the t.amp S-75 MK II, Power amplifier, 2 x 75 W at 4 ohms, 2 x 45 W at 8 ohms, Balanced inputs with XLR and jack, Bridgeable, Speaker Twist and terminal connections for speaker out, All protection circuits including Softstart, Switchable input level of -0 +4 db, Damping factor 150, For all applications where no fan is desired, 19"" Rack mount 1U, depth 33 cm, Weight: 7.5 kg