video by KEYBOARDS NOSTALGY
This appears to be the first one pictured on the site. There are a couple of references to the HALO ROM sounds but not the actually keyboard synth. Some pics and details of one I found on eBay:
via this auction
SN 030200610
"The new ENSONIQ® Halo™ Keyboard delivers cutting-edge performance features and professional sound quality at an affordable price. Halo ships with a diverse 32 MB soundset that includes the acclaimed Perfect Piano – an incredibly expressive acoustic piano that gives you unmatched realism. Halo also offers you three additional internal ROM slots, allowing you to expand your sound palette using any ROMs from the comprehensive E-MU® Proteus® Expansion Library. This expandability lets you customize your Halo with ROM soundsets that are generally more genre-specific (i.e. Hip-Hop, Electronica, Orchestral, B-3, etc.).Halo also gives you 12 real-time controllers that put Halo's powerful synthesis features at your fingertips. You can tweak Halo's filters, LFO's, effects and more – giving you total performance control over your sounds. And Halo's 16 syncable/programmable arpeggiators and interactive Super BEATs Mode are perfectly syncronized with each other and over 100 rhythm-based synthesis and effects parameters, letting you perform entire pieces in real-time, all in perfect unison. Together with pristine 24-bit analog outputs and a lightning-fast processor, Halo offers professional results and playability at an incredible price.
61 keys
64 voice polyphony
32 MB Soundset w/ 640 factory/512 user presets (expandable to 128 MB)
16 programmable real-time control parameters/preset
16 simultaneous/syncable ARPs
SuperBEATs interactive Groove Mode (w/16 trigger buttons)
24-bit dual stereo effects processor
Four 24-bit analog outputs"













































