🧾 Overview The PMC ci140sub is a high-performance on-wall subwoofer designed to partner with the ci140 and other ci-series models. Using four 133 mm long-throw Natural Fibre LTx™ drivers in an ATL™ transmission line, it delivers deep, controlled bass extension down to 32 Hz. Compact in depth but powerful in output, the ci140sub integrates seamlessly into high-end home cinemas and music systems. ✅ Key Features ✅ On-wall subwoofer with rear-enclosed cabinet to minimize room leakage ✅ 4 × 133 mm (5.25″) Natural Fibre LTx™ long-throw bass drivers ✅ ATL™ (Advanced Transmission Line) for extended low-frequency response ✅ Laminair™ airflow vent technology reduces turbulence and distortion ✅ Effective ATL™ length of 2.3 m for powerful, detailed bass ✅ Ultra-slim 153 mm cabinet depth for discreet wall mounting ✅ Magnetic grille, optional black or paintable finish ✅ Hand-built in the UK to studio monitor standards 📊 Technical Specifications ▼ Parameter Value Device type On-wall passive subwoofer Frequency response 32 Hz (−3 dB), 29 Hz (−6 dB) Sensitivity 93 dB (2.83 V @ 1 m) Impedance 4 Ω Effective ATL™ length 2.3 m (7.5 ft) Drive units LF: 4 × 133 mm (5.25″) Natural Fibre LTx™ long-throw bass drivers Input connectors 1 pair 4 mm sockets (binding posts) Dimensions (H × W × D) 1400 × 300 × 153 mm Weight ≈ 24 kg each 📦 What’s in the Box 📦 PMC ci140sub On-Wall Subwoofer 🧱 Wall-mount bracket & hardware 🖼️ Magnetic grille (paintable) 📖 User guide 🔄 Compatibility ✔ Designed to match PMC ci140 and other ci-series speakers. ✔ Works with AV receivers, power amplifiers, and processors via subwoofer channels. ✔ Ideal for immersive cinema systems, LCR bass support, or music playback enhancement. 📦✈️ Shipping & Returns 📦 Insured worldwide delivery 🔄 14-day return policy 🛡️ 2-year EU warranty 📝 Reviews 💬 “Be the first to leave a review – share your experience and help others!”