The JV-90 is an excellent  keyboard controller and MIDI synthesizer. It featured a full 76-note semi-weighted keyboard. There are also several sliders above the keyboard with assignable parameters for fast hands-on editing. The sounds of the JV-90 (and JV-80) were the basis for the JV-1080, JV-2080 and XP-80 synths that came later. You'll find basses, synth sounds, pads, leads, strings, percussion, drum kits and more. One additional ROM slot allows you to add an 8MB SR-JV80 expansion board for more great sounds.

Polyphony - 28 voices (expandable to 56)

Oscillators - Digital Acoustic simulation via 4MB (expandable to 14MB) of ROM

Arpeg/Seq - None

Filter - Digital filters

Effects - 2 effects units with chorus, reverb and delay

Memory - 256 Patches (can expand to about 600); 64 Performances

Keyboard - 76 semi-weighted keys (responds to velocity and aftertouch)

Control - MIDI (8- to 16-parts)

This keyboard feels great  making the JV-90 a nice master MIDI keyboard.