Roland Alpha Juno 1

Roland Alpha Juno 1 ImageRoland Alpha Juno 1

Roland Alpha Juno-1

The Alpha Juno is a great sounding Juno type synth! Not quite as warm in sound as the previous Juno's but still a nice addition to any techno synth rig. Sliders and buttons were replaced by membrane buttons and the Alpha Dial which is used to edit and browse through the extensive selection of parameters: DCO digitally controlled oscillators, LFO, bend, ENV, pulse, waveforms, noise, PW/PWM, high pass filter, VCF (filter) with freq/env/res/LFO/kybd, VCA envelope, chorus, and more. The PG-300 synthesizer programmer gives you traditional slider control of each parameter for much easier and faster editing.

Roland Alpha Juno 1 ImageRoland Alpha Juno 1

Other nice touches include better MIDI implementation than previous Roland synths, 64 presets and 64 user patches, a nice LCD display, an LFO capable of a very slow rate for some cool sweeping effects, and a great bass sound (especially nice for acid basslines) and noise effects! It also has chord memory which is perfect for rave & techno, portamento and keyboard transposing. The Alpha Juno 1 was soon replaced by the Alpha Juno 2 which added a few MIDI & keyboard enhancements. The MKS-50 is an upgraded rackmount version of the Alpha Juno. The Alpha Juno is used by Mundo Muzique, Vince Clarke, Matt Megaton Haines, Paul Hardcastle, Massive Attack, Bomb the Bass, The Prodigy, Youth, Joey Beltram and Human Resource.

Roland HS-10 Image

Roland HS-10

The HS-10 Synth Plus 10 is an Alpha Juno for the casual home user, with a slightly less appealing cosmetic appearance, and the HS-80 was a similar repackaging of the Alpha Juno 2.

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77 Visitor comments
September 13, 2012 @ 9:45 pm
So.... Is the synthplus 10 analog?
Tim H
September 8, 2012 @ 8:20 pm
Can someone tell me if this has a Hold function where I only have to hit the key and the note just sustains? I can use the Env button and increase the sustain but eventually that fades out. I love this synth. Have had mine for 15 years.
September 2, 2012 @ 9:37 pm
Proud owner of a HS-10. I'm just going to clear this up now: The HS-10 *does not have a built-in speaker* I'm sure there was confusion in the past that snowballed as the HS-80 has speakers. OK, that felt better. The HS-10, or Alpha Juno (if you will) has a nice bite to it and I like its HPF as it doesn't lose any tone when increased. I also own a Juno 6, and I must say that (speaking for myself) I use the the Alpha a lot.
August 8, 2012 @ 2:04 pm
The Alpha Juno's filter is non self-resonant but i suppose that you could use a moogerfooger analog filter for that purpose couldn't you? I just purchased an Alpha Juno1 and i'm really excited about it! for total control over it's parameters download the Alpha Juno control plug-in or get TouchOsc or buy a PG300 which is quite expensive but full of sliders!
July 18, 2012 @ 12:36 pm
I'd recommend an AJ over a 106 to anyone getting a first poly. The biggest downside is the lack of knobs or sliders, but the sound is so much better than a 106. Incredibly more flexible and varied sound. You only have to go through the presets - the hoover and the distorted kick - no way to get those on a Juno, not even close. Was flawed (needed a self oscillating filter and knobs/sliders) but still a v. useful poly. I'll keep my AJ but happily let my 106 die. AJs are great all round polys for general use. Smooth pads and good at metallic edged sounds. Better blips and boings than Junos too.
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  • 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.
  • Demos & Media
  • YouTube Thumbnail
    Roland Alpha Juno 2 | demo
    by WC Olo Garb

    Audio Clip 1 - Here's a nice demo of various sounds that the Alpha Juno can produce.

    Manual - Get a copy of the Alpha Juno-1 manual here in PDF format.

    SysEx Basics - Helpful guide to controlling and editing the Alpha Juno in real-time from a sequencer or Midi controller using SysEx Midi data.

    Patches for Mac - Lots of great patches for use with the Alpha Juno synthesizers. These are Midi Sysex files compressed in a Macintosh friendly format.

    Patches for WinPC - Lots of great patches for use with the Alpha Juno synthesizers. These are Midi Sysex files compressed in a Windows/PC friendly format.

  • Specifications
  • Polyphony - 6 voices
  • Oscillators - 1 DCO per voice: Pulse, Sawtooth, Sub, noise waveforms. 1 sub-oscillator.
  • Effects - portamento, chord memory, transpose, chorus
  • Memory - 64 User, 64 preset, backup to cassette
  • Filter - 24db analog lowpass filter
  • Envelopes - ADSR Envelopes
  • Arpeg/Seq - None
  • Keyboard - 49 note keyboard (no velocity or aftertouch)
  • Control - MIDI
  • Date Produced - 1986
  • Resources & Credits
  • Images from
    and this site.

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