Kala UBASS-RMBL-FS Rumbler Mahogany Acoustic-Electric U•BASS®

The Kala UBASS-RMBL-FS Rumbler is one of Kala’s most acclaimed ukuleles, designed for players who want deep, resonant bass tones in a portable, lightweight instrument. Crafted with a mahogany top, back, and sides, this U•BASS® delivers a warm and balanced tone with impressive projection. Featuring an elegant satin finish, black binding, and a rosewood fingerboard, it offers both visual appeal and exceptional playability. Equipped with Fishman U•BASS® EQ electronics, the Rumbler provides superior amplified sound for stage or studio. Whether you’re a professional bassist or a ukulele enthusiast, the Rumbler Mahogany U•BASS® is a versatile and reliable choice.

Key Features

• Mahogany body and neck – Produces warm, resonant bass tones with natural sustain.
• Satin finish with black binding – Adds a classic, elegant look.
• Fishman U•BASS® EQ electronics – Delivers professional-quality amplified sound.
• Rosewood fingerboard – Smooth playability and comfortable fretting.
• Silver Rumbler by Aquila® strings – Specially designed for powerful, bass-like tones.
• Custom black die-cast tuners – Offer precise and stable tuning.
• Lightweight and portable – Ideal for travel, practice, or live performance.
• Includes a padded gig bag – Protects your instrument on the go.
• Truss rod-equipped neck – Easy adjustments for perfect playability.

Specifications

• Top: Mahogany
• Back & Sides: Mahogany
• Binding: Black
• Neck: Mahogany
• Fingerboard: Rosewood
• Headstock: Standard
• Finish: Satin
• Nut: Graph Tech TUSQ®
• Saddle: Composite
• Tuners: Custom Black Die Cast
• Truss Rod: Yes
• Strings: Silver Rumbler by Aquila®
• Electronics: Fishman U•BASS® EQ
• Strap Button: Black x1

Measurements

• Scale Length: 20.375 inches
• Overall Instrument Length: 29.375 inches
• Body Length: 14.031 inches
• Number of Frets: 16
• Upper Bout Width: 7.75 inches
• Lower Bout Width: 10.25 inches
• Waist Width: 6.625 inches
• Body Depth: 3.25 inches
• Fingerboard Width at Nut: 1.75 inches
• Fingerboard Width at Neck/Body Joint: 2.125 inches

Where do you ship?

We ship across the United Kingdom and selected international destinations. If you're unsure whether we deliver to your country, email us at admin@ukeuniverse.co.uk before ordering.

How long does delivery take?

• UK Orders: Standard delivery takes up to 72 hours.
• International Orders: Delivery times vary but may take longer due to customs clearance.

What is your return policy?

We offer a 14-day no-quibble money-back guarantee. Items must be undamaged, in
their original packaging.

How do I return an item?

Contact us at admin@ukeuniverse.co.uk for return instructions. Customers are responsible for return shipping and handling costs upto £30 (depends on package size) unless the item is faulty.

How long does it take to process a refund?

Refunds are processed within 7 working days after receiving the returned item. If your refund hasn’t been received, check with your bank before contacting us.

How do I place an order?

Simply browse our website, add your chosen items to the cart, and proceed to checkout. Follow the prompts to enter your shipping details and complete the payment.

What payment methods do you accept?

We accept Visa, MasterCard, American Express, PayPal, Klarna, Clearpay and other secure payment methods.

Can I pay in installments?

Yes, we offer Klarna payment options, allowing you to spread the cost of your purchase over time.

Can I modify or cancel my order after placing it?

If you need to modify or cancel your order, please contact us immediately at admin@ukeuniverse.co.uk. Once an order has been processed, we may not be able to make changes.