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Roland Jv-30

16 Part Multitimbral Synthesizer (1991)

Roland JV30

"Keyboard oriented to GS-GM Midi compatibility with a simplified synthesis edit.
Later, the JV-30 has been updated to JV-35 model with some memory enhancements."

 Main Data 

Roland JV30 made in Japan

Company: Roland
Model: JV-30
Class: synthesizer
Country: Japan
Weight: 6,6 Kg
Dimensions: 978 (w) x 279 (h) x 84 (d) mm
Keyboard: 61 keys
Dates: 1991
Display: 16 X 2 Lines LCD
Synthesis: PCM rompler
Polyphony: 16 voices
Multitimbric: 16 parts
Filter: digital lowpass
LFO: 1 modulator
Envelope: 1 ADR
Memory: 128 slots
Effect: 2 engines
CPU: Renesas H8/532
DAC: D6376GS


KEYBOARD 61 velocity keys, standard pitchbender + modulation.
Main display features a 16 X 2 Lines LCD display, 58 push buttons and 5 sliders:  edit palette function 1 / 2 / 3- main volume- data entry.

Back panel connector terminals:
- Midi interface
- main signal out
- headphones
- 2 pedal inputs for HOLD and SUSTAIN functions.
- Power supply external PSU with negative center +(- 800 mA. 

Roland JV30 reset:
FACTORY RESET

PRESS CHORUS + REVERB (ABOVE INIT) TOGETHER THEN PRESS VALUE UP

- No official VST plugin
- no known samples library

Have some JV30  sample set you want to share? CONTRIBUTE :) 

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 In details 

CPU

VOICE main (mask) CPU H8/532 (at IC9) part of manages up to 24 voices polyphony with a 16 bits DAC UPD6376GS.

A JV-30 tone is composed by one or various PCM multisample - internal samples cannot be really edited just like previous classic digital model Roland U-20. 

WAVETABLE up Internal ROM (3 X IC) wavetable features 445 tones (317 GS + 128 drums) or samples at 16 bits resolution mainly derived from classic Roland Canvas SC-55.  Each tone offers 8 variations presets ready to go, easily accessible from panel.JV sounds are organized in instruments families (eg: brass, piano, orchestral) mostly bread and butter sounds

PERFORMANCE system manages up to 16 parts each and some parameters:
- volume mix + effects send
- fat mode: stacks 2 voices and adds a panning position
- otave add 1 octave lower layer
- dual: 2 different tones on a layer
- split defines 2 zones for split play
- solo mode (monophonic)
- transpose: up to 12 tones
- panning position 

performance

LFO / EG / FILTER

Filter

FILTER 

classic resonant filter with single cutoff parameter.

LFo

LFO

a simple delayed vibrato modulation with 2 parameters:
 - adjustable frequency rate
- depth amount

Envelope

Envelope

section features a simple ADR (attack / decay / release) for amplitude: not really articulated.

EFFECTS DSP offers 2 engines A-B:
- ENGINE A: 8 chorus models: classic, flanging and short delay 
- ENGINE B: 8 reverb models: hall, plate, delay and room.

MIDI good implementation for its time: exclusives systems that can access to all in-deep edit parameters.

MEMORY:
- 8 performances
- 128 ROM preset tones
- 128 RAM slots
- 9 ROM + 9 RAM drum kits.
Sounds can be saved by Midi sysex 

Battery replacement: CR-2032 in battery holder. 

 battery replacement

MAINTENANCE AND REPAIR  typical issues are:
- old tact switches for the buttons, replacement is quite easy but involves soldering
- Display flickering, try to search for cold solder joint.

repairing the mainboard

Our Verdict 

" An early digital JV machine limited to general Midi purposes, with limited sound edit. Today at cheap price, but probably with technical issues.     " 

Sound 
quality

Interface

Build
 quality

Rarity

Quality / 
price

Overall

CONS

- only GS structure
- limited sound edit

PROS

- good for GS canvas
- cheap

Are you a Jv30  user? do you like it? You do not agree with our review?  Let us know in the comment field just below 

DISQUS COMMENTS WILL BE SHOWN ONLY WHEN YOUR SITE IS ONLINE

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 JV-30 Related Models

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JV-80

(1992) 28 voices - 61 keys - first of the series, more or less the Jv30 synthesizer version. Rackmount version is JV-880.

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JV-35

1993) 28 voices updated JV-30 with bigger memory and some extra features.

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Jv-50

(1994) 61 keys, 28 voices. Same as JV 35 with sequencer and floppy drive.

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Jv-90

 (1994) 76 keys - 28 voices - updated JV-80 synth series.

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Jv-1000

JV-1000 (1994) 76 keys a  28 voices workstation with sequencer. JV keyboard series then replaced by XP series.

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Jv-1080

(1994) 64 voices -rackmount modules updated then to model 2080.

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