Swans Speakers - D1010MKII - Powered 2.0 Bookshelf Speakers - Full Rosewood Cabinets - Near-Field Monitors - 4'' Mid-Bass Driver & 0.8'' Dome Tweeter - Compact Computer Speakers - 34W RMS PROFESSIONAL MONITOR DESIGN - Adopts two four-channel operational amplifier chips to provide a professional active crossover of any small studio system; suitable for near-field music appreciation as a set of high cost-effective computer speakers. CLASSICAL DESIGN - Black piano lacquered front panel with special flared baffle design, which improves near field sounding quality; Rectangle port optimizes acoustic performance by reducing air noise and enhancing low-frequency bass; TL084 operates signal of four channels, while FP4.4 enhances the bass and treble designs. 4'' MID-BASS & 0.8'' DOME TWEETER - Optimizes the T/S parameters to make dynamic, pure and clear sound; double diffused bass reflex structure produces natural bass and reduces the wind noise effectively HIGH-FIDELITY SOUND- Connect the D1010MKII to different sources, including smartphones, PCs, TVs, Alexa Echo and more to bring enjoyable sound to your life. EASY CONTROL - Volume, bass and treble controls are located on the side panel for adjustments System Type: Two-way 4th vented box speaker system Frequency Range: 62Hz - 20kHz Sensitivity (2.83V / 1m): 85dB Power Range: 10-50W Rated Power: 34 RMS Active Crossover Frequency: 1.8kHz Bass Adjust: 3dB(100Hz) Treble Adjust: 3dB(10kHz) Separation: &gt; 49dB Signal-to-Noise: &gt; 74dB (unweighted) Distortion: THD &lt; 1% Input Sensitivity: 800mV Input Impedance: 32k Dimensions(W x D x H): 5.7&#039;&#039; x 8.3&#039;&#039; x 8.1&#039;&#039;