KEF Ci4100QL-THX In-Ceiling Speaker

🧾 Overview

The KEF Ci4100QL-THX is a THX Certified Select architectural in-wall speaker designed to deliver cinema-grade clarity and impact without visible floorstanding cabinets. Using KEF’s Uni-Q driver array and a slim Ultra Thin Bezel (UTB) grille, it spreads sound evenly across the room while blending discreetly into your interior.

✅ Key Features

✅ THX Certified Select performance for true home cinema voicing and dynamics

✅ KEF Uni-Q driver array for wide, even dispersion (“sit anywhere” listening)

✅ Ultra Thin Bezel (UTB) grille design for a clean, near-invisible installation

✅ Slim 76 mm mounting depth fits standard wall cavities easily

✅ Powerful 4-driver layout: 3 × 100 mm bass + 100 mm mid/tweeter Uni-Q array

✅ Designed for LCR or surround duty (vertical or horizontal mounting where applicable)

✅ IP64-rated architecture (per KEF spec sheet) for demanding environments and long-term reliability

📦 What’s in the Box

📦 KEF Ci4100QL-THX in-wall speaker (1 pc.)

🧲 Ultra Thin Bezel (UTB) magnetic grille

📐 Cut-out template

🏷️ KEF logo badge (for grille placement)

📖 Installation / user manual

🔄 Compatibility

Compatible with AV receivers, multi-channel power amplifiers, and custom-install amplifiers that can drive a 4 Ω load. Ideal for 2.1 / 5.1 / 7.1 home cinema systems as LCR (where placement allows) or surrounds, and pairs naturally with in-wall or freestanding subwoofers for full-range cinematic impact.

📦✈️ Shipping & Returns

📦 Insured worldwide delivery

🔄 14-day return policy

🛡️ 2-year EU warranty

📝 Reviews

“We really liked its slim size and profile.” — Audioholics

“I bought the kef to test it out and it sounds great even without being in wall.” — Reddit (r/hometheater)

“Sounds nice.” — Alpha Audio

⚠️ Warning

⚠️ Warning: Installing these may cause spontaneous measuring of stud spacing, sudden interest in акустически прозрачные экраны, и необъяснимое желание “раз уж стену режем — давай сразу 7.2.4”. You’ve been warned.