yes it is, just use two rca y-splitters to give both amps a stereo signal(which will be mixed mono when you bridge the amp). Follow the manufacturer's diagram for bridging the amps for your speaker output. Another way is if your amps have pre-amp outputs, just hook up your second amp to the first amp's outputs.

damn I keep replying late!!

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2004 300M SPECIAL
Alpine CDA 9833
Alpine Pxa-h701
Alpine Rux-c701
Rockford fosgate p400-4
Rockford fosgate p4004
Hifonics BX 1205D
JBL c608 GTi
JBL p963
Infinity 2.5" center channel
Alpine type R 12"(2)
200 amp alternator
yellow top battery
0 awg power and ground (welding cable) 300 amp anl fuse
all active SQL set up with 2000 watts rms