Colour: Black SatinColour: Sunburst 

NS Design NXT4a Omni Bass

List Price:  £1,870.00

UK Price:  £1,825.00 Inc. 20% VAT
Worldwide Price: £1,520.83



The NS Design Omni Bass, with its familiar 34" bass guitar scale, is the perfect choice for bass players interested in adding the character, expressiveness and tonal purity of an acoustic double bass to their performance palette, or for intrepid cellists seeking a radically modern means of musical expression.

Combining the tonal purity of an upright bass with the awesome power of a full-blown electric, the NXT Omni Bass is the perfect cross-over instrument for players with a more conservative budget.

Available in 4 and 5 string configurations, with a choice of Sunburst or Black Satin finishes, the NXTa Omni Bass is produced in the Czech Republic with the same meticulous care as the world renowned CR Series and features the unique, self-powered NS Polar™ Pickup System which captures the essence of plucked or bowed playing with stunning richness, control and clarity.

The NXT Omni Bass responds to the bow with a natural and expressive voice, combining powerful bass resonance with brilliant harmonics. Its strings are easily driven, making it possible for bassists with little bowing experience to add this beautiful dimension to their music. The passive on-board electronics eliminate the need for batteries and incorporate NS Design's innovative JackPot™ potentiometer in the volume and tone controls, ensuring that the NXT Omni Bass delivers a robust output and full-spectrum tone for the ultimate sound with any system, in any musical style.

34" Scale

The 34" scale length of the Omni Bass is the same as a standard electric bass. Tuned in fourths (E-A-D-G for the 4 string Omni Bass and B-E-A-D-G or E-A-D-G-C for the 5 string model), the fingering positions and spacing are identical to the bass guitar, and therefore immediately familiar to any bass player.

Solid Maple Construction

The solid maple body and neck, together with the graduated ebony fingerboard, deliver a rich, full tone that rings true for every note. 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 Design TransRadius™ Fingerboard

All fretless Omni Bass models feature the NS TransRadius™ fingerboard which employs a unique compound curve to provide the comfort and ease of a nearly-flat profile as the fingerboard approaches the nut, while transitioning to a curvature optimized for either plucked or bowed performance at the bridge. 

For a left-hand feel which is familiar to an experienced bass guitarist the radius at the nut is 9.25", whilst at the end of the fingerboard near the bridge the radius is just 2" — large enough to maintain good string-to-string articulation with the bow, yet still comfortable for pizzicato (plucked/picked) styles. The transition from nut to bridge features a carefully calibrated asymmetric convex curvature, providing optimal fingerboard relief at each position and facilitates an even 'growl' from the higher strings and a clear, powerful lower register.

The result is a remarkably comfortable, even feel for every style of performance. Bass guitarists will find the Omni Bass even more inviting than ever as a "cross-over" instrument, whilst traditional upright players will find the TransRadius design familiar since many upright basses are designed with some degree of compound fingerboard curvature.

For even greater control, players can adjust the two-way truss rod to tailor the neck relief to their particular needs.

Cascading Position Markers

Dots for each semi-tone cascade across the fingerboard, a unique configuration that provides a clear visual fingering reference. The logical dot pattern is of critical value to the novice player, and an invaluable reference guide for the seasoned pro.

Dual Mode Output

All NXTa series instruments feature battery-free, high performance active electronics with new capacitor-powered custom circuitry designed  by Mi-Si™ Electronics Design, taking the convenience, versatility and performance capability of the NXTa to an even higher level.

Active Mode
In Active mode, the user connects the supplied charger into an AC outlet for 60 seconds to power the circuit for up to 16 hours of performance time. The instrument can then plug straight into any amp, low or high impedance, 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.

Polar™ Pickup System

The Polar™ Bridge Pickup System combines great sound with directional sensitivity for a rich and expressive response to both Arco and Pizzicato techniques allowing the player to optimize bowed response and to control attack and decay characteristics for plucking. The Omni Bass responds to the bow with a natural and expressive voice, combining powerful bass resonance with brilliant harmonics. The strings are easily driven, making it possible for bassists with little bowing experience to add this beautiful dimension to their music. In either mode, the deep bass and brilliant highs possible with piezo crystal technology give the instrument a beautiful, dynamic, and versatile sound. 

WAV instruments are battery-free, eliminating the hassle and cost of batteries while helping protect our environment, and can be played using any amplifier with a high impedance input, or with any other gear using a direct box. 

Interchangeable Support Systems

NS Boomerang Strap SystemStandard issue with the Omni Bass, the Boomerang Strap System fits comfortably over the shoulder just like a guitar strap, with two adjustable articulated arms and a pivoting hub allowing the instrument to be placed in virtually any position, accommodating all playing styles.

An alternative Frame Strap System offers full mobility and amazing comfort, with a lightweight structure supported by a single shoulder strap that holds the bass out from the body in the correct positions for upright pizzicato and arco styles.

The optional, self-standing CR Tripod Stand provides stable fixed support for the instrument. Virtually any angle can be set whether you prefer standing or sitting. Alternatively, an End Pin Stand provides a more traditional upright bass feel and is easily adjustable so that the instrument remains evenly balanced without support. With the addition of the End Pin Conversion Kit  the Omni Bass plus End Pin assembly can be "parked" on the Tripod Stand, holding the instrument upright for on-stand performance or secured when not in use.

NS Omni Bass Strings by D'Addario™

The Omni Bass is equipped with a dedicated string set developed in collaboration with industry leaders D'Addario.

Featuring a stranded steel core with stainless steel and tungsten windings, these precision polished, low-tension, flatwound strings are effortless to play and uniquely responsive, producing singing highs and a deep low register with greatly minimized finger noise.

The bright pizzicato growl provides an authentic traditional acoustic tone, yet these strings deliver plenty of sustain and drive when you need it. They also respond much quicker to the bow than traditional bass strings, so an expressive bowing technique is easier to develop and maintain. 

The Omni Bass is also designed to accommodate any standard long scale bass guitar strings, adding unlimited set up options for musicians who want to explore and create their own unique sound.


A padded gig bag is included as standard, featuring a stand compartment, bow compartment, accessory pocket, handle and adjustable strap. Loaded weight is 6kg (15.2lb) including stand, and it will fit in the overhead luggage bin of most commercial aircraft.

An optional flight case is also available, constructed from aluminum edged plywood and measuring 145cm x 25cm x 25cm (57" x 10" x 10") with loaded weight of approximately 18kg (40lb) including stand.

Construction Solid, straight grain maple body & neck
Finish Black Satin with maple face or Sunburst with flame maple face
Fingerboard Hand graduated, TransRadius™ Ebony fingerboard; Intonation referenced with cascading dot markers & side dots
Bridge Pickup NS Polar™ directional piezo pick-up system
Electronics Toggle switch for Polar Pickup Balance (between pizzicato/arco modes), Rotary volume control with push-pull selection between 'Active' and 'Self-Powered' output modes, Tone control (treble roll off)
Truss Rod Single Action, accessible at nut
Tuning Machines 12:1 ratio, fully encased worm gear tuners, black finish
Length 111.8cm (44")
Width 15cm (5.7")
Thickness 10cm (4")
Weight 3.2kg (7.0lb)
Scale Length 34" (86.4cm)
Strings NS Design/D'Addario NS710 Flatwound, Medium tension, Stranded Steel Core
Strap NS Boomerang™ Strap System
Gig Bag Padded gig bag with handle, back-pack style strap and external compartments for bows, stands and accessories

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