Marshall Kilburn II Bluetooth Speaker Review

Marshall Kilburn II speaker

The Marshall brand is known for its guitar amps, and the exterior of the Kilburn II speaker is most reminiscent of a guitar amp. Despite the brand name, this Bluetooth speaker was manufactured by Zound Industries of Sweden.

Rock forever!

Marshall white

The 2.5kg speaker has a black or gray faux leather casing, recessed corner traps, a silver mesh speaker grille (it was gold in previous Kilburn models, it was a good idea to replace it with silver) and a guitar-style strap lends a rocky look to the speaker. The white Marshall logo is quite striking, perhaps a little overly ostentatious.

Kilburn II buttons

At the top of the speaker, instead of the paired and source switches, there are 3 buttons to control the volume, treble and bass, as well as the Bluetooth connection point and the LED battery charge indicator.



Marshall K. back panel

The 3.5mm AUX port is located on the back of the speaker. There is no network connection at all, as well as no voice assistant or Wi-Fi connection. It has a Bluetooth 5.0 connection, thanks to the multi-host function, you can easily connect and switch 2 Bluetooth devices.

IPX 2 certificate

The Marshall speaker is slightly waterproof, so you don’t have to worry about splashing rain or liquid damaging it. However, do not drop into the pool.

Extra long life

Marshall grey

The battery life of the Kilburn is 20 hours. It is not possible to charge the device with a USB cable, but with a standard cable, it takes 2.5 hours to fully charge, but if someone is in a hurry, a charge of about 15 minutes can lead to 3 hours of operation.

The amplifiers

The speaker is equipped with 2 “D” class amplifiers, the tweeter is powered by an 8-watt amplifier and the subwoofer by a 20-watt amplifier. The frequency range is 52 Hz-20kHz.

 Listening Test

Kilburn burgundy

We recommend the Kilburn Bluetooth Speaker primarily for computers and mobile phones due to its size and portability. We tested the speaker in a room converted into a roughly 20-square-foot audio studio. The walls of the home studio were treated with sound-absorbing, printed elements and diffuser front panels. The amateur musician owner is a true rock fan, so he ordered the printed-absorbing panels with prints of images depicting a guitar and posters of rock bands.

Since the Marshall speaker has been given a rock design and the owner also likes rock music, we started with this style. We used the Spotify music streaming service available on our mobile phone. We were the first to listen to the song Numb by Linkin Park, an alternative hard rock genre. We experienced strong and dynamic sounds, the stereo experience was perfect, but the 360-degree sound proved to be noisy. The basses were intense, but the lowest ranges were already proving weak. The trebles were sharp and clean.

We continued with Depeche Mode, we enjoyed tight, definite bass while listening to Enjoy the Silence, although the lowest frequencies were faint this time as well. Even at high volume, the clarity of the sounds remained, but the sound was less airy and spacious than we expected. There were also shortcomings with the richness of detail, which was most evident in the instrumental parts.


The Kilburn II Bluetooth sound system immediately caught on with its rock-style look. The long battery life is also remarkable, as are the 2 “D” class amplifiers. Through the amplifiers, the sound fills the room, we can enjoy a powerful, clear sound, with sharp, beautiful trebles, tight bass. Unfortunately, the lowest ranges are weak. The airy and spacious sound is also lacking, as is the detail that leaves something to be desired. The stereo effect is excellent, but the 360-degree sound is already noisy. Since this device is a stereo speaker primarily, this isn’t necessarily a big deal either, although there are Bluetooth speakers that can bring out great 360-degree sound. Such as the Ultimate Ears Megaboom 3 speaker, and it is even more affordable. Unfortunately, Marshall does not have a Wi-Fi connection either, its relatively high weight and price can also be considered a disadvantage. However, the rock design compensates for these negatives, although not everyone likes this style, for them, it is worth choosing speakers with a more sophisticated look.