---
product_id: 17863412
title: "Thomastik-Infeld JF345 Bass Guitar Strings: Jazz Flat Wounds 5-String Long Scale Set; Pure Nickel Flats G, D, A, E, B Set"
brand: "thomastik-infeld"
price: "717.75 DT"
currency: TND
in_stock: true
reviews_count: 13
url: https://www.desertcart.tn/products/17863412-thomastik-infeld-jf345-bass-guitar-strings-jazz-flat-wounds-5
store_origin: TN
region: Tunisia
---

# smooth, warm flatwound tone 5-string long scale set extended durability nickel alloy Thomastik-Infeld JF345 Bass Guitar Strings: Jazz Flat Wounds 5-String Long Scale Set; Pure Nickel Flats G, D, A, E, B Set

**Brand:** thomastik-infeld
**Price:** 717.75 DT
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your bass game with the flatwound strings pros swear by!

## Quick Answers

- **What is this?** Thomastik-Infeld JF345 Bass Guitar Strings: Jazz Flat Wounds 5-String Long Scale Set; Pure Nickel Flats G, D, A, E, B Set by thomastik-infeld
- **How much does it cost?** 717.75 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/17863412-thomastik-infeld-jf345-bass-guitar-strings-jazz-flat-wounds-5)

## Best For

- thomastik-infeld enthusiasts

## Why This Product

- Trusted thomastik-infeld brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Coated for Durability:** Stay stage-ready longer with strings that resist wear without sacrificing feel.
- • **Legendary Jazz Flatwounds:** Experience the iconic Thomastik-Infeld tone that’s defined generations of bassists.
- • **Highly Flexible Steel Core:** Effortless playability with enhanced string longevity and consistent output.
- • **Pure Nickel Ribbon Winding:** Unmatched smoothness and balanced harmonics for that warm, vintage vibe.
- • **Precision Gauges for Perfect Tone:** From .043 to .136, engineered for rich fundamentals and harmonic clarity.

## Overview

Thomastik-Infeld JF345 Jazz Flat Wound 5-string bass guitar strings combine a pure nickel ribbon winding with a pliable steel core to deliver extended durability, smooth warm tones, and high output fundamentals. Designed for long scale electric basses, these strings offer a vintage-inspired sound profile favored by professional bassists seeking rich harmonic depth and effortless playability.

## Description

Nobody knows flat wound bass strings better than Thomastik-Infield. SPIROCORE strings by Thomastik-Infield have been legendary among upright bassists for decades. Now the electric bassist can also experience the Thomastik-Infield sound. Thomastik-Infield utilizes a highly pliable steel core which is wrapped with a silk inlay. The outer winding is a true ribbon flat wound constructed of a special nickel alloy. The result is an incredible depth of tone and an enhanced fundamental which is unavailable from any other flat wound.

## Features

- Nickel flatwound roundcore Extended durability High output fundamentals Smooth and balanced Highly flexible steel core Gauge: .043, .056, .070, .100, and .136

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B0002F5DL4 |
| Best Sellers Rank | #56,984 in Musical Instruments (See Top 100 in Musical Instruments) #247 in Bass Guitar Strings |
| Body Material Type | Nickel |
| Brand Name | Thomastik-Infeld |
| Coating Description | coated |
| Color | silver |
| Connector Type | 3/4" 4-conductor |
| Customer Reviews | 4.4 4.4 out of 5 stars (54) 4.4 out of 5 stars |
| Finish Type | Uncoated |
| Global Trade Identification Number | 09003918701602 |
| Included Components | 5 strings |
| Instrument | Electric Bass |
| Item Type Name | Bass Guitar Strings |
| Item Weight | 181 g |
| Manufacturer | Other |
| Manufacturer Part Number | JF345 |
| Material Type | Nickel |
| Model Name | JF345 |
| Model Number | JF345 |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Recommended Uses For Product | Electric bass guitars, specially designed for vintage tone and harmonic damping |
| Set Name | Jazz Flat Wounds |
| Sound Profile | Warm |
| String Gauge | Medium |
| String Material Type | Nickel Steel |
| Unit Count | 5 Count |
| Warranty Description | Manufacturer's warranty. |

