KEF · Released May 2023 Last verified June 8, 2026

KEF LSX II · Black Review

Name: KEF LSX II · Black
Brand: KEF

Smart/Portable · $1399

Specdex verdict The KEF LSX II · Black earns Specdex's editor's pick — flagship-tier with no significant weak spots, a clear recommendation in its category.

KEF's KEF LSX II speaker.

All KEF LSX II · Black matchups → From $1,399

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KEF LSX II · Black — Smart/Portable · $1399

Specdex verdict

Editor’s Pick

Specdex doesn't run benchmarks in-house. The verdict is an editorial assessment based on manufacturer specs and public reviewer consensus. See methodology.

Compare

KEF LSX II · Black versus its closest rivals

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Editorial · Specdex take

Pros

+Easy multi-room with ecosystem
+App EQ on modern models
+USB-C/AUX input on some

Cons

−Brand ecosystem lock-in
−Subscription features on some
−Bass limits at lower sizes

Who's the KEF LSX II · Black for?

Quick verdicts for the most common buyer profiles, derived from the sub-scores above.

Power users and creators Skip

Compute scores trail current top-tier — look at our step-up alternatives below if performance is the priority.

Budget-conscious buyers Consider

Mid-tier pricing at $1,399 — review whether the score-per-dollar lines up against the cheaper alternatives we recommend.

In the box

What you get when you unbox the KEF LSX II · Black.

Speaker
Power cable
Ethernet cable
Quick-start guide

Standard contents — region/SKU may vary; confirm at retailer.

Sources & benchmarks

Cited, not generated

Specdex does not run benchmarks in-house. We're rolling out cited public benchmark data category by category — PassMark for CPUs and GPUs is wired today; DXOMark, RTINGS, Geekbench, and NotebookCheck will follow.

Sources we use when available: PassMark for CPU/GPU, Geekbench Browser for synthetic, DXOMark for camera scores, RTINGS for TVs, monitors, and headphones. See methodology.