

| Synth Name: | Alesis Fusion 6HD/8HD |
| Synth Manufacturer: | Alesis |
| Synthesis Type: | Sample Playback, Virtual Analog, FM and Physical Modeling |
| Polyphony: | Dynamic processor allocation varies depending on the complexity of the program. |
| Timbrality: | 16 parts in Mix mode; 32 Parts in Song mode |
| Keyboard: | 6HD - 61 note semi weighted; 8HD - 88 note fully weighted |
| Filter: | 26 filter types in most synthesis types provided |
| Lfo: | 8 per voice |
| Ext Control: | USB for file exchange only. MIDI in, out, thru |
| Fx: | 80 + 3-band parametric EQ |
| Dates: | 2005 - 2008 |
| Memory: | 64MB×2 - Expandable up to 192MB×2, for a total of 384MB via the E3 Memory Upgrade |
| Keys: | 61/88 |
| Velocity: | Yes |
| Aftertouch: | Yes |
| Split: | Yes |
Alesis Fusion is a music production workstation produced by Alesis introduced in early 2005. It uses four different types of synthesis: sample and synthesis, virtual analog, FM and physical modeling. It includes sampling capability through analog inputs and importing audio samples from a computer or memory card.[1]
The workstation is available in two models. The Fusion 6HD is a sixty-one note semi-weighted keyboard workstation.[2] [3] The Fusion 8HD is an eighty-eight note weighted keyboard workstation.[4] The two models are identical aside from the keyboard type.[5] It competes with the Korg Triton, the Yamaha Motif and the Roland Fantom-X.