Marshall Kilburn – Portable Active Stereo Speaker

Introduction

The Marshall Kilburn – Portable Active Stereo Speaker is a standout in the world of Bluetooth speakers, blending iconic Marshall aesthetics with robust, portable sound. Designed for music lovers who crave both style and substance, the Kilburn delivers a well-balanced, articulate audio experience with clear mids, crisp highs, and impressive bass—thanks to its two 0.75" dome tweeters and a single 4" woofer powered by a 3-channel Class D amplifier. The classic Marshall design—complete with a vintage front fret, gold metal details, and the iconic script logo—ensures this speaker is as visually striking as it is sonically satisfying.

Portability is a key selling point: Weighing just 3 kg (6.6 lbs), the Marshall Kilburn is compact yet powerful, making it perfect for outdoor gatherings, travel, or simply enjoying music at home without the clutter of wires. It's built-in rechargeable battery offers up to 20 hours of playtime, so your music never has to stop. Connectivity is seamless with Bluetooth 4.0 (wireless range up to 10 meters/33 feet) and a 3.5mm aux input for wired options. The speaker supports multi-device pairing and automatically reconnects to the last used device for hassle-free use.

The Marshall Kilburn is ideal for audiophiles, students, travelers, and anyone who values both design and performance. It’s suitable for indoor and outdoor use, though it is not waterproof—keep it clear of rain and splashes. With an estimated price range of $200–$300, the Kilburn offers a premium experience at a competitive price point compared to other high-end portable speakers. It’s widely available from major electronics retailers and the official Marshall store, ensuring easy access for interested buyers

BOX CONTENTS

Marshall Kilburn – Portable Active Stereo Speaker-product-a

USER MANUAL AND WARRANTY INFORMATION
DOUBLE-ENDED COIL CORD WITH 3.5MM STEREO PLUGS TO CONNECT TO YOUR MUSIC PLAYER
POWER CORD
MARSHALL KILBURN ACTIVE STEREO LOUDSPEAKER

KILBURN

GENERAL DESCRIPTION

INPUT FOR 3.5MM STEREO PLUG
BATTERY LED INDICATOR
SOURCE LED INDICATORS
VOLUME KNOB
BASS KNOB
TREBLE KNOB
PAIR BUTTON
SOURCE/WAKE BUTTON
POWER SWITCH
BACK PLATE
BASS PORT
DETACHABLE CARRY STRAP
BATTERY HATCH
POWER SOCKET
POWER CORD

KILBURN

USING THE KILBURN WITH YOUR DEVICES

THERE ARE TWO WAYS TO CONNECT YOUR PHONE, TABLET, OR LAPTOP TO YOUR LOUDSPEAKER, WHETHER USING A PHYSICAL CORD OR VIA WIRELESS BLUETOOTH®. BELOW YOU WILL FIND MORE DETAILS ABOUT THE CONNECTION SOURCES, IN TWO CATEGORIES:

WIRELESS CONNECTION VIA BLUETOOTH
CONNECTION VIA THE 3.5MM STEREO PLUG

Marshall Kilburn – Portable Active Stereo Speaker-use

CONNECTING VIA BLUETOOTH

WITH THE HELP OF BLUETOOTH TECHNOLOGY, BLUETOOTH-COMPATIBLE DEVICES CAN EASILY BE CONNECTED TO EACH OTHER OVER A SHORT WIRELESS CONNECTION. USE YOUR BLUETOOTH-ENABLED SMARTPHONE, TABLET,, OR COMPUTER TO STREAM MUSIC DIRECTLY TO YOUR KILBURN. FOLLOW THESE STEPS TO CONNECT YOUR KILBURN WIRELESSLY TO YOUR BLUETOOTH DEVICE.

TURN THE KILBURN ACTIVE LOUDSPEAKER ON.
SELECT BLUETOOTH AS SOURCE BY PUSHING THE SOURCE/WAKE BUTTON UNTIL THE BLUETOOTH LED IS LIT.
ACTIVATE THE BLUETOOTH FUNCTIONALITY ON YOUR DEVICE (SMARTPHONE, TABLET, COMPUTER).
PUSH THE PAIR BUTTON. THE LED ON THE KILBURN WILL START TO FLASH RAPIDLY IN RED.
ON YOUR DEVICE, SELECT THE KILBURN SPEAKER FROM YOUR LIST. THE LED ON THE SPEAKER WILL TURN TO A STEADY RED.
YOU ARE NOW READY TO PLAY YOUR MUSIC WIRELESSLY VIA THE LOUDSPEAKER.

