Pioneer TORAIZ AS-1 Monophonic Analog Synthesizer

Special Price $499.00 Regular Price $599.00



-True analog sound from Dave Smith Instruments Prophet-6
-Full programmability and 495 presets
-Intuitive user interface
-performance features including slider and 64-step sequencer
-Bright OLED display shows parameter information
-USB-B port and MIDI terminals

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 personalised 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 analogue synthesis engine based on the discrete analogue 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.



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


    The AS-1 is based on the same analogue filters as Dave Smith’s renowned Prophet-6 synthesiser. It has 2 voltage-controlled oscillators (VCO) with continuously-variable triangle, 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.


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


    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.


    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.


    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.

  • Arpeggiator

    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 theTORAIZ 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 analogue leads.


Maximum Polyphony 1 voice

Programme 99 programmes x 10 banks (5 factory banks, 5 user banks) * Each program includes its own sequence pattern
* Able to set up to 13 favourite programmes can be registered

Width 267.4 mm

Height 68.6 mm

Depth 177.7 mm

Weight 1.4 kg

Power Supply AC adaptor DC 5 V

Power Consumption 1500 mA

  • Included Accessories AC adaptor
  • Power cord
  • Quick Start Guide

Synthesis Parameters

  • Oscillator 1 Frequency
  • Pulse Width
  • Sync (Off, On)
  • Oscillator 1 Waveshapes (continuously variable) Triangle
  • Sawtooth
  • Variable-width Pulse
  • Oscillator 2 Frequency
  • Fine
  • Pulse Width
  • Key Follow (Off, On)
  • Low Frequency (Off, On)
  • Oscillator 2 Waveshapes (continuously variable) Triangle
  • Sawtooth
  • Variable-width Pulse

Oscillators Slop

  • Mixer 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
  • Glide Rate
  • Off, On
  • Mode (Fixed Rate, Fixed Time, Fixed Rate A, Fixed Time A)
  • LFO 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 Types Bucket-brigade Delay
  • Distortion
  • Ring Modulation
  • FX 2 Types Chorus
  • Low Resonance Phaser
  • High Resonance Phaser
  • Maestro Phaser

Parameters Each effect has 2 adjustable parameters


Step Length Up to 64 steps

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


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

Range 1 ~ 3 octaves

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

Performance Control

  • Keyboard 13 keys
  • 22 preset scales
  • 9 octaves: C0 ~ C9 (use with Oscillator 1 and 2 frequency parameters)
  • Slider Parameters (multi assignable) 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 Amount

  • 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


  • Outputs 1 AUDIO OUT L/R (1/4 inch TS Jacks)
  • 1 PHONES (1/4 inch stereo phone Jack)
  • MIDI 1 MIDI IN (5P Din)
  • 1 MIDI OUT/THRU (5P Din)

USB 1 USB B port

Others 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
More Information
Freeshipping Free Shipping
UPC (Universal Product Code) 8-41300-10073-7
MPN (manufacturer part number) TAS-1
Condition New
Features N/A
Specs N/A
Producut Video

© 2008 - 2018 RK Audio • 188 Lauman Lane Hicksville NY 11801 • 516-597-5450 All Rights Reserved.