The Warm Audio Jet Phaser is a hyper-authentic recreation of the original famous pedal, accurate from the gooey
swirl of the audio circuit to the look and feel of the enclosure, except that it’s true bypass and far more
affordable and reliable than vintage units!
Warm Audio WA-JP Jet Phaser Vintage Phaser Pedal Features
Rebirth of a Classic
Faithful recreation of the original “jet” phase circuit
- Uses premium components throughout, including carbon film resistors and film capacitors
- True bypass operation
- Six modes: JET (1–4), PHASE (1–2)
- EFFECT/NORMAL and FAST/SLOW foot switches
- JET LEVEL, MODE, RESONANCE, and SLOW RATE knobs
- Gradual rate change when FAST/SLOW switch is pressed, simulating a rotary cab
- 1/4" Input and Output jacks
- DC ADAPTER/BATTERY switch
- Rugged steel chassis with attractive wooden side panels
The seventies were an amazing time, as bell-bottoms, chains and afros dominated the fashion scene and
the swoosh and swirl of phaser effects were everywhere on the radio. From the guitar work of David
Gilmour, Brian May and Eddie Van Halen to the trail-blazing keyboard stylings of Steely Dan, Herbie
Hancock and Paul Simon’s Richard Tee, it seemed like everyone was incorporating phasers into their
Of all of the designs available during that time period, one phaser pedal stood apart from the others due to
its flexibility, sound quality and addition of fuzz sounds, and it was immediately adopted by funk bass
pioneer Larry Graham as the core of his modulated sound with both Sly and The Family Stone and his
own Graham Central Station.
The Jet Set
The Jet Phaser contains six modes, with two labeled "PHASE" and four labeled "JET". The two PHASE
modes produce traditional phasing effects, with the first having moderate modulation depth for more
subtle sounds, and the second having increased depth for more exaggerated results.
However, the similarities to normal phase pedals end there. The four JET modes engage the "jet" (or fuzz)
effect, and that's when things get seriously fun!
There are four fuzz/phase combinations::
- Bright fuzz/shallow phase
- Bright fuzz/deep phase
- Dark fuzz/shallow phase
- Dark fuzz/deep phase
When the JET modes are active, the pedal's output level is controlled by the JET LEVEL knob. This
enables you to set up the JET modes as a boost, if desired—which could be perfect for solos!
The Jet Phaser also features a RESONANCE control that's available in all six modes, allowing you to dial
in varying amounts of filtered sci-fi craziness. Additionally, you get creative control of the modulation
rate: the SLOW RATE knob allows you to set the main modulation speed, but hitting the FAST/SLOW
foot switch always kicks the rate up to the maximum speed possible. It’s a cool design, because the
change from fast to slow ramps up and down gradually like an organ’s rotary speaker. Unlike most
phasers, the Jet Phaser can actually get “in-between” speeds by continuously hitting the FAST/SLOW
foot switch like organ players do!
The Jet Phaser’s true bypass operation makes it easy to incorporate into any rig, and the fact that it runs at
18V gives it high headroom and pristine audio quality (it can be powered with the included 18VDC
adapter or two 9V batteries). We already know it'll sound great on guitar, bass, and keys, but don't let that
stop you from slapping it on a vocal track or a drum bus - use your imagination!