Categories
Analog Polyphonic Synthesizer Synthesizer

Oberheim OB-Xa

Classic polyphonic analog synthesizer

Classic synth widely used in many genres / styles of music of the early-to-mid 1980s.

Oberheim OB-Xa audio demos

Oberheim OB-Xa photos

Oberheim OB-Xa manuals

Oberheim OB-Xa factory patches

Oberheim OB-Xa specs

Year of release:1980
Polyphony:4-6-8-voice
Sound generation method:analog
Keyboard:61-key
Preset memories32
MIDI:no
Keyboard modes:single
Sound expansion capabilities:no
Sequencerno
Arpeggiatorno
Effectsno
Touch sensitivityno
Aftertouchno
Display:no
Accessories:sequencer (DSX)
Footswitches: Sustain, Hold, Program Advance
Foot Pedals: Filter, Vibrato
Power90-130 or 180-240 Volts AC, 50-60 Hz, 50 Watts
Dimensions40″ (101.6cm) wide, 20″ (50.8cm) deep, 6″ (15.24cm) high
Weight45 lbs. (20.41 kg)

Oberheim OB-Xa links

https://oberheim.com

Categories
Analog Polyphonic Synthesizer Synthesizer

Sequential Circuits Prophet-5 Rev. 2

Classic polyphonic analog synthesizer

The super-classic Prophet-5 rev. 2, from the late 1970s / early 1980s.

Used by so many famous acts of the late ’70s up until the mid ’80s and beyond (check out for example the famous oscillator sync sound used by “The Cars”).

Super warm sounds, beautiful strings, pads, bass etc. but also incredibly good for special FX, thanks to the strong modulation capabilities on board.

Sequential Circuits Prophet-5 Rev. 2 Audio Demos

Sequential Circuits Prophet-5 Rev. 2 photos

Sequential Circuits Prophet-5 Rev. 2 manuals

Sequential Circuits Prophet-5 Rev. 2 factory patches

Sequential Circuits Prophet-5 Rev. 2 specs

Year of release:1978-79
Polyphony: 5-voice
Sound generation method:analog
Keyboard:61-key
Preset memories40
MIDI:no
Keyboard modes:single
Sound expansion capabilities:no
Sequencerno
Arpeggiatorno
Effectsno
Touch sensitivityno
Aftertouchno
Display:yes, 7-segment lcd
Accessories:sequencer
Dimensions
Weight

Sequential Circuits Prophet-5 Rev. 2 links

sequential.com

Categories
Analog Polyphonic Synthesizer Synthesizer

Roland Alpha Juno-2

Digital/Analog synthesizer

The slightly improved successor to the original Alpha Juno. Great analog sound and one of the most famous Techno sounds ever, the “hoover” sound.

 Roland Alpha Juno-2 audio demos

Original Sound Chart Factory Programs (the “mythical” bank found in the earlier production Alpha Junos – thank you http://www.llamamusic.com/mks50/mks-50_patches.html for the information and data!)

Factory Programs A (same as Alpha Juno and MKS-50)

Factory Programs B (same as Alpha Juno and MKS-50)

 Factory Programs 2 (alternative factory set)

Roland Alpha Juno-2 photos

Roland Alpha Juno-2 factory patches in sysex

Roland Alpha Juno-2 specs

Year of release:1985
Polyphony: 6-voice
Sound generation method:analog
Keyboard:61-key
Preset memories64 ROM + 64 RAM
MIDI:In, out, thru
Keyboard modes:single
Sound expansion capabilities:no
Sequencerno
Arpeggiatorno
Effectschorus
Touch sensitivityyes
Aftertouchyes
Display:yes, LCD
Accessories:Memory cartridge M-64C
Dimensions972mm (W) x 246mm (D) x 85mm (H)
38 ¼” (W) x 9 ⅝” x 3 ⅜” (H)
Weight7.5 kg / 16lb 9oz

Roland Alpha Juno-2 links

www.roland.com

Categories
Analog Polyphonic Synthesizer Synthesizer

Bit 99

Digital/Analog synthesizer

The slightly improved successor to the original BIT One. Great analog sound.

Crumar Bit 99 audio demos

Factory Programs Set 1

Factory Programs Set 2

Crumar Bit 99 photos

Crumar Bit 99 manual

Crumar Bit 99 factory patches in .wav

Crumar Bit 99 specs

Year of release:1985
Polyphony: 6-voice
Sound generation method:analog (DCOs)
Preset memories 99
MIDI:yes
Keyboard modes:single, split, dual 
Sound expansion capabilities:no
Sequencerno
Arpeggiatorno
Effects no
Touch sensitivityyes
Aftertouchno
Keyboard61-key

Crumar Bit One links

www.crumar.it

Categories
Analog Polyphonic Synthesizer Synthesizer

Roland JX-8P

Analog Polyphonic Synthesizer

The Roland JX-8P is a six-voice polyphonic synthesizer that came out in 1985.  It is a typical “hybrid” synth of that era, featuring DCOs but VCFs and VCAs.

The sound is – like its relatives JX-10 and MKS-70, very “lush”, classy and full. The keyboard is dynamic and has aftertouch. There are many editing parameters available, and also they typical Roland on-board chorus, and portamento.

Since the synth was built at a time when digital technology had exploded and all synths started looking like the DX7, the JX-8P has no knobs – but relies on multi-functions, buttons and a slider to edit the sounds. The PG-800 programmer can be used to program the synth with a more traditional “analog style” interface. The Roland JX-8P features full MIDI, and also accepts a cartridge to store 32 additional patches.

