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Marshall Kilburn III 50-Hour Battery IP54 Bluetooth 5.3 Portable Speaker

Marshall Kilburn III 50-Hour Battery IP54 Bluetooth 5.3 Portable Speaker

The Marshall Kilburn III provides over 50 hours of wireless playtime and a robust IP54 dust and water resistance rating for versatile outdoor use. Its multi-directional 360° soundstage and Bluetooth 5.3 connectivity ensure high-fidelity audio performance in any environment.


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Description

The Marshall Kilburn III represents a significant evolution in portable audio, blending the brand's iconic rock-and-roll aesthetic with modern engineering. This third-generation speaker is built for endurance, offering an industry-leading 50 hours of battery life on a single charge. Its active stereo system utilizes a bass-reflex design to deliver deep, resonant lows and crisp highs, ensuring a balanced acoustic profile whether you are indoors or navigating the elements.


This product is for:
- Long-distance travelers who require a speaker that lasts for days without needing a power outlet.
- Outdoor enthusiasts looking for a durable, IP54-rated audio solution that resists dust and splashes.
- Home users who appreciate vintage design combined with modern multi-device Bluetooth connectivity.
- Music lovers seeking a wide, 360-degree soundstage that fills a room or campsite evenly.
- Tech-savvy listeners who want future-proof features like Auracast and Marshall App integration.

Detailed specifications:
- Power Output: 1 x 30W Class D woofer, 2 x 10W Class D full-range drivers.
- Frequency Response: 45 Hz – 20,000 Hz with a maximum SPL of 91 dB.
- Connectivity: Bluetooth 5.3 (10m range) with Auracast support and 3.5mm AUX input.
- Battery Performance: 50+ hours playtime; 3-hour full charge via USB-C; 20-minute quick charge for 8 hours.
- Durability: IP54 dust and water resistance rating.
- Physical Specs: 27.3 x 15 x 16.9 cm; 2.8 kg weight.

Operating the Kilburn III is a tactile experience, featuring top-mounted analog knobs for precise control over bass, treble, and volume. The addition of a multi-directional control knob for playback and an 'M' button for customizable functions streamlines the user interface. The sound signature is characterized by its True Stereophonic technology, which creates a spatial audio effect that eliminates the sweet spot limitation of traditional portable speakers, delivering immersive sound to every corner of the room.

Compared to its predecessor, the Kilburn II, the Kilburn III offers significantly extended battery life and upgraded Bluetooth 5.3 for more stable connections and lower latency. While it maintains the classic Tolex-covered cabinet, the internal driver configuration has been optimized for a wider frequency response and better clarity at high volumes. It stands as a more powerful, bass-heavy alternative to the Marshall Emberton series, designed for users who prioritize raw output and physical controls over ultra-compact portability.

Q&A:
- How long does the battery last on the Marshall Kilburn III? It provides over 50 hours of playtime at 50% volume on a single charge.
- Is the Marshall Kilburn III waterproof? It has an IP54 rating, meaning it is protected against dust ingress and water splashes from any direction.
- How fast does the Kilburn III charge? A full charge takes approximately 3 hours using a 30W USB-C charger, while a 20-minute quick charge provides 8 hours of playback.
- Can I connect multiple devices to the Kilburn III? Yes, it supports multi-device connectivity and is compatible with the Marshall Bluetooth App for advanced settings.
- What are the physical dimensions of the speaker? The unit measures 27.3 x 15 x 16.9 cm and weighs 2.8 kg, making it portable yet substantial for high-quality audio.
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