Marshall Kilburn III Bluetooth Portable Speaker, Black and Brass

The Marshall Kilburn III is a portable wireless speaker designed to deliver a wide soundstage through its True Stereophonic 360° audio technology. It produces 50 watts of total RMS power across a frequency range of 45 Hz to 20 kHz. The unit features Dynamic Loudness, a function that automatically adjusts the tonal balance of the audio to maintain consistency at various volume levels. Users can further modify the audio output using the tactile analogue controls for bass and treble located on the top panel.

This speaker offers wireless audio streaming via Bluetooth 5.3 and includes a 3.5mm auxiliary input for connecting to wired devices. Constructed for use in different environments, it has an IP54 rating for dust and water resistance. The internal battery provides up to 50 hours of playtime and recharges in approximately 3 hours. A built-in USB-C port allows the speaker to function as a power bank for charging other devices, and an integrated handle facilitates portability.

• Total output power of 50 watts RMS
• Frequency response of 45 Hz to 20 kHz
• Bluetooth 5.3 and 3.5mm AUX connectivity
• IP54-rated for dust and water resistance
• Provides up to 50 hours of battery life
• Functions as a power bank via USB-C port
• Dimensions are 169 x 273 x 150 mm (H x W x D)
• Weighs 3.6 kg