Aquila Thunderbrown – Bass Ukulele Strings – UBass & Ashbory Bass – 5 Strings – 23″ Scale – 166U 1 zoom


Aquila Thunderbrown – Bass Ukulele Strings – UBass & Ashbory Bass – 5 Strings – 23″ Scale – 166U 1
Full Screen

Aquila Thunderbrown – Bass Ukulele Strings – UBass & Ashbory Bass – 5 Strings – 23″ Scale – 166U


  • New Aquila Thunderbrown Bass Ukulele Strings – Code 166U
  • For UBass & Ashbory Bass
  • Suitable for 23 Inch Scales Only
  • Pack Includes Five Bass Ukulele Strings
  • Made in Italy
  • Superior Performance – Stable Intonation – Quicker Tuning

In Stock | FREE UK Priority Shipping | Fast Dispatch & Delivery


Aquila Thunderbrown Strings – 166U

Created from plant-derived bio-elastomers, Aquila’s new Thunderbrown bass ukulele strings have a higher tension than their famous Thundergut, Thunder Red and Thunderblack sets and produce such a wonderfully powerful output, Thunderbrowns can also be installed on instruments with traditional soundboards and played without amplification.

Thunderbrown strings offer several advantages over traditional UBass strings as they do not suffer from the dreaded ‘sausaging effect’. This happens when a string’s gauge is permanently distorted and stretched out of shape when pulled by hand.

Thunderbrown strings provide the perfect slide for your fingers whilst traversing the fretboard and have a string gauge comparable to that of wound strings used in acoustic bass guitars.

With micronised copper blended in varying degrees throughout each string, Aquila have created their most powerful yet perfectly balanced string set allowing for better sound, increased stability and more accurate intonation for your bass uke.

The Aquila Thunderbrown 166U set is for 5 string bass ukuleles of 23″ scale.

Pack Contains 5 Bass Strings – G, D, A, E, B – (5th String is Low B)

1st – G
2nd – D
3rd – A
4th – E
5th – B

Please Note – These strings have been designed specifically for the UBass and Ashbory basses of 23 inch scale and are not to be used on longer scales.

Additional information

Weight 119 g
Dimensions 15 × 15 × 1.6 cm






Range / Series


, ,


Tuning - Last String to First

Tuning - First String to Last



No of Strings

Pack Type

Anchor / End

Coated / Uncoated

Other Stringed Instruments


Dispatch, Delivery & Returns

At Original Artisan, we take great care ensuring the goods you purchase on this site reach you in good condition and as quickly as possible.

Our aim is to provide the best service we possibly can for all our customers which is why we provide FREE priority shipping on all UK Mainland orders, fast dispatch and delivery and 100% satisfaction moneyback guarantees.

Please view our shipping information pages and guarantee & returns pages for further details.

UK Mainland Shipping – FAST & FREE

Smaller Items – Strings & Musical Accessories

  • FREE Royal Mail 1st Class & RM24 shipping for all UK orders
  • Same day dispatch on orders received before 4.30pm Monday to Friday & 11.30pm Saturday
  • Royal Mail aim to deliver most 1st Class & RM24 letters & parcels within 1 – 2 working days
  • Royal Mail Special Delivery Service available at checkout

Larger Items – Amps, Guitars & Ukuleles

  • FREE Express Courier shipping via UPS, DPD & Parcel Force
  • Same day dispatch on orders received before 12pm requiring courier delivery
  • Most couriers aim to deliver the next working day after posting or within 1 to 2 working days for certain services

Please note that at times of year where excessive strain is placed on delivery services such as Christmas, New Year, bank holidays and periods whereby unforeseen weather conditions or restrictions arise due to Coronavirus concerns, delivery times can vary.

Scottish Highlands, UK Islands, Channel Islands, Northern Ireland & Remote Areas

Free Royal Mail 1st Class & RM24 shipping is available for most smaller items, strings & musical accessories
Charges are applicable for larger items, amps, guitars and larger sized ukuleles.
Please view our shipping information pages and guarantee & returns pages for details.

International Shipping

Coronavirus Notice

Unfortunately due to the coronavirus pandemic, international shipping has been temporarily suspended. We hope to be resuming our international shipments as soon as possible but at the moment we are only processing UK orders. Please see our shipping page for exceptions.


All items are sent with adequate postage insurance.

Customer Guarantees & Returns

Original Artisan operates a fair and open returns policy.

If for any reason the buyer is dissatisfied with the product, then the item may be returned within 14 days of receipt for a full refund, provided the product is returned unused and in it’s original packaging and condition.

If you need to return your item for any reason, please contact us either by phone, email or using our contact form and we will be happy to assist and discuss options to help resolve your issue or instigate your return as quickly as possible.

Please see our guarantee and returns page for more details.

Payments & Security

All purchases made through Original Artisan are processed through our secure online payment gateways using the most up-to-date security protocols offered by PayPal and Stripe, two of the most trusted and popular online payment gateways in the world.

Customers can be assured their payment details remain 100% safe at all times and our SSL (Secure Socket Layer Technology) ensures that all sensitive data sent between users and sites, as well as payment and processing systems is safeguarded using complex encryption algorithms to scramble data in transit.

SSL Web Technology used on this site makes it impossible for criminals to read, intercept or modify personal and sensitive information such as names, card information, addresses etc. sent over the internet, guaranteeing your payment data and personal details remain 100% secure throughout the entire payment process.