analog Phase Shifter Phaser Pedal w/ 9V Battery

Electro Harmonix Small Stone Analog Phase Shifter Phaser Pedal w/ 9V Battery


Electro Harmonix Small Stone Analog Phase Shifter Phaser Pedal w/ 9V Battery Part Number: NSMALL

  7 available Add to Cart


Get the sound that made the Classic 1970 Small Stone famous. Generates thick sweeping phase shifting with liquid transparency. Feedback color control adds a tingling swirl. Blues players dig the Stone's rapid rotating speaker effect. Country players add tasty seasoning to their chicken pickin'. Metal-heads dig its jet plane swoosh.

Quick Specs

- True bypass 
- Variable rate control allows slow and smooth to rapid edge frequency sweeps 
- Color switch adds Q and thins the moving comb filters 
- Tough and compact die-cast chassis 
- 9-volt battery included Optional 
- 96DC-200BI power supply available

The Small Stone was first manufactured back in the early 70’s making it one of the first compact phase shifters on the market. To this day, the Small Stone is still the pedal to use when musicians want a fat, warm analog phase shifter.


Connect your instrument to the INPUT jack. Connect your amplifier to the AMP jack. Please note that whenever a plug is inserted into the INPUT jack, the Nano Stone is ON and it is draining current from the battery.

The STATUS LED will light up when the Nano Stone is in effect mode. When in True Bypass mode, the LED will be off. Use the FOOTSWITCH to toggle between effect and True Bypass mode.

The RATE control adjusts the speed of the phasing sweep, turn RATE clockwise for a faster sweep.

The COLOR Switch changes the sound of the phase shift between a full and robust phase shift in the DOWN position to a more pronounced instance phase shift in the UP position. When in the UP position, notice how the Nano Stone carves into the frequency spectrum hollowing out the sound. Fundamentals and harmonics glide in and out for an extremely pronounced shifting effect. Return the COLOR switch to the down position and notice the fullness.


Power from the internal 9-volt battery is activated by plugging into the INPUT jack. The input cable should be removed when the unit is not in use to avoid running down the battery. If a battery eliminator is used, the Nano Stone will be powered up as long as a wall-wart is plugged into the wall.

The barrel connector on the front of the Nano Stone is for a 9-volt battery eliminator capable of delivering 100 mA of current. The inner ring of the 9-volt battery eliminator must be negative, the outer ring positive. The unit’s battery may be left in or taken out when the eliminator is in use.

To change the 9-volt battery, you must remove the 4 screws on the bottom of the Nano Stone. Once the screws are removed, you can take off the bottom plate and change the battery. Please do not touch the circuit board while the bottom plate is off or you risk damaging a component.

The input impedance presented at the Input Jack is 100 k-ohms. The output impedance at the Output Jack is 15 k-ohms.