Above is a picture of an Oberheim OB-X 4 voice synthesizer
The OB-X came in 4, 6, and 8 voice configurations. See sound examples below to see how fat 4 voices can be.
The left side of the controls of the Oberheim OBX.
The AUTO button on the left AutoTunes the OB-X. Let Unit warm up 5-10 minutes then press AUTO button so it's tuned to running temp.
|The right side of the controls of the Oberheim OB-X. The ABCD buttons select the group (bank) and the 1-8 select the Program (patch)|
|The right side wood panel of the Oberheim OB-X|
|The left side wood panel of the Oberheim OB-X|
|The left side on the back of the Oberheim OB-X|
|The middle on the back of the Oberheim OB-X|
|The right side on the back of the Oberheim OB-X|
|Close up left side of the OB-X|
|Close up of the OB-X showing the oscillators|
|Close up right side of the OB-X showing the filter on the left and the envelopes on the right|
|To ship an OB-X, use a Road case to ensure safe delivery|
Four Sound examples (recorded 11/10/2012 directly from OB-X )
The first mp3 file is of the first preset A1 and shows how super fat 4 voices can be. The OB-X is in Unison mode so all 4 voices are used for each key press.
The second mp3 file is of the second preset A2 and shows how the Sample and Hold can modulate the filter frequency to create some great sounding blurpy effects. The OB-X is in Unison mode so all 4 voices are used for each key press.
The third mp3 file is of the preset A3 and shows how 4 voices can be sounded. Four octaves of the C key are played so you can hear each voice come in. The OB-X is not in Unison mode so you get 4 single voices.
The fourth mp3 file is of the preset B1 and shows how super fat "Rush" like sounds can be made. The OB-X is in Unison mode so all 4 voices are used for each key press.
Three Tips for the Oberheim OB-X
1. ALWAYS turn on the unit and let warm up for 5 -10 minutes, THEN press auto tune (AUTO button on far left) The OB-X will drift until it reaches operating temperature. It is best to just wait, let the Unit reach operating temperature, then press AUTO.
2. To EDIT a preset (have the knobs work) you need to press the EDIT button first. The presets are selected by choosing 1 to 4 of the ABCD buttons, and then pressing a number button on the right, then to change the frequency of the filter, or other control, press the EDIT button then move the control.
3. To SAVE a preset, press the WRITE button on the far right and HOLD it for 2-3 seconds, the light on the WRITE switch will come on and the next Preset selected will be written over with the Preset you currently are playing. There are no "Are you sure you want to erase" warnings it just does it. Hold the WRITE button until a number is pressed.
Below are pictures taken in the late 1990's of the same OB-x shown above.
I mean literally I took 35 mm pictures had them developed and scanned them in my computer
The Oberheim OB-X is a piece of art, utilitarian, efficient and ergonomic.
Notice the block layout
Main Controls to the left , Extensive Modulation next, then Oscillators in the middle, Filters, then Envelopes
Real wood sides ....ooooh. Yes she is a beauty.
Most synths you can't grab an oscillator with one hand and the filter with the other. But it is the sound.
And the OB-X has fins
Hands get cold at a gig? These little fins are like little wall heaters.
Notice the outputs. All alone...The power enters on the other side , the transformer and CPU miles away
This baby is so loud on most mixers I just have to turn down the OBX's volume.
Open up and say AAAHHH Look at the hinges in the above pictures. 4 screws and she is wide open.
Looking down the voice alley. In this case 4 voices. CPU at the end
In the middle is an Encore electronics midi kit. Power enters on the left.
A closer look
This is a close up of the voice cards.
A look from above
This is the Kenton midi kit that was in this OBX. While it served its purpose for many years,
I removed it in favor of the newer Encore midi Kit
And yet another look at a voice card.
Back to Oberheim
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