KEF Ci5160RLM-THX vs Ci3160REFM-THX: Which In-Wall Speaker?
By Official KEF US Website | HiFi Speakers, Subwoofers | Published: 2026-10-28
Category: Comparisons
Compare KEF's Ci5160RLM-THX and Ci3160REFM-THX in-wall architectural speakers. We break down the trade-offs in driver configuration, THX certification, and handcrafted reference build to help you choose.
Quick answer
If you want the most dynamic home theater experience with powerful bass from four dedicated drivers, choose the Ci5160RLM-THX. If you prioritize the pinnacle of KEF's handcrafted Reference engineering and are willing to invest significantly more, the Ci3160REFM-THX is the ultimate choice.
Driver configuration: bass output vs reference purity
The Ci5160RLM-THX is engineered for sheer impact. Its four 6.5-inch hybrid aluminum bass drivers work alongside the 12th generation Uni-Q array to deliver a powerful, room-filling sound that's ideal for home theaters. This configuration is designed to move more air, producing deeper and more impactful bass without needing a separate subwoofer in many setups.
In contrast, the Ci3160REFM-THX is a more purist design, focusing on the clarity and precision of the Uni-Q driver. It doesn't list the same hybrid bass driver array, suggesting a different sonic character that prioritizes accuracy over raw output. This speaker is handcrafted by KEF engineers in Maidstone, UK, and meets the standards of The Reference series, which is KEF's flagship line. The trade-off is a higher price point for that handcrafted reference build and potentially less sheer bass output compared to the Ci5160RLM-THX.
THX Certified Ultra: both deliver reference-grade performance
Both speakers proudly carry the THX Certified Ultra designation, meaning they meet the highest performance standards for large home theaters. This certification ensures they can reproduce movie soundtracks at reference volume with minimal distortion, giving you a cinematic experience that's true to the director's intent.
The Ci3160REFM-THX goes a step further by also meeting the standards set by The Reference, KEF's most prestigious speaker line. This means it's not just THX-certified but also aligned with KEF's absolute top-tier acoustic engineering. For audiophiles who value that extra pedigree, this is a meaningful distinction.
Price and value: what you pay for
The Ci5160RLM-THX is priced at $2,078.99 (compare at $3,299.99), making it a more accessible entry point into KEF's high-performance architectural line. It delivers a dynamic, powerful sound that's perfect for home theater enthusiasts who want THX-certified performance without the reference-level price tag.
The Ci3160REFM-THX, at $5,399.99 (compare at $8,999.99), is a significant investment. You're paying for the handcrafted build, the reference-grade engineering, and the exclusivity of owning a speaker that meets The Reference standards. If budget is a primary concern, the Ci5160RLM-THX offers better value for your dollar, especially if you prioritize bass output.
Trade-offs at a glance
- Bass output: The Ci5160RLM-THX has four dedicated bass drivers for more powerful low-end. The Ci3160REFM-THX focuses on Uni-Q clarity, so it may not deliver the same sheer bass impact. If deep bass is your priority, choose the Ci5160RLM-THX.
- Build quality: The Ci3160REFM-THX is handcrafted in the UK to Reference standards, offering a level of fit and finish that the Ci5160RLM-THX, while excellent, does not match. For the ultimate build and prestige, the Ci3160REFM-THX is the clear winner.
- Price: The Ci5160RLM-THX is significantly more affordable, making it a better value for most home theater builders. The Ci3160REFM-THX costs more than double, reflecting its handcrafted reference status. Set your budget first; it will likely decide this comparison.
Key product facts
- Ci5160RLM-THX: The Ci5160RLM-THX features the 12th generation Uni-Q driver array with Metamaterial Absorption Technology (MAT™) and four 6.5” hybrid aluminium bass drivers, and is THX Certified Ultra. This combination delivers a powerful, dynamic audio experience ideal for home theaters where impactful bass and clear dialogue are essential.

Ci5160RLM-THX - Ci3160REFM-THX: The Ci3160REFM-THX is handcrafted by KEF engineers in Maidstone, UK, meets The Reference standards, and is THX Certified Ultra, with the 12th generation Uni-Q driver array with MAT™. This speaker offers the pinnacle of KEF's engineering and build quality, ensuring a level of precision and refinement that audiophiles will appreciate.

Ci3160REFM-THX
Which one fits you?
Best for
- Home theater enthusiasts who want powerful, THX-certified sound with impactful bass at a more accessible price.
- Buyers who value the handcrafted, reference-grade engineering of KEF's flagship line and are willing to pay a premium for it.
Not for
- If you're on a tight budget and need the most bass for your money, the Ci3160REFM-THX is not for you.
- If you prioritize sheer bass output over reference-level build purity, the Ci3160REFM-THX may not be the best fit.

