• Skip to primary navigation
  • Skip to main content
  • Skip to footer
0
search
  • Violin
        • Explore Electric Violins

        • Violins Overview
        • CR Violin
        • NXTa Violin
        • WAV Violin
        • Explore Accessories

        • Strings
        • Bows
        • Adjustable Chin Rest
        • Balanced Shoulder Rest
        • NS Shoulder Rest
        • Violin Stand
        • Flight Cases
        • Quick Links

        • Shop Violins
        • Demos & Deals
        • NS Violin Artists
        • Compare Violins
        • Owner Manuals
        • Find a Dealer
        • Violin FAQs
  • Viola
        • Explore Explore Violin

        • Viola Overview
        • CR Viola
        • NXTa Viola
        • WAV Viola
        • Explore Accessories

        • Strings
        • Bows
        • Adjustable Chin Rest
        • Balanced Shoulder Rest
        • NS Shoulder Rest
        • Viola Stand
        • Flight Cases
        • Quick Links

        • Shop Violas
        • Demos & Deals
        • NS Viola Artists
        • Compare Violas
        • Owner Manuals
        • Find a Dealer
        • Viola FAQs
  • Cello
        • Explore Electric Cello

        • Cello Overview
        • CR Cello
        • NXTa Cello
        • WAV Cello
        • Explore Accessories

        • Strings
        • Bows
        • Cello End Pin Stand
        • NXT Tripod Stands
        • CR Tripod Stand
        • Boomerang Strap System
        • Frame Strap System
        • Thumbstops
        • Flight Cases
        • Quick Links

        • Shop Cellos
        • Demos & Deals
        • NS Cello Artists
        • Compare Cellos
        • Owner Manuals
        • Find a Dealer
        • Cello FAQs
  • OMNI Bass
        • Explore OMNI Basses

        • OMNI Bass Overview
        • CR OMNI Bass
        • NXTa OMNI Bass
        • WAV OMNI Bass
        • Explore Accessories

        • Strings
        • Bows
        • Boomerang Strap System
        • Frame Strap System
        • NXT Tripod Stands
        • Bass End Pin Stand
        • Bass End Pin Stand Conversion Kit
        • CR Tripod Stand
        • Thumbstops
        • Flight Cases
        • Quick Links

        • Shop OMNI Basses
        • Demos & Deals
        • NS Omni Bass Artists
        • Compare OMNI Basses
        • Owner Manuals
        • Find a Dealer
        • OMNI Bass FAQs
  • Upright Bass
        • Explore Upright Basses

        • Upright Bass Overview
        • EU Upright Bass
        • CR-M / CR Upright Bass
        • CR-T Upright Bass
        • NXTa Upright Bass
        • WAV Upright Bass
        • Explore Accessories

        • Strings
        • Bows
        • Boomerang Strap System
        • Frame Strap System
        • Bass End Pin Stand
        • Bass End Pin Stand Conversion Kit
        • CR Tripod Stand
        • NXT Tripod Stands
        • Thumbstop
        • Flight Cases
        • Quick Links

        • Shop Upright Basses
        • Demos & Deals
        • NS Upright Bass Artists
        • Compare EUBs
        • Owner Manuals
        • Find a Dealer
        • Upright Bass FAQ
  • Bass Guitar
        • Explore RADIUS Bass Guitars

        • RADIUS Bass Guitar Overview
        • CR RADIUS Bass Guitar
        • NXTa RADIUS Bass Guitar
        • WAV RADIUS Bass Guitar
        • Quick Links

        • Shop Bass Guitars
        • Demos & Deals
        • NS RADIUS Bass Guitar Artists
        • Compare RADIUS Bass Guitars
        • Owner Manuals
        • Find a Dealer
  • FIN Guitar
  • Artists
        • Explore Artists

        • Violin
        • Viola
        • Cello
        • OMNI Bass
        • Upright Bass
        • RADIUS Bass Guitar
        • All Artists
  • Inside NS
        • Exlore NS

        • News
        • Interviews
        • History
  • Shop
        • Buy Instruments

        • All Instruments
        • Violin
        • Viola
        • Cello
        • OMNI Bass
        • Upright Bass
        • Bass Guitar
        • Buy Accessories

        • Support Systems
        • Bows
        • Cases and Gig Bags
        • Merch
        • Deals & Demos

        • B-Stock
        • Demo Instruments
        • Custom Finishes
        • Collectables
  • Support
        • Explore Support

        • Register your NS Instrument
        • Parts and Technical Support
        • Owner Manuals
        • NS Catalogs
        • FAQs
  • 0

The NXTa Electric Upright Bass

Find a dealer
Buy now

Overview

NXTa Upright, whose electronics are fully based around the Polar™ Pickup System, share the classic body design, ergonomics and performance support options of the CR and EU Series. Available in 4 and 5 string configurations, these instruments are produced in the Czech Republic by the same craftsmen who build NS Design’s most advanced instruments. 

Arco and Pizzicato techniques have almost unlimited expressive potential, thanks to the Polar Pickup System. A convenient switch allows selection of the traditional arco mode for percussive attack and dynamic bowed response, or pizzicato mode for a smooth, sustained tone.

Note: The original NXT series instruments, with passive electronics, have been discontinued. You can read about the NXT upright bass here.

