Help to find IRF 9110 or equivalent

I am in processing with an AlephOno.I want to have balanced outputs but seems the irf 9110 is very hard 1)to find correct datasheet 2)to buy...

Anyone knows a source to buy it?And find the datasheet?

If obsolete,what could I use instead?/input capacitance/power and voltage requirements/available?

Many thanks to everyone could help-I guess the AlephOno has superb sound-thanks Wayne!!!!!...And Nelson too!!!