The Ensoniq Halo bears the Ensoniq name, but is part of the E-Mu Proteus 2000 series of keyboard synthesizers, along with the MK-6, PK-6, and XK-6. It has four slots for Ensoniq ROM chips and ships with the ZR-76 sound set, the "Sounds of the ZR featuring the Perfect Piano" (9088) ROM.
The Fizmo and ZR-76 were the last "true" Ensoniq synthesizers.
Year Released: 2002
Keyboard: 61 keys with velocity and aftertouch
Polyphony: 64 notes
Multitimbral: 16 parts
Preset Patches: 512
User Patches: 512
Effects: 24-bit dual stereo effects processor
Arpeggiator: 16 programmable and syncable arpeggiators
Power Consumption: 20 watts