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Alesis QSR

 

 

 

Alesis QSR rack

info Country: USA
Weight: 2 kg
Dimensions: 483x 45x 153mm
audio demo trend price : 150€
manual   factory patch demo video comments

ALESIS QSR (1997)

 

QS 7-8 synthesizers rackmount version ofmainly based on a sampled wavetable.

The QSR is a box full of bread and butter sounds with professional touches and special performance tricks.

pcmcia cards slot
lcd display

info RACKMOUNT single rack unit. Main panel features a large LCD screen, 8 buttons and a rotary data wheel.

Back panel terminal connectors:
- main out
- aux out
- Mid interface
- digital Adat output
- serial connector for communication with PC (at 38.4 Kbd) or Macintosh (at 1 MHz). Now both obsolete and quite totally useless.

ac Power supply is external with 9 V AC/AC voltage and pinouts.





edit VOICE
CPU hd6415108F system manages 64 voices polyphony based on QS Composite Synthesis subtractive synthesis. A basic program is composed by 4 PCM each with individual settings:
- volume gain
- pitch tuning
- stereo panning
- polymode or mono with portamento
- zone assign
- effect amount.


structure

alesis qsr edit


editWAVETABLE is a 16 MB ROM at 48 kHz categorized into 16 groups + 1 extra GM bank especially designed for Midi files SMF play.
SAMPLE IMPORT the module imports 16 bits samples (WAV or AIFF also old SDII Digidesign Sound Design format is supported) using the Soundbridge which is a free bundled software that burns special 2/4/8 Mb flash cards.


piano chromatic wave noise
ethnic percussive drums organ
sound fx percussion wind synth
bass guitar brass string

soundbridge





playmodes PERFORMANCE
QS mix mode manages 16 parts individual parameters:
- 13 assignable velocity curves
- Midi channel
- volume
- pitch/octave shift
- stereo panning
- effect level
- wheel modulation effect
- sustain effect
- keyboard zone.
THE TRACKING GENERATOR
allows to track some note steps for some short loop sequences.




performance





filter FILTER
each player part features 1 lowpass filter with no resonance.
Specail Filter track parameter increases or decreases filter cutroff effect through octaves.
TIP: The effect Q-resonance emphasis emulates a kind of resonance.


filter

 



adsr ENVELOPE
there are 3 EGs:
- EG1 amplitude: 4 stages ADSR+ 1 extra segments on initial delay time and sustain decay time
- EG2 filter: 4 stages ADSR + 1 extra segments on initial delay time and sustain decay time
- EG3 pitch: 4 stages ADSR + 1 extra segments on initial delay time and sustain decay time
The special trigger mode determines if the EG should be reset from beginning or continue according to 4 different modes: normal, freerun, reset and reset-freerun.

EG





lfo LFO
a single delayed digital modulator for each layer (shapes: 8 shapes : sine, triangle, square up, saw up, saw down, noise and 2 random models).
There are 3 modulation destinations:
- LFO to amplitude
- LFO to filter
- LFO to pitch.

 


fx EFFECT
based on Quadraverb II DSP featuring 4 real-time stereo effects including: reverb, chorus, pitch shifter, flanger, delay, overdrive and leslie.
TECH: Effects parameters can be controlledd by Midi CC#.





midi MIDI
Internal parameters are easy to modulate with the internal Matrix and each part can assigned to Midi CC#. Full sysex support for both editing and librarian storing purposes.



memroy MEMORY
:
- 512 preset slots
- 128 Mix Mode (400 Preset, 100 User).
RAM can be expanded using S-RAM memory cards, now quite difficult to find out on the market.
Battery replacement: soldered lithium battery Br-2325 model.

 

alesis qsr motherboard

 



midi MODIFICATION
QSR can be mangled with CIRCUIT BENDING PROCESS for glitched and lo-fi random sounds. The lack of space generally involves an external case or extra rackmount unit.

alesis qsr circuit bending
Circuit bent unit with extra rack control unit - picture from EBAY auction


 

demo RELATED MODELS

alesis qs6

QS6 - 8 MB rom 64 voices - 61 keys - VIDEO

updated to:
QS6.1 : 16 Mb ROM + enhancements
QS6.2 : 16 Mb Rom new converters

alesis qs7

QS7 - 16 MB rom 64 voices - 76 keys VIDEO

updated to:
QS7.1 : enhancements

alesis qs8

QS8 - 16 MB rom 64 voices - 88 keys VIDEO

updated to:
QS8.2 : new 24 bits converters

 



demo
AUDIO DEMO

demo factory demo
demo factory demo2
demo factory demo3
demo factory demo4
demo factory demo5
demo GS GM: bianca
demo GS GM: monkey island reggae
demo GS GM: ultima VII fellowship theme
demo piano: concert Chopin
demo EP: rhodes
demo EP: tines DX7
demo Organ: hammond
demo Organ: hammond 2
demo Choir: strange
demo Bass: reverse
demo Bass: tb303
demo Bell: castle master
demo Synth: layer
demo Synth: newww
demo Pad: metal
demo Pad: ambient
demo Pad: digital 1
demo Pad: digital 2
demo Pad: digital 3
demo Pad: soft
demo Pad: strings
demo Sequence: techno jungle
demo Sequence: new wave
demo Sequence: ambient
demo Sequence: pad
demo Sequence: 33
demo Percussion: shot
demo Percussion: weird
demo Percussion: noise
demo Drum: tr808
demo Drum: tr909
demo FX: modular
demo FX: space wind
demo FX: flanger
demo FX: LFO



 

video VIDEO CLIP SELECTION

Beat-Style-Matrix Studio Soundcheck DEMO Synth Rack Alesis QSR circuit bent alesis qsr
Studio Soundcheck DEMO Synth circuit bent



 

inside the machine


 

 

ALESIS QSR RESET PROCEDURE:

Hold down both CURSORS LEFT /RIGHT buttons while turning on the power

 

reset

 

 

 




manual
ALESIS QSR USER MANUAL

 

 

 


manual
DOWNLOAD
FACTORY PATCHES

 

 


manual
QSR SERVICE MANUAL /SCHEMATICS

 

 


 

 

 


buy alesis qcards
BUY QSR ORIGINAL SOUNDCARDS
-ASK AVAILABILITY-

 

 

 

 

Alesis QSR for sale

Alesis QSR for sale
CHECK OUT EBAY OFFERS

 

 

inside the machine QSR MAIN BOARD EPROM 7-re v1.01 1997


manual

- excellent PCM cards
- complex structure
-a lot of sounds

manual

- edit
- external PSU

comment

REVIEW "At the time is was a good alternative to Roland Jv series (like 1080 / 2080) with classy sound, far better than previous Alesis S4 / S4+"

 


COMMENTS

 

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Alesis QSR 3.0 out of 5 based on 22 ratings. price €200