Fender Sub Sonic Flatwound 50-100 Stainless Steel Bass Guitar Strings

Fender Sub Sonic 9050 Flatwound Stainless Steel Bass Strings deliver a rich, mellow voice with an ultra-smooth feel, perfect when you want classic flatwound warmth and virtually no finger noise. Optimised for 34 inch scale instruments, this 50 to 100 set is ideal for players chasing deep, rounded lows and a refined top end, whether you are laying down reggae grooves, soulful R&B lines or silky jazz runs.

With a flatwound stainless steel construction, these strings offer a distinctive, old-school character while still retaining clarity and definition. The polished surface glides effortlessly under your fingers, making long sessions more comfortable and helping your technique feel cleaner and more controlled. Finished with Fender ball ends in classic colours and protective silk wraps at the tuner end, they are designed to install easily and perform consistently, gig after gig.

Classic Flatwound Warmth

Sub Sonic 9050 Flatwound strings are all about smooth, rounded tone. The flat outer wrap tames excessive brightness and delivers a full, supportive low end that sits beautifully in the mix. If you prefer a more vintage, thumpy character to your sound, these strings give you that unmistakable flatwound flavour straight out of the packet.

Ultra-Smooth Feel with Minimal Finger Noise

The polished flatwound surface feels incredibly slick under the fingers, making slides, position shifts and vibrato feel effortless. This smooth finish also dramatically reduces finger noise, which is especially useful in the studio or on quieter stages where every detail is heard. You get a cleaner, more controlled performance without having to change your technique.

Versatile for Fretless and Fretted Basses

These strings are a natural match for fretless bass, helping you achieve singing, vocal-like lines with a warm, even response across the neck. The flat surface is kinder to fretless fingerboards and helps bring out that expressive, singing quality. They are equally at home on fretted basses when you want a softer attack and more subdued top end for styles such as reggae, jazz, country and R&B.

Player-Friendly Fender Design

Fender Sub Sonic 9050 strings feature colour-coded ball ends to make string changes quick and intuitive. Silk wraps at the tuner post help protect the windings and promote smoother tuning, while the overall construction is designed for reliable performance on 34 inch scale instruments. Made in the USA, they offer consistent quality and feel from set to set.

• Flatwound Stainless Steel Construction - The flatwound stainless steel wrap delivers a mellow, rounded tone with a controlled top end, ideal for classic bass styles. You get the warmth and depth associated with traditional flats, along with the durability and consistency of stainless steel.
• Smooth Feel with Low Finger Noise - The polished flat surface glides under your fingertips and greatly reduces squeaks and handling noise. This makes them perfect for recording and for players who value a clean, refined sound with minimal distractions.
• Great for Fretless and Warm-Toned Setups - These strings excel on fretless basses and any instrument where you want a softer attack and rich, singing sustain. Their warm response suits reggae, jazz, country and R&B, helping your lines sit comfortably in the mix without harshness.
• 34 Inch Scale with Colour-Coded Ball Ends - Designed for standard 34 inch scale basses, the set includes Fender colour-coded ball ends for quick identification and easy restringing. Silk wraps at the tuner post help protect the windings and support stable tuning performance.

General

• Model: Fender Sub Sonic 9050 Flatwound Bass Strings
• String Type: Electric Bass
• Construction: Flatwound
• Material: Stainless Steel
• Scale Length: 34 inch
• Country of Manufacture: USA

Gauges

• G String: 050
• D String: 070
• A String: 090
• E String: 100

Ends

• End Type: Ball End
• Ball End Identification: Classic Fender Colours
• Tuner End: Silk Wraps