The KEF Ci4100QL-THX is a high-performance, passive in-wall speaker designed for discreet audio integration. Featuring a 4" Uni-Q driver with a 0.8" aluminum dome tweeter and three 4" extended response bass drivers, this rectangular speaker delivers a frequency response of 55Hz - 28kHz. With a slim depth of 3.19 inches and THX certification, it is an ideal choice for creating immersive, high-fidelity sound in custom home theater or multi-room audio installations.
Select speakers based on your room size and primary use case, whether it's critical music listening or home theater. Do not rely solely on wattage numbers, as efficiency and acoustic design matter far more for actual loudness and clarity. Available from $700.
Quality speakers have minimal ongoing costs outside of nominal electricity use for active models. Proper care can result in decades of use, making the initial purchase price the primary expense.
Common Failure Modes
Speakers typically fail due to blown drivers from over-amplification or degrading foam surrounds over many years. Active speakers may also suffer from internal amplifier or wireless connectivity module failures.
Select speakers based on your room size and primary use case, whether it's critical music listening or home theater. Do not rely solely on wattage numbers, as efficiency and acoustic design matter far more for actual loudness and clarity.
High-quality speakers can last for decades if treated well and kept away from extreme conditions. The foam surrounds on the woofers are usually the first parts to deteriorate.
The KEF Ci4100QL-THX In-Wall Speaker (Each) is available at abt, starting at $700.
Quality speakers have minimal ongoing costs outside of nominal electricity use for active models. Proper care can result in decades of use, making the initial purchase price the primary expense.
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