Marshall Kilburn III Portable Bluetooth Speaker (Black & Brass)

Marshall Kilburn III Portable Bluetooth Speaker (Black & Brass) brings the brand’s rock ’n’ roll heritage to a take-anywhere design with 360° True Stereophonic sound. Tuned for clear mids, extended highs, and deep bass, it delivers room-filling performance that defies its size. With an IP54 dust- and splash-resistant build, a guitar-strap inspired carry handle, and up to 50 hours of battery life, Kilburn III is engineered for life on the road. Dial in your sound with tactile top-panel knobs, connect wirelessly over Bluetooth 5.3 (multipoint) or via the 3.5 mm aux input, and even top up your phone from the speaker’s USB-C port.

Key Features:

• 360° True Stereophonic — immersive multi-directional Marshall sound wherever you stand.
• Up to 50 W total output — 1 × 4" woofer + 2 × 2" full-range drivers powered by Class-D amps.
• All-day power — up to 50 hours of portable playback; LED battery indicator on top panel.
• Road-ready design — IP54 dust/splash resistance and rugged cabinet with metal grille.
• Dynamic Loudness — maintains balanced, punchy sound at any volume.
• Bluetooth 5.3 (multipoint) — share control between two devices; supports SBC, AAC, LC3.
• Auracast™ broadcast — send audio without pairing to compatible devices.
• Analog tone controls — tactile bass & treble knobs plus volume on the top panel.
• Wired option — 3.5 mm aux input for turntables, laptops, and legacy players.
• USB-C power I/O — charge the speaker and top up a mobile device from the same port.

Features:

Iconic Marshall Sound, Anywhere

Kilburn III delivers a powerful signature tuned for rich, detailed audio. True Stereophonic dispersion projects sound in every direction so everyone gets a prime listening spot.

Portable Power with Guitar-Strap Handle

Purpose-built for travel, the compact cabinet and removable strap make it easy to grab and go—while the 50-hour battery keeps the set going long after the encore.

Tuned for Every Volume

Dynamic Loudness automatically optimizes tonal balance from late-night low levels to outdoor party volumes. Fine-tune with tactile bass and treble knobs.

Wireless or Wired—Your Call

Stream over Bluetooth 5.3 with multipoint to swap DJs seamlessly, broadcast with Auracast™, or plug in via the 3.5 mm aux input.

Built for the Road

Rated IP54 for dust and water resistance, with a robust enclosure and metal grille that stands up to daily carry and outdoor sessions.

Included In The Box:

• Marshall Kilburn III Portable Bluetooth Speaker (Black & Brass)
• USB-C Charging Cable
• Limited 1-Year Manufacturer Warranty

Technical Specifications:

Featured Callouts

• 50-Hour Battery: More than two days of playback on a single charge.
• 360° Marshall Sound: True Stereophonic audio fills every corner.
• Road-Ready IP54: Dust and splash protection for outdoor sessions.
• Multipoint + Aux: Seamlessly switch devices or plug in via 3.5 mm.
• USB-C Power Share: Keep your phone topped up from the speaker.