QSR 64 Voice Expandable Synthesizer Module

For MIDI composers and musicians using controller keyboards, the QSR™ offers the excellent sounds and powerful synthesis engine from the advanced QS7 and QS8 keyboards in a single-space, rack-mount module. 16 megabytes of great Alesis sounds are packed into the QSR, and you can easily expand its sonic library by plugging in a QCard. Plus, the QSR offers the same dual expansion card slots, serial port and CD-ROM software package as the QS Series keyboards, making it one of the best values today in professional-quality sound generation tools.


  • Large, easy-to-read display, enhanced GM sound set
  • Hundreds of sounds and multitimbral mixes for your best compositions and performances
  • Includes Alesis' acclaimed stereo grand piano sounds
  • 64 voice polyphony
  • Easy-to-understand interface for performing, programming and editing
  • Expansion card slots for adding an additional 16MB of new sounds, and Sound Bridge software for adding your own custom samples
  • ADAT Optical Digital Interface and Serial Data port
  • Included CD-ROM gets you rolling with software for MIDI sequencing, notation, editor/librarians, sample manipulation, extra sounds for the QS Series and more
  • Play back up to 100 Standard MIDI File sequences without any external sequencing device
  • Sound Generation Method: 16 Bit Linear 48kHz Sample ROM
  • Synthesis: QS Composite Synthesis ™
  • Voices: 64, each with sweepable lowpass filter, 3 envelope generators, 3 LFOs, programmable effects send and QS Modulation Matrix, dynamic voice allocation
  • Available Waveform Memory: 16 MB, expandable to 32 MB via PCMCIA Expansion Card Slots
  • Program Memory: 512 Preset, 128 User Mix Mode (400 Preset, 100 User)
  • Effects: QS Parallel Matrix Effects™ (4 independent stereo multieffect processing busses)
  • Multitimbral Mode: QS Mix Mode (64 Part multitimbral across 16 MIDI channels)
  • Expansion Slots: PCMCIA card slots, QCard and Sound Bridge compatible
  • User Interface: Backlit custom LCD display
  • MIDI Connections: MIDI In, Out, Thru.
  • Serial Jack: High Speed computer interface switchable between RS 422 and RS 232 protocols, Mac and PC compatible
  • Audio Outputs: Main L/R (1/4”), Aux L/R (1/4”), Headphone (1/4” TRS)
  • Power: 9VAC External Transformer, UL and CSA Approved
  • Dimensions: (WxHxD) 19"x1.75"x6" (483mm x 45mm x 153mm)
  • Weight: 4.5 lbs (2 kg)

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