KINSPIRATIONSoftware for the K2700Waitlist
Hybrid synth editor · Mac · for the Kurzweil K2700

ULTRASYNTH3

A modern three-oscillator synth that lands on your K2700.

Three oscillators, a filter, a mod matrix and effects, and every control mapped onto the K2700.

One page: three oscillators, a mixer with ring and noise, a resonant filter, envelopes, LFOs, a 16-row mod matrix and effects. Each patch becomes a stack of VAST layers on the K2700.

The panel always shows what a sound costs on the instrument (layers, notes, polyphony) and greys out what the K2700 cannot do. With the LINK on, every move reaches the K2700 as you make it.

Hear it

All 64 of the starters

Recorded directly from a Kurzweil K2700's audio output, with no external processing: every sound and effect is the K2700's own, playing the program ULTRASYNTH3 sends it. Each plays a riff or chords that suit it; only the levels are matched.

  1. A11 Glass StackPOLY

    A chord progression, re-struck so the filter opens on every hit

    0:11
  2. A12 Glass FlangePOLY

    The progression, the flanger sweeping under it

    0:12
  3. A13 Glass PhasePOLY

    Held chords, the phaser turning them

    0:12
  4. A14 Juno WashPOLY

    Soft chords held through the bar: slow PWM and a wide chorus

    0:12
  5. A15 Bloom ChordPOLY

    A slow chord, the pitch wheel opening it

    0:09
  6. A16 Velvet PolyPOLY

    Dark chords opening with aftertouch

    0:07
  7. A17 Stab 90sPOLY

    Fifth stabs, the dotted echo answering

    0:07
  8. A18 Detune KeysPOLY

    Chords struck like an electric piano

    0:09
  9. A21 Sub SquareBASS

    A square bass line with its sine sub

    0:08
  10. A22 Acid RingBASS

    A 16th-note acid line with slides, high resonance and ring

    0:07
  11. A23 Growl SyncBASS

    Eighths, the sync falling on every note

    0:05
  12. A24 Rubber MonoBASS

    A legato line, gliding where notes overlap

    0:05
  13. A25 Reese StackBASS

    A slow minor bass line: detuned saws beating, the filter moving

    0:10
  14. A26 FM ThumpBASS

    A round bass, the FM on each attack

    0:05
  15. A27 Pluck BassBASS

    A plucked eighth-note line

    0:05
  16. A28 Wobble 1/8BASS

    Held notes, the filter wobbling in eighths

    0:06
  17. A31 Sync ScreamLEAD

    A legato phrase, vibrato on the wheel at the end

    0:05
  18. A32 Saw LeadLEAD

    A lead phrase, the dotted echo answering it

    0:09
  19. A33 Hollow PulseLEAD

    A reedy phrase on a narrow pulse

    0:06
  20. A34 Glide SineLEAD

    Wide legato leaps, the long glide and slow vibrato

    0:07
  21. A35 Fifth LeadLEAD

    A melody with the fifth on top

    0:05
  22. A36 Vox LeadLEAD

    Long notes, the wheel moving the vowel

    0:05
  23. A37 Bend ChordLEAD

    A phrase, the pitch wheel opening a chord

    0:06
  24. A38 Brass LeadLEAD

    A brassy phrase opening with aftertouch

    0:05
  25. A41 Slow ChoirPAD

    Slow 'aah' chords

    0:09
  26. A42 Silk DriftPAD

    Long chords, the stacked strings drifting slowly

    0:13
  27. A43 PWM CloudsPAD

    Chords, the two PWMs drifting

    0:09
  28. A44 Noise AirPAD

    Long chords with breath

    0:09
  29. A45 Shimmer PadPAD

    Bright octave chords, flanger and long echo

    0:11
  30. A46 Dark MatterPAD

    Low, dark chords, the phaser moving slowly

    0:11
  31. A47 Stack WarmPAD

    Warm chords, aftertouch opening the filter

    0:07
  32. A48 Evolve LoopPAD

    Held chords pulsing and evolving

    0:10
  33. A51 FM TinesKEYS & PLUCK

    A ballad: soft chords, a stronger melody that brings in more FM

