TECHNOLOGY BASS BOOST Give more juice to your sound. Two-step Bass Boost allows precise control for optimal bass, giving you enhanced sound impact based on your music choice and style. RCA Level Input Use your RCA interconnect cables for hassle-free linking of the amplifier to the source unit. Speaker Level Input Allows you to connect the amplifier to your source without RCA-type inputs and without the need for adapters. Variable LPF Allows adjustment of the Low-Pass Filter according to your listening preference. Variable HPF Adjust your High-Pass Filter frequency for greater audio flexibility.   Amplifier Class  >  Class AB No. of Channels  >  4/3/2 RMS power output  >  70 W x 4 RMS (4Ω) 95 W x 4 (2Ω) 190W x 2 (Bridged) Frequency Response  >  15 Hz to 22 kHz Total Harmonic Distortion(THD)  >  <0.1% S/N Ratio  >  >80dB Speaker Level Input  >  Yes Crossover Type  >  Variable HPF/LPF Crossover Frequency  >  32Hz to 320 Hz Bass Boost Frequency  >  50 Hz Baas Boost Level  >  Min/Mid/Max Dimensions  >  343 mm x 55.5 mm x 240 mm