Martin Authentic Acoustic SP 80/20 Bronze Bluegrass Guitar Strings

Martin Authentic Acoustic SP 80/20 Bronze Bluegrass Guitar Strings


Out of stock

Unavailable for purchase

Retail Finance

The Martin Authentic Acoustic SP 80/20 Bronze Bluegrass guitar strings are part of Martin’s brand new line of acoustic guitar strings, offering incredible performance.

Superior Performance for Studio and Stage

Engineered with you, the performer, in mind, Martin Authentic Acoustic SP acoustic guitar strings demonstrate excellent durability and fantastic tone.

Martin have taken their highest tensile-strength core wire and tin-plated it for all six strings for increased corrosion resistance.

Combined with Martin’s highest quality wrap wire, these strings will consistently deliver beautifully true tone.

80/20 Bronze Bluegrass Guitar Strings

This particular set of Martin guitar strings is an 80/20 bronze set, giving you a brighter tone than what you’d find from other types of guitar string such as phosphor bronze.

With a combination of plain strings from a Light gauge set and the wound strings of a Medium gauge set, these strings give you the full-bodied sound required for rhythm playing with the playability required for great lead work – ideal for Bluegrass style.

  • Gauges: 12, 16, 25, 35, 45, 56

Buy these Martin Authentic Acoustic SP 80/20 Bronze Bluegrass acoustic guitar strings from PMT Online and enjoy excellent tuning stability, fantastic corrosion resistance and amazing playability.

More Information
Manufacturer Martin
SKU 181219
Shipping Weight (kg) 0.050000
String Material 80/20 Bronze
String Pack Type Set
String Scale Standard Scale
Series Authentic Acoustic Strings
String Gauge 12 Gauge
Number Of Strings 6 string


We have a wide range of Delivery Options available, depending on the value of your parcel and budget. Select from our 2-3 Day Saver Service or our Next Working Day options at the Checkout.
This will include a text or email on the day of delivery giving you an exact hour window of when your gear will be with you, and the drivers name - just so you know when to turn the volume down!

  • Free Delivery Available on Selected Products
  • Weekend UK Mainland Delivery (Saturday-Sunday): £19.99
  • Small Items (Under 750g) Small items will be delivered by Royal Mail starting from 99p
  • Heavy Items (Over 30kg): Pallet Service Doorstep Delivery £65

For heavy items, courier details, out of stock products, out of area postcodes or international deliveries see our full Delivery info here.


Rather not wait in for the delivery? Don’t worry, we’ve got you…In Stock items can be ordered and paid for in-advance Online via our Click & Collect service. As long as if it's in stock at your chosen branch, you can collect the item within the hour.

Click here for more about our local Click & Collect Service.


If you and your item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT experts either by phone or email to return your item.

*Please note, we cannot accept returns of:

  • Special/Custom Orders - Any order that is custom or has been personalised.
  • Products with Hygiene Seals - Microphones, any in-ear earphones, monitors, orchestral instruments with mouthpieces and any other items that touch your mouth, nose or inner ear if you have broken the hygienic seal on the packaging.
  • Software & Media - Any software or media that has been opened or registered via physical or digital means.

Click here for more information on Returns at PMT.

Online Orders

If you and your new item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT Experts either by phone or email to return your item or organise an exchange for something more suitable.

Store Orders

If you've changed your mind about something you bought in-store, bring it back within 14 days of purchase and we'll be happy to exchange it for another product, a gift card or store credit.