MOSFET POWER SUPPLY AMPLIFIER; PHASE SWITCH (NORMAL & REVERSE); THERMAL/SHORT/OVER LOAD PROTECTION CIRCUITS; POWER & DISTRESS INDICATORS; VARIABLE LOW PASS CROSS OVER: 50 HZ–150 HZ; SOFT DELAY REMOTE TURN ON; ADJUSTABLE INPUT SENSITIVITY; REMOTE LEVEL CONTROL; 0 TO +12 DB VARIABLE BASS BOOST @ 45 HZ; RCA LOW-LEVEL INPUT; HIGH LEVEL INPUT; AUTO COOLING; S/N RATIO: >91 DB; 12" ; 1000W MAX; DIM: 14" X 14" X 14.5"