Dr Strings DDT-55 DROP-down Tuning 55-115
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What you need to know
What you need to know
- Tuning Stability designed for low tunings and tuning changes, with remarkable hold.
- Punch and Clarity maintained in drop tuning, even with an extra heavy gauge.
- Accurate Core Technology (ACT) : reinforced core to limit weaknesses along the entire length of the string.
- Manufacturing handmade in the USA, with a design tested over two years.
Manufacturer Information
Dr Strings
https://www.drstrings.com
drstaff@drstrings.com
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Safety manager:
HIGH TECH DISTRIBUTION
Email: pro@htd.fr
Address:
Drop Tuning Without Compromise: Tension, Precision, and Impact
Designed for bassists who drop their tuning without losing definition, the DDT-55 focus on a firm playing feel and clear response. Their concept goes beyond just "heavy gauge": the string remains stable, requires minimal retuning, and keeps a clean, readable low end, even when switching between multiple tunings. Thanks to ACT, the core is reinforced to promote richer tones, better precision, and increased longevity-ideal for styles demanding attack and sustain (rock, metal, drop tuning, etc.).
Technical specifications
| Format | standard | Nbr of strings | 4 |
| Type of cord attachment | Without | Color | Grey |
| Category | Bass | ||
| Model | Dr Strings DDT-55 Drop-Down Tuning | Metal | Stainless Steel |
| Type | bass strings | Technology | Accurate Core Technology (ACT) (reinforced core along the entire length) |
| Gauge | Extra Heavy 55-115 | Design | two-year testing period |
| Gauge Details | 55 75 95 115 | Manufacturing | handmade in the USA |
Questions frequently asked
Are these strings suitable for a 4-string bass in drop tuning?
The set is designed for 4-string basses and features an Extra Heavy gauge 55-115. It is intended for lowered tunings with a firm playing feel.
What are the gauges of the Dr Strings DDT-55?
The four gauges are .055, .075, .095, and .115.
What does the ACT technology do on the DDT-55?
Accurate Core Technology reinforces the core throughout its length. This design promotes precise response and richer tones. It also aims to increase longevity.
Are the DDT-55 stainless steel?
The metal of this string set is stainless steel. This material contributes to the defined low end and attack sought for rock or metal.
Where are the DDT-55 strings made?
The manufacturing is done by hand in the United States. The announced design is the result of a two-year testing period.