    0:14
  34. A52 Glass BellKEYS & PLUCK

    A slow melody of glass bells

    0:05
  35. A53 Clavinet 1KEYS & PLUCK

    A funky sixteenth riff

    0:06
  36. A54 Harpsi RelKEYS & PLUCK

    Broken chords in sixteenths

    0:05
  37. A55 MarimbaKEYS & PLUCK

    A wooden melody

    0:05
  38. A56 KalimbaKEYS & PLUCK

    An eighth-note pattern of metal tines

    0:05
  39. A57 Pluck SyncKEYS & PLUCK

    An arpeggio, the sync falling and the dotted echo

    0:06
  40. A58 Organ PercKEYS & PLUCK

    Organ chords with their percussion

    0:09
  41. A61 Poly BrassBRASS & STRINGS

    Brass stabs, then chords swelling with aftertouch

    0:10
  42. A62 Swell BrassBRASS & STRINGS

    Brass chords swelling slowly

    0:07
  43. A63 Str MachineBRASS & STRINGS

    A seventies string machine, chords in octaves

    0:07
  44. A64 Solo ViolaBRASS & STRINGS

    A legato line, vibrato on aftertouch

    0:06
  45. A65 Horn SectionBRASS & STRINGS

    Horn stabs and held chords

    0:05
  46. A66 Cello LowBRASS & STRINGS

    A low line, vibrato on the wheel

    0:07
  47. A67 PizzBRASS & STRINGS

    Pizzicato eighths in the room

    0:05
  48. A68 Orch HitBRASS & STRINGS

    Orchestra hits

    0:05
  49. A71 Gate 1/16MOTION

    Held chords, gated in sixteenths

    0:07
  50. A72 Step FilterMOTION

    Held chords, the filter stepping each eighth

    0:07
  51. A73 Pulse ChordsMOTION

    Held fifths, pumped in eighths with the tempo

    0:12
  52. A74 Trance GateMOTION

    Held chords, the filter gating and the wide echo

    0:08
  53. A75 Echo PluckMOTION

    A few plucked notes; the echo with its feedback does the rest

    0:07
  54. A76 Poly RhythmMOTION

    One held chord, triplets against a slow resonance

    0:05
  55. A77 Random StepsMOTION

    Held chords, random pulse widths and filter

    0:05
  56. A78 Pump PadMOTION

    A pad pumping on the beat

    0:05
  57. A81 Kick SineFX & PERC

    A kick pattern

    0:04
  58. A82 Snare NoiseFX & PERC

    A snare on two and four

    0:04
  59. A83 Hat MetalFX & PERC

    Eighth-note hats, closed and open

    0:04
  60. A84 Zap LaserFX & PERC

    Laser zaps

    0:03
  61. A85 RiserFX & PERC

    One held note: the six-second rise, then let go

    0:09
  62. A86 WindFX & PERC

    Wind wandering

    0:08
  63. A87 SciFi DroneFX & PERC

    A drone, the FM changing slowly

    0:10
  64. A88 Bells RingFX & PERC

    Ring-modulated bells in a long hall

    0:06
Inside

What it does

Three oscillators

STACK, SYNC and RING; sine, triangle, saw, pulse and ROM waves; FM between oscillators.

Filter

LP, BP or HP at 12 or 24 dB, with key tracking, its envelope and LFO 1.

Envelopes and LFOs

DAHDSR envelopes with loop, and three LFOs.

Voice

Poly, mono or legato; unison 2 or 4; glide.

MOD MATRIX

16 rows of routing.

Effects

One chain on the K2700: distortion, then chorus, flanger or phaser, then a tempo delay; and a hall reverb. Every effect knob moves live.

128 starters

MODERN 1 and MODERN 2, two banks of 64 in 8 categories, level-matched, plus MY PATCHES, in a preset browser with search.

LINK, STORE, READ

Live edits; the effect chain checked on the K2700 when you connect; STORE with confirmation and read-back; READ turns a stored program back into a patch.

Details

What you need

Platform
macOS app.
K2700
Not needed to play. With a K2700 on USB: LINK, STORE and READ.
Patches
Starters and MY PATCHES.
Coming soon

Be the first to know

ULTRASYNTH3 is in development. Leave your email and we'll write when it's ready.