Pioneer DJ TORAIZ AS-1


Monophonic analog synthesizer


About this item



Pioneer DJ TORAIZ AS-1

Develop unique sounds

The second musical instrument in our TORAIZ range, the AS-1 is a monophonic analog synthesizer that brings new creative possibilities to the studio and the stage. Its intuitive controls include parameter knobs that let you make both subtle and dramatic changes to the tone of your music to create your own personalized sound. Plus you can use the touchpad-style keyboard and slider to manipulate sounds during performances.

The TORAIZ AS-1 is driven by a fully programmable, true analog synthesis engine based on the discrete analog circuitry in Dave Smith Instruments Prophet-6 synthesizer. It also inherits 7 on-board effects from the Prophet-6 synth as well as a brand-new digital distortion.

Key features

  • Collaboration with Dave Smith

    Working closely with Dave Smith himself, we have created a synth that produces powerful analog sound. The TORAIZ AS-1 is an ideal addition to the setups of professional and aspiring producers.

  • Prophet-6 analog sound

    The AS-1 is based on the same analog filters as Dave Smith’s renowned Prophet-6 synthesizer. It has 2 voltage-controlled oscillators (VCO) with continuously-variable triangles, sawtooth, and pulse wave shapes. Sculpt your sound using the 2 voltage-controlled filters (VCF), a 4-pole, resonant low-pass filter that can self-oscillate, and a 2-pole, resonant high-pass filter.

  • Full programmability

    Use the TORAIZ AS-1 to create one-of-a-kind sounds using 2 VCOs, 2 VCFs, and VCA, 2 EGs, and 1 LFO, then save each sound and its parameter settings as a program so you can instantly access it later.

  • 495 presets

    The inspiring 495 preset programs each have a different sound and 64-step sequence that can be edited separately. You can also save up to 495 of your own programs in the 5 user banks.

  • Prophet-6 FX

    Be creative with the Prophet-6-derived dual FX engine and use a single effect or pair 2 together to add extra texture to your sounds. FX includes Bucket Brigade Delay, Distortion, Ring Modulation, Chorus, and Maestro Phaser.

  • Keyboard & scale mode

    The TORAIZ AS-1 will make sure your performance is in perfect harmony as you perform the sounds you create with the touchpad keyboard or change the notes assigned to the keys with Scale Mode.

  • Slider

    Add dynamic changes to your performance by using the slider to manipulate 7 different parameters. Change the pitch of 2 oscillators, adjust the amount of FX, and more.

Other Features


Be ready to experiment: perform a repeating chord pattern and change it in real-time, try out different scales, match scales with a track during playback, and more.

64-step sequencer

Give your performance the edge with the 64-step sequencer. Step recording of patterns, changing the musical key, editing the sound without editing the pattern – it’s all possible.

Creative DJ setup

Create even more complex patterns by connecting the TORAIZ AS-1 synth to the TORAIZ SP-16 live sampler via MIDI. Or take it to the booth and connect the sampler to your DJ setup via Pro DJ Link: The CDJs play the track, the TORAIZ SP-16 adds loops and one-shots, and the TORAIZ AS-1 generates unique analog leads.

Sound Editor LE

Use the Soundtower Inc. Sound Editor to view the details of your programs in a single graphical interface and experiment freely by editing the parameters directly on your PC or Mac. Watch the video here.


Sound Generation

Analog synthesis


99 programs x 10 banks (5 factory banks, 5 user banks)

* Each program includes its own sequence pattern
* Able to set up to 13 favorite programs can be registered


10.53 in


2.7 in


7 in


3.09 lb

Power Supply

Included Accessories

  • AC adaptor
  • Power Cord
  • Quick Start Guide
  • warranty

Synthesis Parameters

Oscillator 1

  • Frequency
  • Pulse Width
  • Sync (Off, On)

Oscillator 1 Shapes

  • Triangle
  • Sawtooth
  • Variable-width Pulse

Oscillator 2

  • Frequency
  • Fine
  • Pulse Width
  • Key Follow (Off, On)
  • Low Frequency (Off, On)

Oscillator 2 Shapes

  • Triangle
  • Sawtooth
  • Variable-width Pulse




  • Oscillator 1 Level
  • Oscillator 2 Level
  • Sub Level
  • Noise Level

Low-pass Filter

  • Cutoff
  • Resonance
  • Key Amount (Off, Half, Full)
  • Velocity (Off, On)

High-pass Filter

  • Cutoff
  • Resonance
  • Key Amount (Off, Half, Full)
  • Velocity (Off, On)

Filter Envelope

  • Low-pass Filter Amount
  • High-pass Filter Amount
  • Attack
  • Decay
  • Sustain
  • Release

AMP Envelope

  • Amount
  • Velocity (Off, On)
  • Attack
  • Decay
  • Sustain
  • Release


  • Rate
  • Off, On
  • Mode (Fixed Rate, Fixed Time, Fixed Rate A, Fixed Time A)


  • Frequency
  • Sync (Off, On)
  • Initial Amount

LFO Shapes

  • Triangle
  • Reverse Sawtooth
  • Sawtooth
  • Square
  • Random

LFO Destination

  • Oscillator 1 Frequency
  • Oscillator 2 Frequency
  • Oscillator 1 and 2 Pulse Width
  • Low-pass Filter Cutoff
  • High-pass Filter Cutoff
  • VCA

Modulation Source

  • Filter Envelope
  • Oscillator 2 Amount

Modulation Destination

  • Oscillator 1 Frequency
  • Oscillator 1 Shape
  • Oscillator 1 Pulse Width
  • Low-pass Filter Cutoff
  • High-pass Filter Cutoff


FX 1 Type

  • Bucket-brigade Delay
  • Distortion
  • Ring Modulation

FX 2 Types

  • Chorus
  • Low Resonance Phaser
  • High Resonance Phaser
  • Maestro Phaser


Each effect has 2 adjustable parameters



  • Key, Velocity, Slew (Off, On) for each step
  • BPM (shared with arpeggiator)
  • Time Divide (shared with arpeggiator)

Step Length

Up to 64 steps



  • Up
  • Down
  • Up + Down
  • Random
  • Assign


1 ~ 3 octaves


  • BPM (shared with sequencer)
  • Time Divide (shared with sequencer)

Performance Control


  • 13-key touch keyboard
  • 22 preset scales
  • 9 octaves: C0 ~ C9 (use with Oscillator 1 and 2 frequency parameters)

Slider Parameters

  • Oscillator 1 Frequency
  • Oscillator 2 Frequency
  • Low-pass Filter Amount
  • High-pass Filter Amount
  • LFO Amount
  • FX 1 Mix
  • FX 2 Mix

OLED Display

Able to access all parameters

MIDI Controllable Parameters



Aftertouch Destination

  • Oscillator 1 Frequency
  • Oscillator 2 Frequency
  • Low-pass Filter Cutoff
  • High-pass Filter Cutoff
  • VCA
  • LFO Amount

Pitch Bend Range

Up to -/+ 12 semitones


Key Mode

  • Low
  • High
  • Last
  • Low Retrigger
  • High Retrigger
  • Last Retrigger

Alternative Tuning

17 preset tunings



  • 1 AUDIO OUT L/R (1/4 inch TS Jacks)
  • 1 phone (1/4 inch stereo phone Jack)


  • 1 MIDI IN (5P DIN)


1 USB B port


1 TRIGGER IN (1/4 inch TS jack)

Trigger Input

  • Able to connect a general foot switch or input audio signals
  • Able to set the operation from 4 types:
    • Pedal
    • Trigger
    • Gate
    • Trigger-Gate

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