Edifier R1855DB Active Bookshelf Speakers 2.0, Bluetooth v5.1 & Optical/Coaxial/Line In, Sub Out, 70W RMS, 60Hz20kHz, 4" Nomex Mid Bass 19 mm Silk Tweeters, Inclined Design, with Remote, Black

70W RMS TOTAL POWER: 38 W mid-bass and 32 W treble via Class-D amps deliver clear, distortion-free sound across 60 Hz–20 kHz for immersive, room-filling audio 4" MID-BASS DRIVERS & 0.7" TWEETERS: Nomex diaphragm mid-range/bass drivers and silk-dome tweeters ensure tight, punchy lows and crystal-clear highs for accurate playback VERSATILE INPUTS & SUB-OUT: Bluetooth 5.1, optical, coaxial, dual RCA, plus dedicated subwoofer output for simple 2.1 system expansion and deeper bass REAR KNOBS & WIRELESS REMOTE: Easily adjust volume, bass, treble, and source via rear-panel knobs or full-function remote for quick tuning TILTED WOODEN ENCLOSURE DESIGN: Angled front panel and quality wood cabinet reduce resonance and aim sound directly at your listening position for focused clarity DSP & DRC TUNING: Integrated Digital Signal Processing and Dynamic Range Control optimize tonal balance and prevent clipping at any volume level