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Oberheim OB-XA - User Manual

Oberheim OB-XA
35 pages
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Summary

Setting Up Your OB-Xa

Initial Configuration Steps

Guide for connecting power, tuning oscillators, and selecting sounds.

Using the Programmer

Modifying and Creating Sounds

Explains how to edit existing programs and create new sounds.

Program Memory Management

Front Panel Controls: Manual and Control Sections

Front Panel Controls: Modulation and Oscillators

Front Panel Controls: Filter and Envelopes

Filter Section Controls

Controls filter frequency, resonance, tracking, and modulation sources.

Envelope Generators: Filter and Loudness

Manages filter and loudness envelope parameters (attack, decay, sustain, release).

Rear Panel Connections Overview

Cassette Interface Operation

Cassette Data Transfer Procedures

Recording and Loading Programs

Step-by-step guide for saving and loading programs to/from cassette tape.

Cassette Interface Troubleshooting

Causes of Tape Transfer Errors

Identifies common issues leading to errors during data transfer.

OB-Xa Specifications

Summary

Setting Up Your OB-Xa

Initial Configuration Steps

Guide for connecting power, tuning oscillators, and selecting sounds.

Using the Programmer

Modifying and Creating Sounds

Explains how to edit existing programs and create new sounds.

Program Memory Management

Front Panel Controls: Manual and Control Sections

Front Panel Controls: Modulation and Oscillators

Front Panel Controls: Filter and Envelopes

Filter Section Controls

Controls filter frequency, resonance, tracking, and modulation sources.

Envelope Generators: Filter and Loudness

Manages filter and loudness envelope parameters (attack, decay, sustain, release).

Rear Panel Connections Overview

Cassette Interface Operation

Cassette Data Transfer Procedures

Recording and Loading Programs

Step-by-step guide for saving and loading programs to/from cassette tape.

Cassette Interface Troubleshooting

Causes of Tape Transfer Errors

Identifies common issues leading to errors during data transfer.

OB-Xa Specifications

Oberheim OB-XA Specifications

Synthesizer Components IconSynthesizer Components
number of voices4, 6, or 8
low frequency oscillators5
sample/hold circuitincluded
Components in Each Voice IconComponents in Each Voice
voltage controlled oscillators2
voltage controlled filters2 (2-Pole or 4-Pole low pass type, selectable)
envelope generators2
Keyboard IconKeyboard
number of octaves5 (C to C)
keyboard modesFULL, SPLIT, DOUBLE
programmable split point and transpositionsavailable in SPLIT or DOUBLE modes
Outputs and Interfaces IconOutputs and Interfaces
stereo and mono signal outputsOutput Level: 1 Volt peak to peak, 75K Ohms Impedance
cassette interfaceinputs and outputs
computer interfaceParallel Interface
Power IconPower
voltage90-130 or 180-240 Volts AC
frequency50-60 Hz
power consumption50 Watts
Weight and Dimensions IconWeight and Dimensions
width40" (101.6 cm)
depth20" (50.8 cm)
height6" (15.24 cm)
weight45 lbs. (20.41 kg)

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