Equipped with dual RCA inputs the Studio 1280DB can produce up to 42W RMS of audio output. A 4 inch bass driver and front facing bass reflex port ensures bass notes are robust and rich in sound. Connect to multiple devices and personalize your listening experience with the bass and treble adjustment dials located on the active speaker. A remote control also controls the volume and mute function.Features Active bookshelf speaker system with 42W total power output Supports Bluetooth, Optical, Coaxial and Dual RCA inputs Bass, treble and master volume dials located on the side panel Wireless remote control for volume adjustment and mute Calibrated, flared front-facing bass reflect port 100% MDF wooden enclosures to minimize acoustic resonanceSpecificationsPower output : L/R: 21W+21W RMSSignal to noise ratio : 85dBA (A)Noise level : 25dB (A)Input sensitivity : LINE IN1: R/L:45050mV...... ....LINE IN2: R/L:55050mV........ ....OPT/COA: R/L:50050mFFS.......... ....Bluetooth: R/L:70050mFFSFrequency response : 55Hz-20KHzBass unit : 4 inch (116mm)Tweeter unit : 13mm silk dome tweeter