Behringer SD251‑CL are professional in-ear monitor headphones designed for studio use, live monitoring, and mobile audio applications. Their transparent housing not only provides a modern visual appeal but also showcases the precise internal build – a testament to Behringer’s engineering quality.

At the core lies a high-quality dynamic micro-driver delivering balanced, full-spectrum sound – from deep, rich bass to clear, detailed highs. With a frequency response of 20 Hz to 20 kHz, the SD251‑CL is perfect for mix referencing, vocal monitoring, or critical listening on stage or in the studio.

Noise Isolation and Comfort

The snug in-ear design offers excellent passive noise isolation. It improves focus and listening precision, even in loud environments such as stage setups or public transport. Three pairs of silicone ear tips (sizes S, M, L) ensure a personalized fit for maximum comfort, even during long sessions.

Flexible and Reliable MMCX Connectivity

The detachable cable features a 360° rotatable gold-plated MMCX connector. This provides improved durability, movement freedom, and easy cable replacement. The modular system also allows upgrading to alternative cables – including ones with microphones or balanced signal paths.

Optimized for Versatile Use

Thanks to low impedance and high sensitivity, the SD251‑CL works seamlessly with audio interfaces, mixers, in-ear monitor systems (IEM), smartphones, and laptops. The sound reproduction remains clear and natural across all devices – especially in the midrange, which is crucial for vocals and acoustic instruments.

Mobility and Protection

A compact hard case is included, protecting the headphones and accessories from physical damage and dust. Lightweight and robust, the SD251‑CL is ideal for touring musicians, sound engineers, and content creators on the go.

Why Choose Behringer SD251‑CL?

These headphones offer excellent value, delivering professional sound quality, passive noise isolation, and modular connectivity. Ideal for both stage and studio environments, with three sizes of silicone tips, MMCX compatibility, and a rugged carry case, they’re a reliable solution for any audio professional.