Roland JX-8P audio demos

Factory patches I

Factory patches II

Roland JX-8P photos

Roland JX-8P specs

Year of release1985
Polyphony6-voice
Sound generation methodanalog (DCO)
Keyboard61-key
Preset memories64 ROM + 32 RAM + 32 cassette
MIDIin, out, thru
Sound expansion capabilitiesno
Sequencerno
Arpeggiatorno
Velocityyes
Aftertouchyes
OptionsProgrammer PG-800, Memory Cartridge M-16C, Pedal Switch DP-2, Carrying Case AB-2
Dimensions 38-7/16″ (W) x 14-3/4″ (D) x 3-9/16″ (H)
Weight 11.5 kg

Roland JX-8P manual

Roland JX-8P links

www.roland.com

Categories
Analog Polyphonic Synthesizer Synthesizer

SIEL DK 80

 Dynamic Bitimbric Synthesizer

The SIEL DK 80 is a nice mid-level synth from 1985. It features:

  • 12 voices
  • Double sound generation
  • Dynamic keyboard
  • Advanced MIDI functions
  • 87 programmable parameters
  • Up to 150 programs on line
  • 2-track real time polyphonic MIDI sequencer.

The “sonic character” of the DK 80 is very nice and interesting, and it’s a classic “hybrid” with DCOs and VCFs/VCAs. Still, it’s capable of very powerful and “fat & gluey” sounds.

The DK 80 can also have an optional pedalboard, called “PD 80” which features two pedals: the one on the left is programmable, and the one on the right is dedicated to Sustain. A great setting for the left pedal is to “scroll” the patch programs, because – in pure mid-80s style – one needs to select the program with the keypad and then press “Enter”. With the left pedal, it’s much quicker to go through the programs to play / check them out. It’s also great for live use.

The left pedal can be assigned to:

  • Start/Stop of the sequencer,
  • Program Up
  • Key Data To MIDI

SIEL DK 80 audio demos

Resident factory sounds

SIEL DK 80 specs

Year of release:1985
Polyphony:12 voices
Sound generation method:analog
Preset memories40 ROM + 10 RAM, 50 + 100 on RAM card
MIDI:in, out, thru
Keyboard61 keys
Sound expansion capabilities:no
Sequenceryes
Arpeggiatorno
Velocityyes
Aftertouchno
Dimensions 
Weight 

SIEL DK 80 photos

SIEL DK 80 manual

SIEL DK 80 links

Categories
Analog Polyphonic Synthesizer Synthesizer

Bit One

Digital/Analog synthesizer

This black beauty is one of the many semi-unknown Italian synthesizers of the ’80s.  It is a typical digital/analog hybrid, sporting two DCOs, VCF, VCA, and two LFOs.  The programming on this synth can be a little cumbersome – it was the era of knob-gone digital after all…  so programming is similar to other synths of the time:  a keypad to change the parameter, and two up-down buttons to alter the value of the parameter dialed.  The parameter list and flow diagram are stenciled on a large graphic in the middle of the front panel.

Several keyboard modes are provided;  you can split the keyboard, or layer two sounds (double).  There’s even a very cool Unison button that makes for some excellent, fat sounds.  The pitch and mod wheels are above the keyboard, and on top of each other, as opposed to a more traditional side-by-side – for this reason, the Bit One is a nice, compact five-octave synthesizer.

The Bit One is a “stereo” synth, providing Upper (left) and Lower (right) separate outputs.  The notes will come out of each channel at random.  I’m not sure if it is a problem with my machine in particular or if all Bit Ones are like this.  Best to stay in mono (Upper) if you don’t like the resulting effect.

There are four two-character displays:  (parameter) value, address (the parameter selected), Lower Prg and Upper Prg.  A compare button is also provided.

Crumar Bit One audio demos

Crumar Bit One photos

Crumar Bit One specs

  • great analog sound;
  • dynamic keyboard allows for nice expression;
  • unison mode;
  • two LFOs

Bottom line:  If you want the “Sound of the ’80s”, this is a good choice.

Year of release:1984
Polyphony:6-voice
Sound generation method:analog, 2 DCOs
Preset memories62
MIDI:in, out, thru
Keyboard modes:Lower, Upper, Split, Double, Unison
Sound expansion capabilities:No.  Presets can be loaded/saved from/to tape.
Sequencerno
Arpeggiatorno
Effectsno
Touch sensitivityyes
Aftertouchno
Other features:Detune, Noise

Crumar Bit One manuals and documentation

Here’s a .pdf of the original Factory Preset Name List, kindly provided by Don Turnock – who used to sell Crumar synths in the ’80s- thank you very much, Don, for providing all of us with precious, rare information on this synth!

And here’s a .pdf of the original Factory Preset Name List of Version II and III of the Bit One, plus MIDI information on the Bit 01, also provided by Don Turnock – thank you, Don!

Crumar Bit One factory patches in .wav

Crumar Bit One links

www.crumar.it

Categories
Analog Polyphonic Synthesizer Synthesizer

SIEL Cruise

The Cruise is what was once referred to a “multi-instrument” keyboard, that is a synth having two or more sections designed to emulate a particular instrument, i.e., brass, strings, bass, organ, piano and so on.

They were popular in the early 80s, and other examples of this breed are the Crumar Orchestrator, the ARP Quadra, and the Korg Trident.

SIEL Cruise manual

SIEL Cruise specs

Year of release1981
Polyphony Mono, Poly
Sound generation methodanalog
Keyboard49-key