Audio board for IRIS 4D/60T

[V36B::MCNALLY]

Hey IRIS folk,

	We are thinking of producing audio output from some signals that
we have generated.  Now, we could design a board that performed all of
the filtering, modulating, and d/a'ing or we could buy a MAC (well you
get the idea).  Now, in the before times, SGI supported an audio board.
Does SGI still support that audio board (oh, by the way I am using
a 4D/60T)?  If so, could you fill me in on cost? and some feature and
performance data?  

			Thanks,
				Steve Swenson
				SWENSON at NUSC-WPN.ARPA
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