As a Weari Abacus KS1 fan. Here are the Specs. for all those that are interested. Let us not forget that this is a very, very expensive arranger, or else I would own one of these dream keyboards.

Effects / Reverb
Several separate reverb and effect systems, reverb length, intensity, brightness control, 3 effects at once. Reverb and effect programmable for each sound.
Keyboard / Pedal
5 octave weighted, dynamic and aftertouch, piano mode, split mode, *13 note pedal board options
Keyboard Housing
Black metallic with solid wood sides, special pearlised white finish optional
silver plantinum finish optional
Display - Touch Screen
Colour display 7.7" VGA, touch screen
OX7 Sinus Drawbars 9/7 Pitch
Virtual physical sound generating 4 organ types - B3, H100, Spectra / Atlantis, Helios / Galaxy, rotor effect system for base and horn. Quick/slow scanner vibrato, chorus, normal, celestial, quick/slow, programmable organ presets, keyclick, sustain, delay
Sounds - Polyphony
128 polyphonic voices, 600 advanced sampled sounds, XG mode, 50 long wave stereo sampled sounds. Sounds can be loaded if required. Akai S100 - 3000 compatible, 20 drum kits, reverb, chorus, effects, sound characteristic, tone colour can be recorded for each sound
Effect Switches
6 effect switches for special effects
Microphone sockets
2 microphone sockets , EQ with base, 2 x parametric mid, high and reverb, chorus and echo adjustable
Digital Mixing Desk
With 6 output sockets (3 x stereo), volume, EQ for all channels, 4 input sockets (2 x stereo), volume, EQ for all channels, 2 microphone sockets, volume, EQ for all channels, *SP-DIF digital in/out optional
Hard Disk Recording
Hard disk recording of music, including vocals, production of own audio CDs with *optional CD burner, multitrack recording with Cubasis VST
Diskette Processor - 1.44 MB
Hard drive - 8 giga byte. 20 giga byte optional*
*Vocalist - Vocalist for multiple voices
Operation / Total Presets
Up to 1000 freely programmable total presets, direct access, instant sound and rhythm selection via switches on operating console and touch screen - adjusting volume in real time via drawbars, 3 sounds on the right hand side of the split, 2 sounds on the left
Connections
2 x midi in/out/thru, 2 microphone sockets (stereo). Main output (mono/stereo), 2 additional stereo output sockets, pedal, foot pedal, SP-DIF Digital In/Out optional, printer, 2 USB connections, mouse & keyboard connection, 2 COM ports, monitor connector
*Real Drums - Wave Player
Revolutionary new drum accompaniment, live rhythms, automatic accompaniment, playing of PC compatible WAVE Data files possible with standard model, waves limited only by hard drive capacity, production of own wave data files on the instrument
Rhythm / Accompaniment
Rhythms each with 4 variations, 2 intros, 2 endings and 2 fill ins. Own choice of rhythms can be loaded as required. *Rhythms of Pegasus, Performer, Phon X, GG can be converted, one finger or multi finger harmony recognition, newly developed Wersi Chord harmony recognition.
Sequencer
16/32 track sequencer, own choice of sequences can be loaded, full XG + GM standard, Cubasis VST and Karaoke software included as standard
Lyrics and Karaoke can be displayed on the screen. Notes displayed through Cubasis VST softwarae
CD Rom
32/40 speed CD Rom processor *optional CD burner for producing audio CDs
Master CPU - PC
Windows 98. Memory 256 Mb SD-Ram Memory PC100 *Optional up to 500 MB. Interface for printer, 2 universal connections, 2 part USB connection, connection for 17" monitor. *PC keyboard and mouse - *cordless
*Amplifier / loud speakers
2 x 30 Watt stereo, bass and Kalotten high tone sound system
Dimensions
Width: 118 cm, Depth : 46 cm, Height : 14.5 cm
Direct stereo sound samples
Individual Expander sounds from AKAI's vast sound library can be directly loaded into the Abacus
Instrument: 61 note dynamic weighted keyboard, aftertouch. 76 note keyboard which fits under the Abacus KS1, making it useable aS a two manual instrument.
Sound Generation: ASS (Advanced Sampled Sounds) and LWSS (Long Wave Sampled Sounds) Akai S1000-3000 compatible | 20 Drum Kits | GM and XG MIDI Standards Polyphonic: 128 Notes | lower manual 2 layer/Split upper manual 3 layer
OX7 Realtime drawbars for upper and below split
Computer: PC-ATX/Celeron/Windows 98SE/VGA-LCD-Touch Screen | 8.4 GB Hard Drive / 1.44 MB Floppy / CD-ROM / 256Mb SD-Ram Memory PC100
Controllers: 13 Realtime Controls | Pitch/Modulation Wheels
Rhythms: Rhythms with auto accompaniment / 4-style Variations
Sounds: 600 Advanced sample sounds/50 Long Wave Stereo Sample Sounds/1000 Presets
Mixer: For all in/output sockets Equaliser
In/Output: 2 x Microphone/4 x Line in / 6 x Line out

Digital Mixing Desk
The integrated digital mixing desk means that you don't need an additional mixing desk for playing live. With 2 microphone sockets and a further 2 independent stereo sockets you can mix all of your equipment via the Abacus. Al sockets have an equalizer and reverb, chorus and echo effects. In addition, there are 3 independent stereo outputs, each with 3 level sound controls.

IS THIS A SERIOUS BOARD OR WHAT???????