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

001 A1 Brass Ensemble

002 A2 Clavinet

003 A3 Low Strings

004 A4 Electric Piano

012 B4 Electronic Piano

013 B5 Pipe Organ

014 B6 Xa Chorus

Year of release:	1980
Polyphony:	4-6-8-voice
Sound generation method:	analog
Keyboard:	61-key
Preset memories	32
MIDI:	no
Keyboard modes:	single
Sound expansion capabilities:	no
Sequencer	no
Arpeggiator	no
Effects	no
Touch sensitivity	no
Aftertouch	no
Display:	no
Accessories:	sequencer (DSX) Footswitches: Sustain, Hold, Program Advance Foot Pedals: Filter, Vibrato
Power	90-130 or 180-240 Volts AC, 50-60 Hz, 50 Watts
Dimensions	40″ (101.6cm) wide, 20″ (50.8cm) deep, 6″ (15.24cm) high
Weight	45 lbs. (20.41 kg)

Year of release:	1978-79
Polyphony:	5-voice
Sound generation method:	analog
Keyboard:	61-key
Preset memories	40
MIDI:	no
Keyboard modes:	single
Sound expansion capabilities:	no
Sequencer	no
Arpeggiator	no
Effects	no
Touch sensitivity	no
Aftertouch	no
Display:	yes, 7-segment lcd
Accessories:	sequencer
Dimensions
Weight

Year of release	2015
Polyphony	1129 voices (Digital Synth/Drum Kit: 128, Analog Synth: 1) (Max. polyphony of the Digital Synth parts: 64 voices)
Sound generation method	Virtual Analog
Keyboard	37 mini keys (with velocity)
Part multitimbrality	4 Parts (Digital Synth Part: 2, Drums Part: 1, Analog Synth Part: 1)
Preset memories	Digital Synth Tone (SuperNATURAL Synth) Analog Synth Tone PCM Drum Kit * For an analog synth tone, the oscillator, sub-oscillator, and filter sections consist of analog circuits.
MIDI	in, out
Sound expansion capabilities	n/a
Sequencer	yes, 4-part pattern sequencer
Arpeggiator	yes
Effects	yes Effect1 (Distortion, Fuzz, Compressor, Bit Crusher) Effect2 (Flanger, Phaser, Ring Mod, Slicer) Delay: 2 types Reverb: 6 types
Velocity	yes
Controllers	Pitch Bend/Modulation Wheel
Vocal functions	Vocoder Auto Pitch Auto Note
Display	yes
Connectors	Headphones Jack: Stereo 1/4-inch phone type Output Jacks (L/MONO, R): 1/4-inch phone type Input Jack (LINE(MONO) / Guitar Input): 1/4-inch phone type MIDI Connectors (IN, OUT) USB COMPUTER Port (USB Hi-Speed AUDIO/MIDI) (Use a USB cable and a computer with a USB port that support Hi-Speed USB.) DC IN Jack MIC Input Jack: XLR type, unbalance
Power consumption	1,000 mA
Accessories	Owner’s Manual AC Adaptor Microphone
Dimensions	Width: 575 mm (22-11/16 inches) Depth: 245 mm (9-11/16 inches) Height: 85 mm (3-6/16 inches)
Weight	2.2 kg 4 lbs. 14 oz.

Year of release	1997
Polyphony	12 voices
Sound generation method	Virtual Analog
Keyboard	n/a
Waveform memory
Preset memories
MIDI	in, out, thru
Sound expansion capabilities	n/a
Sequencer	no
Arpeggiator	yes
Effects	yes
Velocity	yes
Display
Aftertouch
Display	yes
Options
Power consumption	12V 1A power adapter
Dimensions
Weight

