The DS-1 display board is used in the TPC-100 Prism Clone to display the expand/compress level and the compressor status. The board is supplied as a 2 up panelized array which gives all 4 displays on one channel of the TPC-100.  The boards can remain connected together to match the display pattern of the TPC-100 front panel. 

Two board sets are required for a two channel prism clone. 

These are boards only, not a kit. Parts to be ordered are listed in the build guide for each board.

DS1 Build Guide:  http://www.ortelligent.com/DS1%20build%20guide.pdf

Full manual for the TPC100 Prism Clone: http://www.ortelligent.com/TPC100%20Manual%20Rev%20A.pdf