Alesis Quadrasynth series
The Alesis QuadraSynth series represents a series of synthesizers released by Alesis, spanning the years of 1993 to 2003. They incorporate a synthesis method known as "QS Composite Synthesis"[1], with a comparable feature set to the Korg ai² series of synthesizers, but instead featuring Alesis sounds and Alesis effects.
The voice count for all synthesizers listed here is 64, with up to 4 voices per note.
Original line
Original models
The original lineup consists of one keyboard and one module version, both featuring 256 total programs and 200 total mixes.
Plus models
The Plus models upgraded the firmware to v2.0, and with it came a lot of big and small additions - more programs and more mixes, a new effect, and more.
QS line
The successor to the Quadrasynth came in the form of the QS line of synthesizers - featuring a new look (more in line with contemporary Alesis offerings) and a completely new set of sounds.
Non-upgraded models
- Alesis QS6 - Features only 8 megabits of ROM.
- Alesis QS7, Alesis QS8 and Alesis QSR - features 16 megabits of ROM, and two PCMCIA card slots instead of just one.
- Alesis NanoSynth - a 1/3 width, 1U module centering around GM compatibility. 8 megabit of rom like the QS6, can load QS6 programs. Has a cheeky manual.
Upgraded models
- Alesis QS6.1, QS7.1 and QS8.1 - features a larger display, and the QS6.1 is brought up to the same standards as the 7.1/8.1. Only difference lies in the keyboard and number of keys.
- Alesis QS6.2 and Alesis QS8.2 - features a shiny silver finish (typical of the early 2000s), removes one PCMCIA slot.