Marshall Kilburn III Portable Bluetooth Speaker
4.3 out of 5 rating
3 Reviews
Turn heads and ears with the Kilburn III Portable Bluetooth Speaker, featuring impeccable audio and a timeless design. This portable speaker makes a statement wherever it's displayed, delivering over 50 hours of portable playtime on a single charge¹. It comes with Marshall Signature True Stereophonic sound, a form of 360 degree audio that ensures every spot is a sweet spot. Its IP54 dust and water-splash resistance rating means it's not bothered by a bit of dirt or a splash of water², making it a durable companion for any adventure. The speaker features tactile controls and is compatible with the Marshall app for a customized experience. It also functions as a charging bank to power up your other devices. Should you run low on battery, a quick 20-minute charge provides 8 hours of playtime¹.
¹Battery life and charge cycles vary with use, settings, and other factors; actual results will vary.
²IP54 rated. Limited dust protection + Protection against water splashes from any direction.
All specs¹Battery life and charge cycles vary with use, settings, and other factors; actual results will vary.
²IP54 rated. Limited dust protection + Protection against water splashes from any direction.
Reviews
4.3
4.3 out of 5 rating
3 reviews
0% of reviewers recommend this product.
Kilburn III
5 out of 5 rating
Rick Z. . 7 months ago
This speaker is ten times as good as I thought it would be! The coolest thing is the APP that lets you have pre determined ed settings to correspond to type of music you are listening to and also allows you to customize all the settings and save them as your favorite.
It's just amazing and I love it. I bought another one for my daughter.
Marshall Originally posted on Marshall
Pretty speaker. Ok sound.
3 out of 5 rating
Corbin G. . 7 months ago
It's an attractive looking unit. Built well and durable. Good battery performance and feature, functionality. The sound is meh - the treble dial does pretty much nothing. Crank it all the way up and you might notice a small difference. Overall, I'm underwhelmed by the sound. It's muddles, but punchy. High end is missing. It would be nice it they built it as a two way speaker perhaps with a silk dome or maybe even titanium tweeter.
Marshall Originally posted on Marshall
Features
- Delivers over 50 hours of portable playtime¹
- Features Marshall Signature True Stereophonic 360 degree sound
- IP54-rated resistance to dust and water splashes²
- Functions as a charging bank for your other devices
- Quick charging provides 8 hours of playtime from a 20-minute charge¹
- Compatible with the Marshall app for customized control
Specs
- Dimensions: 10.74 x 5.9 x 6.65 in.
- Weight: 6.17 lb
SKU#
SKU#
MRSL1007443
What's in the box
- Marshall Kilburn III Portable Bluetooth Speaker
- User manual with legal and safety information
- USB-C charging cable
- Quick start guide
Marshall Kilburn III Portable Bluetooth Speaker Reviews
4.3
4.3 out of 5 rating
3 reviews
0% of reviewers recommend this product.
Kilburn III
5 out of 5 rating
Rick Z. . 7 months ago
This speaker is ten times as good as I thought it would be! The coolest thing is the APP that lets you have pre determined ed settings to correspond to type of music you are listening to and also allows you to customize all the settings and save them as your favorite.
It's just amazing and I love it. I bought another one for my daughter.
Marshall Originally posted on Marshall
Pretty speaker. Ok sound.
3 out of 5 rating
Corbin G. . 7 months ago
It's an attractive looking unit. Built well and durable. Good battery performance and feature, functionality. The sound is meh - the treble dial does pretty much nothing. Crank it all the way up and you might notice a small difference. Overall, I'm underwhelmed by the sound. It's muddles, but punchy. High end is missing. It would be nice it they built it as a two way speaker perhaps with a silk dome or maybe even titanium tweeter.
Marshall Originally posted on Marshall
Great Speaker
5 out of 5 rating
Barbara V. . 7 months ago
I absolutely love my new speaker! It sounds and looks great!
Marshall Originally posted on Marshall
Marshall Kilburn III Portable Bluetooth Speaker FAQs
John . Mar 18, 2026
Can it be doubled as a amp for your guitar (similar to the way a Spark amp works) if this one doesn't does Marshall have any products that do?
Answer from Verizon Customer Support21 hours
No, the Marshall Kilburn III Portable Bluetooth Speaker cannot be directly used as a guitar amp. Please visit Marshall's website to explore other products. http://spr.ly/6424B6Xm1u -Erica