Arion SPH-1 Stereo Phaser

The Arion SPH-1 Stereo Phaser is an analog phaser pedal with stereo output. RockBoard's PedalPedia describes it as adding "a sense of speed to your sound," and notes that it "can also create spinning speaker sounds," so it covers both standard phasing and rotary speaker style effects from one box¹. If you are new to the effect, a phaser sweeps a series of notches through your signal, producing the familiar whooshing sound heard on countless rock and funk records; see the site's Phaser Pedals page for how the effect type works as a whole.

What it does

The SPH-1 is a phaser first: it produces the sweeping, jet-like phase shift that players use for everything from subtle movement to full psychedelic washes. Arion also positions it as a rotary speaker simulator, meaning the stereo outputs can be used to suggest the spinning motion of a rotating speaker cabinet¹. That makes it a two-in-one effect for players who want classic phasing and a leslie-style swirl without carrying two pedals.

Because the circuit is analog, the effect is generated by phase-shifting stages in the analog domain rather than by digital processing¹.

Power and setup

The pedal runs on 9V DC, center negative, and draws 17mA¹. That current draw is low enough to sit comfortably on a pedalboard with a standard supply, alongside other modulation effects such as a chorus or flanger.

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