CONNECTING VIA BLUETOOTH

Marshall Kilburn – Portable Active Stereo Speaker-use-a

LOCATING YOUR DEVICES VIA BLUETOOTH

SELECT BLUETOOTH AS THE INPUT SOURCE BY PUSHING THE SOURCE/WAKE BUTTON. BLUETOOTH IS NOW ACTIVATED, WITH A FLASHING RED LED IF NO DEVICE IS CONNECTED, AND A SOLID RED LED IF A DEVICE IS CONNECTED.
THE LOUDSPEAKER WILL NOW AUTOMATICALLY SEARCH FOR PAIRED DEVICES FOR THREE MINUTES, AND THE LED WILL RAPIDLY FLASH RED DURING THE SEARCH. THE KILBURN WILL LOCATE DEVICES WITHIN RANGE THAT HAVE
PREVIOUSLY BEEN CONNECTED AND WILL CONNECT THEM AUTOMATICALLY.
IF NO DEVICES ARE LOCATED WITHIN THREE MINUTES, THE LOUDSPEAKER WILL REVERT TO STANDBY STATUS (THERE IS MORE INFORMATION ON THE STANDBY MODES ON PAGE 022).
IF THE PAIR BUTTON IS PUSHED WHILE BLUETOOTH IS SELECTED AS
THE AUDIO SOURCE, THE LOUDSPEAKER,, WILL PERFORM A NEW SEARCH FOR THREE MINUTES AFTERWARDS, DURING WHICH TIME, THE LED WILL RAPIDLY FLASH RED.

SELECT BLUETOOTH AS THE INPUT SOURCE BY PUSHING THE SOURCE/WAKE BUTTON. BLUETOOTH IS NOW ACTIVATED, WITH A FLASHING RED LED IF NO DEVICE IS CONNECTED, AND A SOLID RED LED IF A DEVICE IS CONNECTED. THE LOUDSPEAKER WILL NOW AUTOMATICALLY SEARCH FOR PAIRED DEVICES FOR THREE MINUTES, AND THE LED WILL RAPIDLY FLASH RED DURING THE SEARCH. THE KILBURN WILL LOCATE DEVICES WITHIN RANGE THAT HAVE PREVIOUSLY BEEN CONNECTED AND WILL CONNECT THEM AUTOMATICALLY. IF NO DEVICES ARE LOCATED WITHIN THREE MINUTES, THE LOUDSPEAKER WILL REVERT TO STANDBY STATUS (THERE IS MORE INFORMATION ON THE STANDBY MODES ON PAGE 022). IF THE PAIR BUTTON IS PUSHED WHILE BLUETOOTH IS SELECTED AS THE AUDIO SOURCE, THE LOUDSPEAKER WILL PERFORM A NEW SEARCH FOR THREE MINUTES AFTERWARDS, DURING WHICH TIME, THE LED WILL RAPIDLY FLASH RED.

BLUETOOTH AUTO CONNECTION

IF A DEVICE IS MOVED OUTSIDE THE RANGE OF THE KILBURN ACTIVE LOUDSPEAKER (APPROXIMATELY 10 METRES WITHOUT OBSTACLES), THAT DEVICE IS THEN DISCONNECTED. THE DEVICE IS AUTOMATICALLY CONNECTED AGAIN WHEN IT IS MOVED BACK WITHIN RANGE. THE KILBURN STORES UP TO SIX DEVICES AND ALWAYS STARTS SEARCHING FOR THE LAST DEVICE THAT HAS BEEN CONNECTED. IF THE KILBURN HAS BEEN CONNECTED TO DEVICES A–B–C–D–E–F IN THAT ORDER, DEVICE F IS GIVEN FIRST PRIORITY, WHILE DEVICE A IS GIVEN LAST PRIORITY. EVERY TIME THE KILBURN STARTS UP, IT WILL PERFORM AN AUTO CONNECTION OF DEVICES WITHIN ITS RANGE.

Marshall Kilburn – Portable Active Stereo Speaker-use-c

CONNECTING SOURCES BY CABLE

THERE IS ANOTHER WAY TO CONNECT TO YOUR KILBURN – THE OLD FASHIONED WAY, USING A CORD AND THE 3.5MM INPUT.

Marshall Kilburn – Portable Active Stereo Speaker-use-d

INPUT - 3.5MM STEREO PLUG
USE THE DOUBLE-ENDED COIL CORD WITH 3.5MM PLUGS TO CONNECT TO AUDIO SOURCES THAT HAVE AUDIO OUTPUT TO SUCH AS A MOBILE TELEPHONE, IPHONE/IPAD/IPOD, MP3 PLAYER, OR AIRPORT EXPRESS.

