Martin MA535 Phosphor Bronze Acoustic Guitar Strings – Custom Light (.011-.052) | Bulk Box of 25 Sets | No Limit Guitar Co, Idaho Falls
Martin designs their strings the same way they design their guitars — with maximum performance, exacting tone, and playability as the guiding priorities. The MA535 Custom Light set delivers excellent tone, clarity, and response from a 92/8 phosphor bronze winding over a steel core, with tin-plate coating on select strings for extra longevity and enhanced tone. This bulk box of 25 sets is bundled by string gauge rather than in 25 individually packaged sets — the ideal solution for guitar shops, repair technicians, music educators, and high-volume players who want Martin's proven string quality in a bulk format that reduces cost per set and keeps a reliable string supply on hand at all times.
Product Overview
Martin's string manufacturing philosophy mirrors their instrument-building approach — the highest-quality materials available, subjected to rigorous premarket testing for consistency and quality before any set leaves the facility. Every MA535 set is built to the same performance standard as individually packaged Martin strings, with no compromise in materials or manufacturing quality in the bulk format. The 92/8 phosphor bronze winding — 92% copper, 8% tin and phosphorus — is the most widely used acoustic guitar string winding material for good reason: it produces the warm, balanced, full-frequency acoustic tone that the majority of acoustic guitarists expect and rely on, with a naturally rich character that suits everything from fingerpicking to aggressive strumming.
The Custom Light gauge (.011, .015, .023, .032, .042, .052) occupies the practical middle ground between Extra Light and Light gauges — lighter than a standard light set for easier fretting and more comfortable bending, while heavier than extra light sets for fuller tone and better volume projection. Custom Light is one of the most popular acoustic guitar string gauges for players who want playability without sacrificing too much tonal body, and it's particularly well-suited to players with lighter touch, smaller-bodied acoustic guitars, or anyone who finds light gauges slightly too stiff for their playing style.
The bulk box format bundles strings by gauge rather than in 25 pre-packaged sets — a practical distinction for high-volume use. Individual strings are packed together by gauge, allowing efficient access and distribution in a shop, classroom, or teaching studio setting without the packaging overhead of 25 individually wrapped sets. At 25 sets per box, this is an excellent stock-up solution for any operation that goes through acoustic guitar strings regularly.
Ideal For
- Guitar shops and repair technicians who want a reliable, high-volume acoustic string supply at a reduced cost per set
- Music educators and teaching studios who restring student guitars regularly and need a dependable bulk string supply
- High-volume players who go through strings frequently and want the cost efficiency of bulk purchasing without compromising on Martin string quality
- Acoustic guitarists who prefer the Custom Light gauge's balance of playability and tonal body for fingerpicking and strumming alike
- Musicians in Idaho Falls looking for Martin's professional-grade phosphor bronze acoustic strings in a bulk format
Key Features
92/8 Phosphor Bronze Winding
The industry-standard 92/8 phosphor bronze winding — 92% copper, 8% tin and phosphorus — produces the warm, balanced, full-frequency acoustic tone that makes phosphor bronze the most widely used acoustic guitar string winding material.
Tin-Plate Coating for Longevity
Tin-plate coating on select strings provides extra longevity and enhanced tone — extending the usable life of each set and maintaining consistent tone output over more playing time.
Custom Light Gauge — .011 to .052
The Custom Light gauge (.011, .015, .023, .032, .042, .052) balances easier playability with solid tonal body — lighter than standard light for comfortable fretting and bending, with more projection than extra light sets.
Martin's Rigorous Premarket Testing
Every set is subjected to Martin's premarket quality and consistency testing — the same standard applied to individually packaged Martin strings, maintained in the bulk format.
Bulk Box of 25 Sets
Twenty-five sets per box at a reduced cost per set — bundled by string gauge rather than individually packaged, ideal for high-volume shop, studio, and educational use.
Highest-Quality Materials
Built from the same premium materials used across Martin's full string lineup — steel core, 92/8 phosphor bronze winding, and tin-plate coating for maximum performance, tone, and durability.
What's Included
- Martin MA535 Phosphor Bronze Custom Light Acoustic Guitar Strings (.011–.052), Bulk Box of 25 Sets
- Free standard shipping
Note: Strings are bundled per gauge, not in 25 individually packaged sets.
Technical Specifications
| Specification | Details |
|---|---|
| Model | MA535 |
| Guitar Type | Acoustic Guitar |
| Number of Sets | 25 (Bulk Box, Bundled by Gauge) |
| Number of Strings | 6 |
| Gauge | Custom Light (.011, .015, .023, .032, .042, .052) |
| Core Material | Steel |
| Winding Material | 92/8 Phosphor Bronze |
| Coated | No (Tin-Plate on Select Strings) |
| Manufacturer Part # | 41BULKBOXMA535 |
Get Your Hands on This Bulk String Box Today
The Martin MA535 Phosphor Bronze Custom Light Bulk Box of 25 Sets is available now at No Limit Guitar Co in Idaho Falls. Stop in to pick one up or reach out online to order yours — Martin's professional-grade acoustic strings in the volume format that keeps your supply stocked and your cost per set down.