## Product Details

- **Brand:** Thomastik-Infeld
- **String Gauge:** Medium
- **Color:** silver
- **Instrument:** Electric Bass
- **String Material Type:** Nickel Steel

## Images

![Thomastik-Infeld JF345 Bass Guitar Strings: Jazz Flat Wounds 5-String Long Scale Set; Pure Nickel Flats G, D, A, E, B Set - Image 1](https://m.media-amazon.com/images/I/61StrCscLkL.jpg)
![Thomastik-Infeld JF345 Bass Guitar Strings: Jazz Flat Wounds 5-String Long Scale Set; Pure Nickel Flats G, D, A, E, B Set - Image 2](https://m.media-amazon.com/images/I/51RV6EMhL4L.jpg)
![Thomastik-Infeld JF345 Bass Guitar Strings: Jazz Flat Wounds 5-String Long Scale Set; Pure Nickel Flats G, D, A, E, B Set - Image 3](https://m.media-amazon.com/images/I/61oz69CsSgL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ All I can say is WOW these are nice strings - lots of warmth!
*by  on Reviewed in the United States December 31, 2024*

I'm a long time Fender Jazz American Standard player, so I am very used to getting a nice warm tone out of my basses. I recently bought a custom luthier's creation, and he used dual Aguilar M5 pickups, on a chambered body, with steel roundwounds. I found the bass to be very bright compared to what I am used to. I read a lot of reviews about Thomastik-Infeld Pure Nickel Flats, and connected with a string expert who recommended them to mellow out the tone, and I read that Carol Kaye swears by them, so I took the plunge. Conclusion: Carol Kaye is not wrong. These strings are extremely warm, seem to be pretty low tension, are just plain easy to play, and the tone is so much better now. While they are on the expensive side, I am really happy that I purchased them, they tamed the aggressive brightness of the new bass right down.

### ⭐⭐⭐⭐⭐ Expensive and Worth It. Now Using on P-Bass & Love 'Em
*by  on Reviewed in the United States August 26, 2021*

Been using the TI Jazz Flats on my fretless Roscoe LG3005 for many years and love them. But for my P-Bass I've been struggling to find the right set of 5-string flats. My local luthier felt the TIs were too "flabby" for a P-Bass, so I stayed away on that guitar.After trying the LaBella Deep Talking Bass and the D'Addario Chromes for several months without feeling any love, I decided to put the TI Jazz Flats on it. Why did I wait so long? They feel great and sound fantastic. That pronounced midrange with the detailed harmonic content is exactly what I'm missing in the other brands, and the TIs just feel great to play.I'm aware of those who say the tension is too low for use on a P-Bass. YMMV, but I knew I made the right call as soon as I installed the TI Jazz Flats. This was validated by the FOH engineer who mixed us in July (Chromes), raved about the improved tone & where it all sat in the mix for our August gig (TI Jazz Flats).They aren't cheap, but they'll last a long time and you'll always feel the love!

### ⭐⭐⭐⭐⭐ When sliding down the bass (looking for that nice "VOOOOOOM" sound) you have to know how to finesse ...
*by  on Reviewed in the United States August 8, 2017*

These strings are very smooth, and they make my bass sound very different from other basses. I have had other people play on my strings and the were just mesmerized at the smoothness of it, some were a bit thrown off, but they got used to the feel of the strings. The sustain that I get from notes is a noticeable improvement. When sliding down the bass (looking for that nice "VOOOOOOM" sound) you have to know how to finesse it the strings to work with the fret board. Playing in the high register with these strings, It is as if my bass is singing. With the right EQ and the right touch you can get a nice slapping sound from these strings. I gave my guitar tech these strings to setup for me, and he told me that "Theses strings are the best strings on the planet, you will never have to change them". I believe Thomastik-Infeld has made a very good product. These strings for now, are part of my bass sound, I enjoy playing with them.

## Frequently Bought Together

- Thomastik-Infeld JF345 Bass Guitar Strings: Jazz Flat Wounds 5-String Long Scale Set; Pure Nickel Flats G, D, A, E, B Set
- Jim Dunlop Straplok Dual Design Strap Button Set-Nickel-2/Set (2PSLS031N)
- Jim Dunlop Straplok Dual Design Strap Button Set-Black-2/Set (2PSLS033BK)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-15*