Retail $749.99
3 Interest-Free Payments Available with  Learn more
$399.99 Special Price

$499.99 regular. Offer valid starting Sept 15, 2020 on select guitars in select colors, while supplies last. Very limited quantities. Not valid on previous purchases. Offers valid only on MichaelKellyGuitars.com and in the United States. Not valid on 3rd party websites or through authorized dealers.

    Select a color: Satin Black Wash

  • 508X  - Satin Black Wash
Email to buy

Great 8 Mod

The Great 8 electronics mod is one of our most demanded mods. With this mod we double the sonic spectrum of our two-humbucker instruments. You still have the full powered tone of each humbucker and the traditional settings to give you neck, bridge or both. With Great 8 we add two push-pull switches to the volume and tone knobs, that when pulled up one coil of the humbucker is disengaged giving you a cleaner single coil tone. You can control each pickup separately, maximizing your options. What can you do with 8 sonic options?

Hear it now:
Hear it now:
Hear it now:
Hear it now:
Hear it now:
Hear it now:
Hear it now:
Hear it now:
Hear it now:
Hear it now:
Hear it now:
Hear it now:


We started from scratch to develop the 508X. We wanted to give our extended range players a feature-packed, great-sounding 8 string. In developing this instrument, we focused on the feel of the neck, increased access to the high frets, and enhanced sonic options. Together, these priorities produced a 8-string that sounds terrific and feels natural and intuitive.

You will love the sound and the sonic options on the 508X. We used specially-voiced Rockfield SW8s and then expanded the tone options with our Great 8 wiring mod. Use the provided push-pull pots to transition from the full throat sound of these humbuckers to a single coil classic tone.

The 508X brings everything to the table in terms of feel and performance and looks like a rock star doing it with a Satin Black Wash finish.

  • MK08XBWERU Satin Black Wash PRODUCT ID MK508XSBW



  • Top: Quilt Maple
  • Body: Alder
  • Binding: Natural Body Wood Stripe
  • Construction: Full-Access, Bolt On


  • Neck: Rock Maple
  • Fretboard: Macassar Ebony
  • Fretboard Radius: 15 3/4"/ 400mm
  • Number of Frets: 24 Medium Jumbo
  • Scale Length 28” / 711.2mm
  • Truss Rod Type Dual Action
  • Neck Width: At Nut: 2.125" / 54mm
    At 12th Fret: 2.676" / 68mm
  • Neck Thickness: At 1st Fret: 0.748" / 19mm
    At 12th Fret: .798" / 20.29mm
  • Nut Material: Bone
  • Nut Width: 2.125” / 54mm
  • Strings: D'Addario


  • Electronics: Great 8 Mod - Master Volume (push/pull coil tap) - Master tone (push/pull coil tap) - 3 way blade switch
  • Neck Pickup: Rockfield® SW8 (voiced specifically for the Michael Kelly 508)
  • Bridge Pickup: Rockfield® SW8 (voiced specifically for the Michael Kelly 508)


  • Hardware Finish: Black
  • Tuning Keys: MK Die Cast
  • Bridge Type: MK8 Deluxe Hardtail

California Proposition 65 Warning

Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

You've added an item to the cart! ×