The ASM Diosynth is a highly expressive instrument that combines a deep synthesis engine with a sample playback engine, offering the best of acoustic and electronic sounds.
Designed with wind players in mind, Diosynth features mechanical keys that replicate the feel of real sax and wind instruments—avoiding the flat button-style controls found on other wind synths. Multiple fingering modes, scale/key locking, and octave keys covering over eight octaves provide a familiar and versatile playing experience. For expression, Diosynth includes breath and bite sensors, an internal gyro, X/Y joystick, two pressure pads, and three programmable switches. It ships with 384 patches and supports a total of 768 patch locations, covering everything from traditional wind instruments such as saxophones, trumpets, and flutes to synth leads, basses, and tempo-synced, layered synth textures.
The sound engine is based on ASM’s renowned Hydrasynth with the addition of a new sample playback oscillator, giving Diosynth endless possibilities for sound creation and design. Users can blend realistic acoustic instruments—like a Harmon-muted trumpet or Peruvian bamboo flute—with Hydrasynth’s wavescan oscillators and process them through the 16-mode filter to create rich hybrid tones. ASM has meticulously sampled 128 unique reed, brass, fipple, and string-based sounds. Rare and exotic instruments are also included, like the contrabass Flute, Eb Tubax, and Peruvian llama whistle.
Having one sound like this would be amazing enough but you can layer or split two distinct parts, combining up to four Hydrasynth oscillators and two sample-based voices simultaneously. Connectivity features include ¼” stereo output, ⅛” headphone jack with dedicated volume, MIDI DIN In/Out, USB MIDI & Audio I/O, Bluetooth MIDI, and Bluetooth audio-in for playing along with music streams.
Users can listen via the built-in speaker or headphones. Diosynth is powered by the included USB-C adaptor or via two 18650 rechargeable batteries (not included). A Mac/PC editor and iOS/Android app simplify patch editing and live performance use. Each unit ships gig-ready in a hard-shell case with all required cables and accessories.
Specifications:
DISPLAY: OLED display with battery level indicator
LANGUAGES: English, Chinese
SAMPLED INSTRUMENTS: 128 (Woodwinds, brass, double reeds, strings, and more)
SYNTHESIZER WAVEFORMS: 219
PATCH MEMORY LOCATIONS: 768 (6 banks x 128 patches)
FAVORITES: 128 patches
OCTAVE: +/-3 octaves
TRANSPOSE: +/-11 semitones
SCALE TUNING: Yes
MASTER TUNING: 380 - 500 Hz
EFFECTS PART 1: Insert Effect (See Master Send Effects), EQ
EFFECTS PART 2: Insert Effect (See Master Send Effects), EQ
MASTER SEND EFFECTS: Bypass, Room, Hall 1, Hall 2, Real, Tempo Delay, Tempo Echo, Cross Delay, Chorus 1, Flanger, Chorus 2, Ensemble, Dual Rotary, Phaser, Tempo Phaser, Classic OD, Overdrive, Amp 1, Amp 2, Classic Metal, Classic Hard, Hard Dist, Metal Dist, EQ, EQ Hi-Fi, EQ Rock, Compressor, Comp Standard, Comp Limiter, Comp Attack, Vibrato, Classic Tremolo, Auto Pan, Auto Wah, BPM Auto Wah
MASTER REVERB: Room, Standard, Hall, Church
CONTROLS: Breath force sensor, Reed Bite sensor, 4 x Octave buttons (9-octave range), X/Y joystick, Control panel with clickable encoder and Mode buttons (Transpose, Favorites, Setup, Save, Sound/Edit), Assignable buttons (3), Pressure-sensitive buttons (2), separate volume controls (Speaker/Phones and Output), Gyro sensor
CONNECTIVITY: Line out (1 x 1/4" [6.35 mm], mono TS or stereo TRS), Headphones (1 x 1/8" [3.5 mm]), MIDI In/Out (5-pin DIN), USB MIDI & Audio, Bluetooth MIDI, Bluetooth Audio (input only)
BUILT-IN SPEAKER: Yes
BUILT-IN SPEAKER POWER RATING: 2W
POWER: 5V DC, 2A
BATTERIES: Not included.
BATTERY TYPE: Two 18650 lithium rechargeable batteries (9900mAh suggested)
DIMENSIONS: 3.27 x 2.65 x 27.46 in / 8.3 x 6.73 x 69.75 cm
WEIGHT: 2.0 Lbs / 0.9 kg
ACCESSORIES INCLUDED: Hard-shell travel case, folding stand, 2 mouthpieces, neck strap, power supply with universal power adapters, USB A–C cable, USB C–C cable, USB power Y cord, spit scrunchy, cleaning cloth, printed User guide
