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Alesis QS 8.1 QS Composite Synthesis Workstation

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America's Favorite Synth Family Keeps Getting Better

The QS8.1™ is one of the newest members of Alesis’ award-winning QS Series of keyboards and synth modules. It offers an excellent selection of new features including a newly-designed backlit LCD display that’s larger than that of the preceding keyboards, making it perfect for live performances. The QS8.1 also includes dedicated buttons for “Transpose” and “Sequence Select”, allowing you to immediately access these functions without paging through menus. Plus, we’ve enhanced the General MIDI sound set so that composition and playback of compatible files are even better sounding than before, and the new Alesis Synthesizers CD-ROM software pack has been improved to offer more powerful tools for serious MIDI productions.

Hundreds of Sounds, Open-Ended Expansion: Up to 32MB Simultaneously

The QS8.1 offers an immense 16MB onboard sound library, comprising 640 programs and 500 multitimbral mixes. You’ll find Alesis’ highly-acclaimed stereo grand piano sounds, as well as dozens of organs, cutting-edge and vintage synth sounds, strings, brass, winds, guitars, drums, percussion, loops and much more. In addition to its great onboard collection of sounds, the QS8.1 is compatible with Alesis’ QCard™ ROM expansions, so you can add another 16MB of brand new samples and program/ mix information in nearly every musical genre by using the two rear panel card slots. The QS8.1 is also compatible with our Sound Bridge™software that lets you import, save and playback AIFF, WAV and other sample formats, allowing you to use your own samples or sounds from other sample libraries.

Powerful, Professional Performance Tools

The QS8.1 provides four edit/control sliders and two pedal inputs that are assignable to nearly any sound or effect modulation parameter and features a 88-key fully-weighted keyboard with velocity, release velocity and aftertouch functions. Also, the QS8.1 includes a dedicated sustain pedal jack, pitch and mod wheels, and aftertouch for your most expressive performances.

Comprehensive MIDI Productions: Alesis Synthesizer CD-ROM

The Alesis Synthesizer CD-ROM which comes with each QS Series synth includes a slew of full-featured software-based MIDI production tools from innovative companies like Emagic™, Opcode™ and Alesis. Built for both Mac® and Windows® platforms, you’ll get the Sound Bridge and FreeLoader applications, plus programs for sequencing and digital audio, editor/librarians, notation, extra samples, programs and mixes, sample sequences, demos and more.

Innovative Interfaces, Onboard Multieffects and More

The QS8.1 offers a high-speed serial data port for direct computer interfacing in addition to their MIDI In, Out and Thru connections, and the ADAT Optical output for direct digital audio connection to a wide variety of recorders, mixers and other tools that use this standard multichannel transfer protocol. The built-in multieffects include great-sounding reverb, chorus, distortion, EQ, delay, rotary speaker simulation and more.


New! Dedicated "Transpose" and "Sequence Select" buttons, 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

88-note fully-weighted keyboard

Multiple controller features for powerful live performances

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

Keyboard Section: 88 hammer action weighted keys (velocity, release velocity, aftertouch sensitive)

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)

Controllers: 4 Control Sliders, Programmable Pitch and Modulation wheels, Aftertouch

Expansion Slots: PCMCIA card slots, QCard and Sound Bridge compatible

User Interface: Backlit custom LCD display

Pedal Jacks: Two Assignable Aux pedal jack, Sustain pedal jack

Serial Jack: High Speed computer interface switchable between RS 422 and RS 232 protocols, Mac and PC compatible

Technical Specifications
Type: Digital
Synthesis: ROM, Subtractive
Oscillators: 4
Waveforms: ROM
ROM Size: 16
ROM Resolution: 16 bit, 48 kHz
Osc Modulation: After Touch, Continuous Controller, Envelope, Keyboard, Knob, Mod Wheel, Oscillator, Pitch Wheel
Oscillator Notes:
+ 16 MB PCMCIA ROM and RAM cards
Envelopes: 3
Evelope Paramerters: Delay, Attack, Decay, Sustain, Release
Envelope Notes::
pitch, filter and amp.
Filters: 1
Types: 12dB Slope (2-pole), Low Pass
Filter Modulation: Envelope, Keyboard, LFO, Mod Wheel
LFO: 3
LFO Parameters: Noise, Sample & Hold, Saw Up, Saw Down, Sine, Square, Triangle, Delay, Key Sync
LFO Notes::
pitch, filter and amp
Polyphony & Tuning
Polyphony: 64
Timbrality: 16
Tuning: Standard
Patches RAM: 128
Patches ROM: 512
Multipatches RAM: 100
Multipatches ROM: 400
Storage: Internal, RAM Cartridge, ROM Cartridge
On board effects, based on the Alesis Q2 FX processor: reverb, delay, pitch, panning, resonator, chorus, flange, lezlie, and overdrive.
Play back up to 100 Standard MIDI File sequences without any external sequencing device.
Case: Keyboard
Case Details: 88 Weighted Keys
Controls: Aftertouch, Faders, Mod - Wheel, Pitch -Wheel, Pedal - Sustain, Velocity, Pedal - Volume
Dimensions (WxDxH): 51in. x 4in. x 16in.
Weight: 60 lbs / 27.2 kg
Audio Output Connections: 1/4" Phone Jack, ADAT, Stereo Main, Stereo Headphone
Inputs: Serial Interface For Mac/pc, Adat Optical Digital Interface
Control Features: MIDI: IN / OUT / THRU
DAC Bits: 16
DAC Frequency Rate: 48
Power: 110 / 220 vAC
Year Released: 1999
Manuals & Documents

Product Links
Company Product Sites:
[+] www.alesis.com
MSRP List Price: $1,899 - convert
Retail Street Price: $1,799 - convert
Used Price: $400 - $800 - convert

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