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Seymour Duncan M Holcomb Alpha & Omega Set Matte Black 7-String Pickup vs Seymour Duncan AJB-2ASB Steve Bailey Fundamental Fretless System 2-Band Tone Circuit
The Seymour Duncan M Holcomb Alpha & Omega Set is a high-output 7-string guitar pickup system built for metal and progressive rock, while the Steve Bailey Fundamental Fretless System is a complete active electronics package for fretless bass. These are entirely different instrument categories—choose based on whether you play extended-range guitar or fretless bass.
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Seymour Duncan M Holcomb Alpha & Omega Set Matte Black 7-String Pickup
Seymour Duncan AJB-2ASB Steve Bailey Fundamental Fretless System 2-Band Tone Circuit
Specs side by side
| Seymour Duncan M Holcomb Alpha & Omega Set Matte Black 7-String Pickup | Seymour Duncan AJB-2ASB Steve Bailey Fundamental Fretless System 2-Band Tone Circuit | |
|---|---|---|
| Price | $309.00 | $309.00 |
| Brand | Seymour Duncan | Seymour Duncan |
| Pickup Type | — | Any Position |
| Condition | New | New |
Why choose Seymour Duncan M Holcomb Alpha & Omega Set Matte Black 7-String Pickup
- ✓ Designed specifically for 7-string guitars with tight low-end control
- ✓ High output (15.9k bridge) cuts through dense tunings and high-gain applications
- ✓ 4-conductor wiring enables coil-tap and series/parallel switching for tonal variety
- ✓ Includes shielded cable for noise-free installation
Why choose Seymour Duncan AJB-2ASB Steve Bailey Fundamental Fretless System 2-Band Tone Circuit
- ✓ Complete pre-wired active electronics system ready for fretless bass installation
- ✓ 2-band tone circuit with bass, treble, and blend controls for expressive playing
- ✓ Calibrated J-bass pickups engineered for fretless dynamics and nuance
- ✓ Long battery life (approximately 1,000 continuous hours per 9v battery)
Frequently asked questions
Can I use either of these in my instrument?
No—the Mark Holcomb set is exclusively for 7-string guitars, while the Steve Bailey system is designed for fretless bass guitars with Jazz Bass-sized control cavities. They are not interchangeable.
Which is better for metal music?
Only the Mark Holcomb set is suitable for metal. It features high output, ceramic magnets, and a cutting treble response optimized for aggressive, high-gain applications in metal and progressive genres.
Do these require battery power?
The Mark Holcomb set is passive and requires no battery. The Steve Bailey system is active and powered by a single 9v battery (or two in series for additional headroom).
What genres is each best suited for?
The Mark Holcomb set excels in metal, progressive, djent, and hard rock. The Steve Bailey system is engineered for fretless bass across jazz, funk, and expressive solo work where active tone shaping is valuable.