Year of release	1991
Polyphony	32 voices (single mode), 16 voices (double mode)
Sound generation method	AI² synthesis system (fully digital processing)
Keyboard	61 notes, with initial and aftertouch sensitivity
Waveform memory	PCM 48 Mbits
Preset memories	200 Program and 200 Combinations
MIDI	in, out, thru
Sound expansion capabilities	cards
Sequencer	Yes, 10 songs, 100 patterns, 48,000 notes, 16 tracks, 16 timbres (dynamic voice allocation)
Arpeggiator	no
Effects	yes
Velocity	yes
Display	LCD 64 x 240 dots, full dot matrix, with backlight
Aftertouch	yes
Display	yes
Options	RAM card (SRC-512), ROM card, PCM card
Power consumption	20 W
Dimensions	1059.5 (W) x 344 (D) x 115.5 (H)
Weight	01/W FD ….. 13.9 kg 01/W ….. 13.4 kg

Year of release:	1996
Polyphony:	48 voices
Sound generation method:	PCM
ROM	8 Megabytes of 16-bit sample ROM, including acoustic instrumental sounds, waveforms, and noise
Preset memories	199 factory preset programs, and 100 factory preset setups
Display	240 x 64-pixel backlit fluorescent graphic display with adjustable contrast (backlit blue)
MIDI:	in, out, thru
Sound expansion capabilities:	Diskette, Hard Disk, CD-ROM
Sequencer	yes
Arpeggiator	no
Effects	yes
Velocity	yes
Aftertouch	yes
Accessories	Sampler board, disks, SIMMS, output board
Dimensions	16.9 in.* 43 cm. width 13.9 in. 35.4 cm. depth 5.1 in. 13 cm. height
Weight	24.65 lb. 11.2 kg.

Year of release:	1994
Polyphony:	64 voices
Sound generation method:	PCM
Preset memories	5×128 User, 3×32 Performance, 5×2 Rhythm Set
Display	40 characters, 2 lines LCD (backlit blue)
MIDI:	in, out, thru
Sound expansion capabilities:	DATA Card (PN-JV80 series, M-256E/512E) PCM Card (SO-PCM 1 series) Expansion Board (SR-JV80 series)
Sequencer	no
Arpeggiator	no
Effects	EFX: 40 types Chorus: 1 type Reverb: 1 type
Velocity	yes
Aftertouch	yes
Accessories	Owner’s Manual AC cord
Dimensions	482(W) x 281(D) x 88(H) mm 18-15/16″ (W) x 11-1/16″ (D) x 3-1/2″ (H) inches (EIA -2U rack mount type)
Weight	5.0kg / 11 lbs 1 oz

Year of release:	2019
Sound generation method:	Virtual Analog
Keyboard	49 keys
Patches	Five banks of 128 patches each
Combinations	384
Polyphony:	8 voice
Responds to velocity:	yes
Aftertouch	poly aftertouch
MIDI:	in, out, thru
Connections	Audio, CV, Gate
Arpeggiator	yes
Sequencer:	no
Effects:	yes
Controls:	rotary knobs, buttons, wheels, ribbon
Options	pedals, footswitches
Dimensions:	80 x 35 x 10.3 cm (31.5 x 13.78 x 4.05 inches)
Weight:	10kg (22.05 lbs)

Year of release:	2007
Sound generation method:	64MB PCM (Hi – Hyper Integrated) Synthesis System
Keyboard	25 keys
Programs	640
Combinations	384
Polyphony:	62 (single mode), 31 (double mode)
Responds to velocity:	yes
Aftertouch	transmits
MIDI:	in, out
Accessories	AC adapter, Operation guide, CD-ROM (microX Editor/Plug-In Editor, KORG USB-MIDI driver, Parameter guide, External Control Template)
Arpeggiator	yes, double polyphonic
Sequencer:	no
Effects:	yes
Controls:	rotary knobs
Options	pedals, footswitches
Dimensions:	606 × 226 × 80 (mm)
Weight:	2.4 kg

Oberheim OB-Xa audio demos

Oberheim OB-Xa photos

Oberheim OB-Xa manuals

Oberheim OB-Xa factory patches

Oberheim OB-Xa specs

Oberheim OB-Xa links

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