This section of the site willl offer manuals, related software, older software versions (AudioCore) , and EPROM images for all our discontinued products.

Please note that the software available for the units requires access to an EPROM programmer - the DP100 and RT1 use a 512K EPROM, with the DP200 and DP202 requiring a 1M EPROM.

There are no software updates available for the DS400 ;)



Note that manuals and datasheets are in .pdf Adobe Acrobat format. Download the latest reader from their site by clicking on the logo.

AudioCore V6.00


This version of AudioCore is the last version to control the DP100/200/202 as well as all the current units, excluding the 4 Series. Click logo to download .


RT1 Remote Software

This software allows remote viewing of the RT1 display and complete control over the unit, as well as printouts of the analysis. It is a DOS program, but remains compatible with Windows, including XP. Click screenshot to download.