polynominal logo
Synthesizers Drum machines Samplers Effects 8-16bits+ toys HOME

Kurzweil 1000 series




kurzweil px1000

  audio demo trend price : 80-150€
manual demo video comments

Kurzweil Hx Px Gx Sx 1000 series (1987)


A set of rackmount expanders with sampled sounds from the Famous K250 each focused on different sounds typology.

1000 hx


info RACK (weight: 9 Kg)
The 1000 expanders series are a 2 units rackmount unit.
Main panel features a 16 x 2 lines display, 9 push buttons and a single knob for main volume.

Back panel terminal connectors:
- main outputs
- Midi interface

editVOICE system polyphony depends on related model (from 20 to 24 channels).
A basic 1000 program is composed by 4 PCM layers each with indivual level, pan and zone assignment.

pcm layers

editWAVETABLE each Kurzweil 1000 modules contains 2/ 4 MB of samples with crystal-clear quality sample rate. ROM sets can be expanded with optional memory chips blocks.

edit MODELS:

1000 PX Professional Expander - A 24 note polyphonic module featuring 120 presets ranging from Grand Piano and Strings to Choir, Organs, Acoustic Bass, Vibes, Woodwinds and Brass.

1000 SX String Expander: 20 note polyphonic module offering 99 preset sounds: from Professional Ensemble Strings to Solo Violin, Solo Cello and Pizzicato Strings.

1000 HX Horn expander: 20 note polyphonic module packed with 100 presets including Trumpet, Trumpet Mutes, trombones and saxophone.

1000 GX Guitar expander: 20 note polyphonic module with acoustic and electric sounds.

1000 AX Acoustic expander:acoustic sounds

1000 EX Ensemble (no info)

K1000 keyboard: PX1000 version with 76 weighted keys.

audio demo



edit EDIT It is not possible to edit deeply pararameters except some very minor functions, for this task you need some external old software for Atari ST or some old PC with DOS.


lfo LFO 2 modulators for oscillators pitch and filter cutoff . LFO offers 7 shapes with polarity inversion option: sine, cosine, saw, triangle, square, noise and random

adsr EG section features 2 EGs each with a 3-segments ASR and editable loop points.

edit PERFORMANCE multitimbral unit manages 16 parts each with individual Midi channel settings.

memroy MEMORY holds:
64 RAM slots
Memory system works with a lithium battery.

fx EFFECTS no dedicated DSP: effect is faked using voices, reducing tiny polyphony.
There are basically 5 kind of effects (plus variation and combination) available with limited edit:
phaser, leslie, vibrato, echo and chorus

memroy MIDI extensive implementation with control changes freely assignable to functions like LFO.
Special function SCOPE allows to monitor incoming Midi data on all channels

memroy SCALES 5 included presets: Equally tempered, Just, Harmonic, Indian, Arabic + 12 slots for custom scales.


audio demo
demo Brass demo 1
demo Brass demo 2
demo brass demo 3

we're looking for more demos, please share some :)




Kurzweil 1000 PX 1000 AX Kurzweil GX 1000
1000 PX 1000 AX GX 1000




press the
VALUE NO, VALUE YES and PLAY / EDIT buttons simultaneously.
The Expander
returns to PLAY mode.




Wiseman tips:

It is possible to chain (link) many units to raise the polyphony.




face behind serial


- sample quality
- today price


-not really editable
- obsolete
- bulky


REVIEW "Now an obsolete rompler for nostalgic and k250 fans. The 1000 expanders need an external editor for serious edit. "

logo kurzweil




polynominal logo
      For sale Comment Contact
Synthesizers Drum machines Samplers Effects 8-16bits+ toys HOME

all snapshots, sounds, texts copyright Polynominal.com / Eric Pochesci

kurzweil 1000 series 1-5 out of 5 based on 44 ratings. price €80