The JD-990 is an enhanced version of the JD-800 and was the top o' the line JD-synth. Its rack-mount design and impressive power and functionality within the studio paved way for the hugely successful JV-series rack modules which lead, ultimately, to the XV-series monster-modules! The JD-990 is a digital synth with 6MB of ROM sounds with "analog-like" edit parameters and features. These include lowpass filtering, ring modulation, osc. sync, frequency cross-mod, etc. The JD-990 is also compatible with JV80 and JD800 expansion boards.

The JD-990 has a large LCD display which makes editing very easy and intuitive, you can actually see the envelopes and LFO rates. There's an on-board multi-effects processor with Delay, Reverb, Phaser, Distortion, Chorus, and EQ. For the studio, the JD-990 has MIDI IN/OUT/THRU and eight outputs in four stereo pairs. The JD-990 can hold one internal expansion board and the best choice is to put the Vintage expansion in it because that gives you about 512 patches (Only 255 from JV-series!) of which 256 are specially programmed for the JD-990. It is used by Vangelis, The Prodigy, Apollo 440, ATB, and Mirwais.

Joseph

August 15, 2012 @ 5:52 pm

Best & detailed synth sounds on the market so far!!!

Mike

May 7, 2012 @ 1:35 pm

Great Synth 24 Voice Polyphony Sickens me though...

pajacke

April 26, 2012 @ 7:17 am

@Vlado
Like it is already mentioned in the manual, one of the the 8MB SR-JV-Boards (19 available) fits into the JD990. IMHO the "Vintage Synth"board would suit best, because it expands this synth with a lot of raw synth only waveforms (who would use a JD for pianos/orchestra etc anyway)..
The available WaveformCards for the JDseries aren't very interesting (Drums, Piano etc)..

Christian Morency

April 10, 2012 @ 8:03 am

I just released a JD-VST patch editor for JD-800 and JD-990... in beta-test more info here:

http://ctrlr.org/viewtopic.php?f=61&t=858&start=257

Vlado Neychev

March 11, 2012 @ 4:43 pm

Some extra information need for possibilities to expand ROM and BANKs memory.

There is only:
Oscillators - 6MB of ROM waveform data (expandable to 16MB), 4 osc. per patch
Memory - 3 banks x 64 patches (expandable), 3 drum kits with 61 sounds

Will be glad to get some useful opinion about, after good experience with them.
Thank you!

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