Roland JX-305 GrooveSynth

Roland JX-305 Image

The JX-305 is an awesome synth for electronic & techno musicians! It's like an MC-505 groovebox in a keyboard. All of the MC-505's excellent dance-oriented sounds are included, as well as 4MB more! Combining keyboard style patch synthesis & performance with Groove Approved dance patterns, sequences and phrases the JX-305 is a real dance production studio with 768 dance patterns, 256 User, 640 patches and 28 drum kits.

Perfect for live use with its massive 64 voices of polyphony, you can jam along with it while it's instantly playing a great techno/dance groove! Then grab anyone of the 9 real-time control knobs to start tweaking the filter, envelope, tempo, arpeggiator or LFO. All real-time edits, pattern changes, tweaks and keyboard playing can be recorded into its 8-track sequencer - a robust sequencer with quantizing and edit capabilities! If your bag is dance, trance and rave then this Groovesynth may be all you need! It has been used by Astral.

Lookup Roland JX-305 GrooveSynth Prices

The link above will take you to an eBay search for this synth to see active listings with more images, specs and information. If you don't find it there, try looking in our forum marketplace. Our marketplace gets thousands of visits every week so make sure to check back often if you want to buy or sell a synth.

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Are you looking to buy or sell a Roland JX-305 GrooveSynth? Post an ad in Gear For Sale or a request in Gear Wanted. For spare parts and repair services check out Gear Services & Other Goods. Our forums also has a Buyer’s Guide section where you can ask for advice on buying synthesizers.

45 Visitor comments
September 15, 2012 @ 2:58 pm
@adam, sorry about the delay. I don't check this page much if you want to contact me through my website, message me via I hope that this is an appropriate post as I am simply trying to help you fix your synth.
September 12, 2012 @ 9:05 pm
I brought the JX-305 as my first synth 2 years ago 2nd hand for £100. It's amazing! It's not only fun but it teaches a beginner all about many different things involved in electronic music. Sequencing, sampling & how to built tracks. The sounds on it have endless capability. The drum sets & orchestra samples are great. When you learn how to program it, it ends up being as useful as a workstation & makes you want to learn. Not a single problem mechanically so far. It's built like a tank. I've owned & tried a few synths & the JX-305 will never leave me. It's a keeper & endless fun bargain.
May 30, 2012 @ 3:02 am
Hi, to all 305 users. Did your beast die? Mine did. But fear not.
(Symptoms: Top row in display blacker than bottom row; not booting. Boot into system test menu [power-up while holding down UNDO/REDO then pressing ‘Number 7′. This tests the USER and SYS Flash] and look for Err: sys flash id not readable)
After careful resoldering of the sys flash rom (chip 1 + 7 on mainboard) and flashing it with update 107 from Roland + Utility->Factory Settings everything is fine again. Maybe there are many 305s who could be repaired and live longer?
April 3, 2012 @ 7:42 pm
I love the jx 305 synth & you can almost make anything as it covers a whole range of styles & sounds.I won't be depating with mine at all.
April 2, 2012 @ 8:11 am
I have been producing music for almost 20 years and I have a vast collection of rare analog synths. This Roland piece is my secret weapon. I have never used it for 'Trance' or 'Dance". This machine can create amazing strings and synth noises like Eno and Budd's Possible Musics. Just dive into it and ignore the cheesy "Groove" title. Also classic Roland drum kits - TR 808/909- CR-78. Great value for the true artist, ignoring fads and such....
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Rated 4.6 (1124 Votes)

  • Check Price
  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - 64 Voices
  • Effects - 24 effects including reverb, delay, chorus, etc...
  • Memory - 640 patches, 28 rhythm kits
  • Patterns - 768 Dance patterns, 256 User
  • Filter - Digital real-time & midi controllable resonant low/band pass filter
  • Arpeg/Seq - 8-Track sequencer, Arpeggiator and real-time Phrase Sequencer
  • Keyboard - 61 notes (w/ velocity)
  • Control - MIDI
  • Date Produced - 1998
  • Resources & Credits
  • Images from Synthesizer Picture Gallery (site gone).

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