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Alesis QS6.1 Composite Synthesis

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The Performance and Composition Power Tool

The Alesis QS6.1 64 Voice Expandable Synthesizer offers a vast improvement on the original QS6, one of the most popular keyboards in its class. With double the sound ROM memory, the addition of Alesis' acclaimed piano programs, double the expansion capabilities, four edit/control sliders, a new LCD display and more direct-access functions, the QS6.1 becomes an affordable powerhouse synth that's equally great for MIDI composing and live performance.

Hundreds of Sounds For Every Application

The QS6.1 provides a huge sound library of 640 programs and 500 multitimbral mixes...the same great sounds from our powerful QS7 and QS8 keyboards. All the QS6.1's sounds are constructed from non-compressed 16-bit linear samples, adding texture and realism that inspires every performance. The QS6.1's 16 megabyte collection of sounds includes Alesis' stereo Bosendorfer grand piano, one of the most realistic-sounding piano programs ever implemented into a synthesizer. In addition, you'll get dozens of organs, cutting-edge and vintage synth sounds, strings, brass, winds, guitars, drums, percussion and much more. Plus, the QS6.1 has groups of rhythmic/sonic loops, built-in grooves that sound great on their own, and can also be used to add dynamic movement to your music.

Expandable to up to 32 Meg

The QS6.1 provides two PCMCIA-format ports which let you immediately access an additional 16MB of sound ROM without installing complicated circuit boards or waiting for disk drives. You can use this port with any Alesis QCard expansion that accommodates your musical style, whether you're into classical, hip-hop, pop, rock, orchestral music or otherwise. To use your own samples or sounds from other sample libraries, we included our Sound Bridge software that lets you import, save and playback AIFF, WAV and other sample formats. Plus, Sound Bridge will allow you to burn your sequences to a Flash RAM card and play them back directly from the QS6.1, so you can leave your computer at home when you play live.

QS Synthesis Power

The QS6.1's true 64-voice polyphony lets you work with complex sequences and create rich, stacked chords and layers while avoid the hassles of voice robbing. Using its QS Mix Mode, you can flexibly arrange programs into 16-zone keyboard splits, create thickly stacked sonic layers or assign programs in any combination to the 16 MIDI channels. This powerful multitimbral capability lets any sequencer play back multiple instruments in an arrangement. Complete creative control over the volume, panning, transposition, effects level and routing for each of the 16 channels in a mix is the key to forging detailed, personalized sounds on the QS6.1.

Expressive Performance Tools

The QS6.1 offers incredibly powerful controller functions that add expressiveness to all of your performances. Its four edit/control sliders are assignable to nearly any modulation parameter for both sounds and effects, so you could set them up to create exciting, dynamic real-time changes for recording and live performances. You can also route the QS6.1's assignable pedal input to any modulation destination. Plus, its 61-key, semi-weighted keyboard provides velocity, release velocity and aftertouch functions for adding expression and feel. A dedicated sustain pedal jack, and pitch and mod wheels complete the QS6.1's performance control tool kit.

Built-In Four-Bus Multieffects

The onboard multieffects of the QS6.1 includes great-sounding reverb, chorus, distortion, EQ, delay, rotary speaker simulation and more. Plus, the QS6.1 provides four completely independent multieffects sends which allows you to add reverb to a drum, chorus to a guitar sound, lezlie to an organ and so on, each with its own effects send level. Combine these effects with the massive sound library and the powerful multitimbral mix mode, and you can create entire CD-quality productions.

Complete Your Workstation with the Alesis CD-ROM

With a QS6.1, your computer and the included Alesis CD-ROM Software Pack, you have all the elements required for a complete MIDI production workstation. The CD-ROM (in Macr and Windowsr format) gives you Alesis' Sound Bridge and FreeLoader applications, plus programs for sequencing, editor/librarians, notation, extra samples, programs and mixes, sample sequences, demos and more. Many of these applications are from the biggest names in music software, like Steinbergt and Mark of the Unicornt, so you'll be on par with the best MIDI workstations.

Powerful Serial Computer Interface

In addition to its MIDI In, Out and Thru connectors, the QS6.1 offers another way to interface with computers. Its high-speed serial data port makes it easy to connect your QS6.1 to any computer - no need for an expensive external MIDI interface. Operating up to four times as fast as a MIDI interface, this port can access both Macintosh or PC platforms, and makes it easy to get into sequencing, notation, sample importing and downloading, editor/librarians and multimedia authoring.

New LCD Display and New Features

The QS6.1 offers a larger LCD display than the original QS6, so all of the information you need is available at a glance. Plus, the QS6.1 includes dedicated buttons for "Transpose" and "Sequence Start", which is especially useful on stage, where paging through menus is not an option.

If you've been waiting for a compact synth that combines great sounds, serious customizability and control, and professional features at an incredibly affordable price, wait no longer: the QS6.1 has arrived.

Special Features:

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: 61 semi-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: Assignable Aux pedal jack, Sustain pedal jack

MIDI Connections: MIDI In, MIDI Out/Thru

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

Audio Outputs: Stereo L and R outputs

Power: Internal transformer, configurable for 110/220 vAC

Dimensions: (WxHxD) 36"x3.5"x11.5"

Weight: 19 lbs.

Technical Specifications
Type: Digital
Synthesis: ROM, Subtractive
Oscillators: 4
Waveforms: ROM
ROM Size: 16
ROM Resolution: 16 bit, 48 kHz
Osc Modulation: After Touch, Envelope, Keyboard, LFO, Oscillator, Pitch Wheel, Glide / Portamento
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: ADAT, Internal, PCMCIA
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: 61 non-weighted
Controls: Aftertouch, Faders, Mod - Wheel, Pitch -Wheel, Velocity - Release, Pedal - Sustain, Velocity, Pedal - Volume
Dimensions (WxDxH): 36"x3.5"x11.5"
Weight: 19 lbs.
Audio Output Connections: 1/4" Phone Jack, ADAT, Stereo Main, Stereo Headphone
Audio Output Count: 5
Inputs: Serial Interface For Mac/pc, Adat Optical Digital Interface
Power: 110/220 vAC
Year Released: 1999
Manuals & Documents

Product Links
Company Product Sites:
[+] www.alesis.com
MSRP List Price: $1,099 - convert
Retail Street Price: $999 - convert
Used Price: $250 - $600 - convert

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