Kala U-Bass Rumbler

4-String Ukulele Bass

  • Tuning: E, A, D, G
  • Body size: Baritone ukulele
  • Top: Mahogany
  • Back and sides: Mahogany
  • Neck: Mahogany
  • Fretboard: Black walnut
  • Bridge: Black walnut
  • GraphTech TUSQ nut
  • 16 Nickel silver frets
  • Scale: 533 mm
  • Total length 720 mm
  • Black, open, geared machine heads
  • Shadow Acoustic U-Bass pickup
  • Shadow U-Bass NFX Electronics
  • With KALA Silver Rumblers strings by Aquila
  • Total length: 75 cm
  • Width: 26 cm
  • Depth: 9 cm
  • Finish: Natural matte
  • Incl. Deluxe U-Bass bag

Note: Register your product at www.w-distribution.de/Warranty and extend the warranty to 4 years.

Note: Register your purchase at www.w-distribution.de/Warranty for an extended warranty of 4 years.

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Further information

Body Mahogany
Top Mahogany
Frets 16
Neck Mahogany
Pickup Yes

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Our most popular Bass Ukuleles
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4.1 / 5.0
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10 written ratings Read all reviews
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Very Good Sound (but alas the strings...) !

padh, 19.09.2018
I had already tested and borrowed other Ukulele bass but this is my first U-Bass. I was looking for a travel instrument that could even be played distractedly in an armchair just for fun. The on-board chromatic tuner works well enough and this ukulele bass is incredible to play when all I had before were relatively 'giant' and 'heavy' bass guitars.
The Rumbler amplified sound remains very round and warm with good attacks and articulations. In my opinion, this sound is equal to or better than all acoustic bass guitars I may have had in my hands.

But even after 50 hours of intensive playing and testing, the original strings still come out of tune very quickly. Worse, on the model received, there are even some problems of accuracy on the G string from the C (more difficult to compensate than on an FL model, I guess). Two points down for the quality of these strings.
It's a shame, because I really like the out-of-the-box sound and the strings that don't stick, but I'll have to test other strings.
However, trying other strings on this Kala Rumbler may require some fumbling and tinkering. Because unlike the other U-BASS models shown in all explanatory videos I've seen, the Rumbler model has oddly NO access hatch to the inside of the body. Difficult to understand this non-feature and Kala's design choice but luckily not impossible to solve.
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Great uke but lose the strings!

PhilPugh, 18.11.2017
I came across this uke being played by Dave Pegg (Fairport Convention and other bands) at a local gig. I couldn't believe the rich bass sound it produced, talking to him afterwards he said that the 'secret' was to ditch the supplied strings and fit Pyramid strings - he preferred the flat-wound variety.

As a bass player myself I liked the idea of a very portable instrument for small venues that needed only a small amp to get the best out of it - I have a Roland BASS CUBE amp that turns out to be just right for this instrument. I ordered the U-BASS from Thomann and took delivery of it a couple of days later. The supplied strings are truly dreadful - I don't understand why KALA would degrade such a lovely instrument with such poor strings. It is virtually unplayable as the strings don't allow your fingers to slide over them.

I ordered the Pyramid strings (also from Thomann -Pyramid 509.200 Bass Ukulele Set) and after fitting them was impressed by the rich sound and 'attack' which makes it sound like my usuall short-scale bass.

I highly recommend the product - but do change the strings!
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249 €
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