. 4-channel power amplifier with DSP control 4 x 1200 watts @ 4 and 2 ohms, 2 x 2400 watts bridged @ 4 ohms 10 Hz - 22 kHz frequency response with 120 dB dynamic range 24-bit/48kHz DSP with FIR and IIR filters, parametric EQ, crossover, delay, RMS and peak limiters DC, overcurrent, thermal and short circuit protection, soft start, clip and SMPS overload limiters Dual temperature-controlled fans Power factor correction (PFC) Menu driven 4-line display with rotary encoder and security lock Includes control and monitoring software and LD Systems® Loudspeaker Preset Library