Marshall Kilburn – Portable Active Stereo Speaker-use-e

TECHNICAL INFORMATION

SOUND SPECIFICATION

ACTIVE STEREO LOUDSPEAKER WITH BASS REFLEX SYSTEM
TONE CONTROLS:
- BASS: 180HZ, +6DB TO -12DB
- TREBLE: 3KHZ, +6DB TO -12DB
CLASS D AMPLIFIER: 2X5W+1X15W
WOOFER: 1X 4”
DOME TWEETER: 2X 3/4”, FERROFLUID COOLED
MAX SPL: 100DB SPL @ 1M (GROUND PLANE 300HZ, 1%THD)
FREQUENCY RANGE: 62-20,000Hz
CROSSOVER FREQUENCY: 4200HZ

CONNECTIVITY

BLUETOOTH: STANDARD V4.0 + EDR
INPUT - 3.5MM: 1X

TECHNICAL INFORMATION

MAINS INPUT VOLTAGE: 100-240VAC/70W
ABSOLUTE MIN/MAX: 90-264VAC
MAINS FREQUENCY: 50-60HZ
MAX PEAK POWER CONSUMPTION: 70W
TWO STANDBY MODES: POWERSAVER MODE (00.40W AND STANDARD MODE (33.5W
MAX POWER OUTPUT: 30W RMS
BATTERY TYPE: 4X 3,7V LI-IO BATTERIES, 2200MAH
BATTERY PLAYING TIME: UP TO 20H (50% VOLUME)
WEIGHT: 3.00KG
SIZE: 242 X 140 X 140MM

Pros & Cons

Advantages

Iconic Design: The vintage Marshall look, complete with analog knobs and a leather strap, sets it apart from generic Bluetooth speakers.
Rich, Balanced Sound: Delivers clear mids, extended highs, and deep bass via a bass reflex enclosure—great for a variety of music genres.
Long Battery Life: Up to 20 hours of playback on a single charge ensures all-day entertainment.
Portable & Durable: Compact size, sturdy build, and a carrying strap make it easy to transport anywhere.
Easy Connectivity: Bluetooth and aux input provide flexibility for different devices.
Multi-Device Pairing: Remembers up to six devices and reconnects automatically for convenience.

Limitations

Not Waterproof: Lacks water resistance, so it’s not ideal for poolside or beach use.
Heavier Than Some Competitors: At 3 kg, it’s lighter than a guitar amp but heavier than many ultra-portable Bluetooth speakers.
Bluetooth 4.0: Uses an older Bluetooth version, which may affect range and connectivity compared to newer models with Bluetooth 5.0.
No App Support: Lacks companion app features like EQ customization or firmware updates found in newer Marshall models.
Price Point: While competitive, it’s more expensive than entry-level portable speakers.

Compared to alternatives like the JBL Charge or Ultimate Ears Boom, the Marshall Kilburn – Portable Active Stereo Speaker stands out for its design and sound quality, though it may lack some modern features like waterproofing or app integration. For those prioritizing style and audio fidelity, it offers excellent value for money.

Customer Reviews

Customers consistently praise the Marshall Kilburn – Portable Active Stereo Speaker for its powerful, well-balanced sound and iconic design. Many reviewers highlight the speaker’s ability to fill a room with rich audio and its impressive battery life, making it a favorite for parties and outdoor events. The analog control knobs for bass, treble, and volume are frequently mentioned as a user-friendly feature that sets it apart from touch-controlled competitors.

Common complaints include the lack of waterproofing and the speaker’s weight, which some find less convenient for true portability. A few users note that the Bluetooth range could be better with a newer version, and the absence of a dedicated app is occasionally mentioned as a downside for tech-savvy buyers. Despite these points, the Kilburn maintains strong ratings—typically 4 to 4.5 stars out of 5—with many users recommending it for its unique blend of style and sound quality.

Testimonials often describe the Marshall Kilburn as “the best-looking speaker on the market” and “surprisingly loud for its size.” Frequent purchase recommendations emphasize it as a great choice for music lovers who value both aesthetics and audio performance. If you’re seeking a portable Bluetooth speaker with character and clarity, the Marshall Kilburn is a top contender.

Troubleshooting & Support

Marshall Kilburn – Portable Active Stereo Speaker-troubleshoot

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