When evaluating or choosing a 150 W subwoofer (active or powered) by Kenwood or otherwise: RMS vs Peak Power RMS is what matters for sustained performance. Some units say 150 W peak, but RMS might be lower. Always check actual RMS rating. Example: KSC‑SW11 often is described with 75 W RMS but 150 W peak. Keep expectations accordingly. webge.com.tr +1 Size & Fit Depth, height, and whether it fits under seat or in trunk matter. Measure your intended location. The slim models (SW11, PSW8) are made to fit in tighter spaces. origin.kenwood.com +2 webge.com.tr +2 Frequency Response & Low‑Pass Filter How low the unit can go (e.g. 35 Hz) matters for “deep bass” feel. For car usage, anything around 35–40 Hz is good. Check if there is a built‑in low‑pass crossover so you can adjust to match your speakers and reduce distortion. Many of these Ke ...