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Ensoniq SD-1, VFX-sd and VFX
Operating System Disks & EPROMs


After a VFX-sd or SD-1 keyboard is reinitialized, the sequencer operating system must be reloaded from disk in order for the sequencer to be operational. These O.S. disks contain the most recent operating system, as well as hundreds of sounds, the factory presets, and demo sequences. The SD-1 O.S. 3.00 Disk is an older operating system which is needed if your firmware is lower than version 4.0 (see below).

The EPROM chips will update the firmware in an SD-1 to the latest version. (O.S. 4.0 and later disks will incompatible if the internal firmware is lower than version 4.0. To determine the version in your keyboard, press the Presets button, and while holding it down, press the Master button.) The two chips are user installable, and come with complete instructions. The pricing below requires the trade-in of your old chips; a $10.00 chip charge is added to all EPROM orders, and this fee is refunded upon return of the old chips.

VFX-sd Operating System 2.10 Disk (Part #VSDOS) Buy $15.95
SD-1 Operating System 4.10 Disk (Part #SD1OS) Buy $15.95
SD-1 Operating System 3.00 Disk (Part #SD1OS3) Buy $15.95
SD-1 Operating System 4.10 EPROMs (Part #SD1EPR) Buy $39.95


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Download or order a demo disk of sounds for the VFX-sd or SD-1.

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