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Buy the Marshall Kilburn III Portable Bluetooth Speaker online for $97.75, a 360° stereophonic speaker with 50+ hour battery, bass/treble controls, and phone-charging power bank at a huge discount.
Categories : Portable Bluetooth Speakers
SKU : SON-POR-014
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Buy the Marshall Kilburn III Portable Bluetooth Speaker online for just $97.75, down from $379.99 — nearly 75% off. Best for party hosts, patio listeners, and travelers who want 360° True Stereophonic sound, two-day battery, and a built-in charging bank in one statement speaker.
The Kilburn III doubles as a power bank: connect your phone to the speaker's USB output to top up on the go. It charges your device while the speaker keeps playing — perfect for festivals, camping, and long days out.
IP54 resistance shrugs off dust and splashes, while the guitar-amp-inspired brass panel and classic Marshall script make it a showpiece indoors or out.
Pairs with any Bluetooth device, plus wired playback via 3.5mm aux. Ideal for patios, beaches, picnics, house parties, and home listening.
vs. Willen II: Kilburn III is larger and louder with 360° sound and a charging bank; Willen II is more pocketable and fully IP67 submersible. Kilburn III's 50+ hour battery leads its class.
At $97.75 versus $379.99, you save over $280. Stack coupon DEN10 for an extra 10% off; your order crosses $45 for free shipping.
360° True Stereophonic sound with 50+ hours of playtime at just $97.75
Built-in charging bank tops up your phone while the music plays
Save nearly 75% off list price and stack coupon DEN10 for an extra 10% off
Color: Black and Brass
Model: Kilburn III
Sound: 360° True Stereophonic, Dynamic Loudness
Extras: USB charging bank, 3.5mm aux input
Controls: Bass and treble knobs
Sale Price: $97.75
Battery Life: 50+ hours
Product Type: Portable Bluetooth Speaker
Compare-at Price: $379.99
Water/Dust Rating: IP54
Seller: Sonic Den Audio
MPN: Kilburn III
If you compare portable speakers on battery, sound stage, and style, the Kilburn III leads with 50+ hours, 360° stereophonic audio, and phone-charging — now at $97.75 instead of $379.99.
vs. Willen II (submersible, pocketable) and Stanmore III (home-only): Kilburn III is the portable flagship for big sound anywhere.
Save over $280, stack DEN10 for 10% more, free shipping over $45.
Buy it here at Sonic Den Audio for $97.75 with free shipping on orders over $45.
The sale price is $97.75 versus the $379.99 list price — nearly 75% off.
Plug your phone into the speaker's USB output; the Kilburn III charges your device while continuing to play music.
It's IP54 rated — resistant to dust and water splashes, but not submersible like the IP67 Willen II.
Yes — apply coupon code DEN10 at checkout for an additional 10% off the sale price.
The 360 sound fills my whole backyard. Battery lasted through an entire weekend camping trip. Charged my phone off it too, which saved the day.
The brass details on the black are stunning in person. Sound is rich and loud without distortion. The strap makes it easy to carry around.
It's a chunky thing to haul around, no way around that. But the sound quality justifies the weight. IP54 rating gave me peace of mind by the pool.
Sounds amazing and the battery genuinely lasts forever.
