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
Aidar
April 24, 2014 @ 2:01 am
Killer synth, though you could argue that the sounds are somewhat too static for modern music made on synths where every parameter can be controlled by an LFO. Though nothing can beat the authentic hoover, of course. Used this beast with a talkbox on this track: https://soundcloud.com/shopengauers/be-your-fool
Binky Binx
March 2, 2014 @ 12:42 am
Saw PWM was also done on the Roland D-50/D-550, not real analog but it's there.
elieman
December 12, 2013 @ 7:08 pm
Rectangular SAW is much easier than Saw PWM. PWM is typically generated off a Saw waveform using a comparator and reference level - when the saw is greater than the reference, the output switches and vice versa - this gives a variable pulse width depending on the reference (which can be another oscillator or modulation source). The result is that it's extremely easy to produce the rectangular PWM, otherwise more involved to do the SAW PWM - which may in fact be digital.
Marcel[B]
December 11, 2013 @ 4:23 am
Does anyone know why the PWM on the sawtooth oscillator was never copied by any other synth? It sounds really different from PWM on a pulse oscillator, and it can make some real good and very original sounds (of which the "Hoover" sound is only but one example).

Apart from a few software synths no one ever made SAW PWM possible again. Not even Roland themselves. Or do I forget some synth?
rm
August 28, 2013 @ 2:39 am
has been used lot by artists proto techno/house era. didn't love due to lack of pure rawness of sound but overall it's a really good synth and investment. one thing to know is alpha has a unique "haunting" tone overall on it, you can spot it easily on records which may be goo or bad.
 
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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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