Features & Highlights

DUAL MODE OUTPUT – The new dual mode signal output electronics of the NXTa take the convenience, versatility and performance capability of the NXT to another level.

ACTIVE MODE – Using the supplied charger, the NXTa connects into any AC outlet for 60 seconds, powering the capacitor-powered active circuit for 16 hours from the time of the charge. The instrument can then be plugged straight into any low or high impedance device, no direct box necessary. Since there is no signal loss over the full frequency spectrum of the instrument, the fundamentals of every note remain clear and strong, even with extra-long cables.

PASSIVE MODE – The NXTa can be played in this mode when using a direct box or an amplifier with high impedance input. (This mode provides performance capabilities identical to the original NXT.)

ECO-FRIENDLY OPERATION – NXTa instruments are battery-free, eliminating the hassle and cost of batteries while helping protect our environment.

SOLID MAPLE BODY AND NECK – together with the graduated fingerboard, deliver a rich, full tone that rings true for every note. Asymmetrical fingerboard relief facilitates an even ‘growl’ from the higher strings and a clear, powerful lower register. The adjustable bridge and truss rod allow for low, fast action, or for higher string settings that encourage the traditional acoustic player to ‘dig in’ with gusto.

NS ELECTRIC STRINGS and most traditional acoustic strings fit all NS Double Basses, allowing the player to select from a wide range, each with a unique sound and feel. In combination with the easy adjustment of basic set-up parameters, the NXTa Series Bass is adaptable to many different styles of music.

GIG BAG AND FLIGHT CASE – The NXTa double bass includes a padded gig bag that has a pouch for tripod stand, a bow compartment and room for the charger and accessories. The loaded gig bag will fit in the overhead compartment of most commercial aircraft.  An optional hard-shell flight case is available for the NXTa double bass.

Specifications

LENGTH: 132 cm (52″)

WIDTH: 15 cm (6″)

THICKNESS: 10 cm (4″)

WEIGHT: 4.8 kg (10.5 lbs.)

SCALE LENGTH: 106 cm (41.73″)

STRINGS: 4 or 5 (Low B or high C). Equipped with NS Contemporary Bass Strings by D’Addario™. Compatible with most standard upright bass strings.

BODY/NECK: Solid, straight grain maple, with maple face (Satin Black model) or flame maple face (Sunburst model) on body.

FINGERBOARD: Hand-graduated. Intonation referenced with cascading dot markers.

TRUSS ROD: Single Action, accessible at nut.

TUNING HARDWARE: Fully encased worm gear tuners, black finish.

BRIDGE PICKUP: The Polar directional piezo pickup system responds selectively to either vertical vibration (for the sustained plucked sound, like an electric bass guitar), or lateral vibration (for dynamic bowing, and a percussive plucked sound).

ELECTRONICS & CONTROLS: Rotary volume control, with push-pull selection between Active and Self-Powered output mode; Tone control (treble roll off); Arco/Pizzicato toggle switch.

Performance Support Systems

NXT TRIPOD STAND: Standard with the NXTa, black painted steel, fully adjustable, self-standing tripod design. Folds for easy storage and fits into the NXT gig bag. Weight is 2.7 kg (6 lbs.)

CR TRIPOD STAND: Optional fully adjustable steel tripod stand. Weight is 3.6kg (8 lbs.).

BASS END PIN STAND: The Bass End Pin Stand offers full freedom of movement. Height, tilt and “right bout” angle are fully adjustable providing a more conventional feel. Weight 2.3 kg (5 lbs).

BASS END PIN STAND CONVERSION KIT: To hold the instrument upright for on-stand performance or when not in use, the Bass End Pin Stand can be attached to the CR Tripod Stand  (not compatible with the NXT Tripod Stand) using the optional End Pin Stand Conversion Kit.

BOOMERANG STRAP SYSTEM: This optional support system has a pivoting friction hub that holds the instrument firmly in place close to the body.  Attached with a guitar style strap to its two support arms, the system allows the instrument to be moved into virtually any position in relation to the hands and body as it is played. Weight is .45 kg (1 lbs.).

FRAME STRAP SYSTEM: This optional accessory is a lightweight frame structure that allows full mobility to perform in standing or upright position, holding the instrument out from the body similar to the reference in traditional positioning. The system is supported by a single guitar style strap extending over the left shoulder.  Weight is 0.68kg (1.5 lbs.).

Owner’s Manual

NXTa Upright Bass Owner’s ManualDownload

Footer

Join the mailing list

  • This field is for validation purposes and should be left unchanged.

Products

  • Electric Violin
  • Electric Viola
  • Electric Cello
  • Electric Omni Bass
  • Electric Upright Bass
  • RADIUS Electric Bass Guitar
  • Accessories

Inside NS

  • News
  • Artists
  • NS Connect LIVE
  • Interviews
  • History

Customer Service

  • Contact Us
  • Register your NS Instrument
  • Parts and Technical Support
  • Find a Dealer
  • FAQ
  • Owner’s Manuals

Copyright © 2025 · NS Design · Log in

Never miss a beat!

Join us to receive the latest updates about upcoming events, new product releases, special offers, and much more!

This field is for validation purposes and should be left unchanged.
We use cookies to ensure that we give you the best experience on our website. Learn more about our cookie policy.Accept