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Seymour Duncan AJB-3ASB Steve Bailey Fundamental Fretless System 3-Band Tone Circuit vs Seymour Duncan ASB-2ASB Steve Bailey 6-String Fretless System 2-Band Tone Circuit
The AJB-3ASB is a 4/5-string system with a more comprehensive 3-band EQ for broader tonal sculpting, while the ASB-2ASB is purpose-built for 6-string fretless with a simpler 2-band circuit optimized for harmonic clarity. Choose the AJB-3ASB if you play 4 or 5-string bass and want maximum EQ control; pick the ASB-2ASB if you own a 6-string fretless and prefer streamlined, midrange-focused tone shaping.
No sales tax on orders shipped outside California — total cost beats national retailers that charge sales tax in nearly every state.
Seymour Duncan AJB-3ASB Steve Bailey Fundamental Fretless System 3-Band Tone Circuit
Seymour Duncan ASB-2ASB Steve Bailey 6-String Fretless System 2-Band Tone Circuit
Specs side by side
| Seymour Duncan AJB-3ASB Steve Bailey Fundamental Fretless System 3-Band Tone Circuit | Seymour Duncan ASB-2ASB Steve Bailey 6-String Fretless System 2-Band Tone Circuit | |
|---|---|---|
| Price | $485.00 | $475.00 |
| Brand | Seymour Duncan | Seymour Duncan |
| Pickup Type | Any Position | Any Position |
| Condition | New | New |
Why choose Seymour Duncan AJB-3ASB Steve Bailey Fundamental Fretless System 3-Band Tone Circuit
- ✓ 3-band EQ with separate bass, treble, and dedicated midrange control for versatile tone shaping
- ✓ Fits both 4 and 5-string basses
- ✓ Two onboard trim pots for customizable frequency contour presets
Why choose Seymour Duncan ASB-2ASB Steve Bailey 6-String Fretless System 2-Band Tone Circuit
- ✓ Purpose-designed for 6-string fretless instruments
- ✓ 2-band circuit with dedicated frequency contour optimized for fretless harmonics and midrange boost
- ✓ Pre-wired harness streamlines installation
Frequently asked questions
What bass models does each system fit?
The AJB-3ASB accommodates both 4 and 5-string basses. The ASB-2ASB is engineered specifically for 6-string fretless basses and cannot be used on 4 or 5-string instruments.
How many EQ bands does each system have?
The AJB-3ASB includes a 3-band EQ with separate bass, treble, and midrange controls. The ASB-2ASB features a 2-band EQ with bass and treble controls only.
Which system has better battery life?
Both systems deliver approximately 1,000 continuous hours per battery set. The AJB-3ASB runs on a standard 9-volt battery (with 18-volt option for headroom), while the ASB-2ASB uses a single 9v battery with the option to wire two in series for added headroom.
Are both systems hand-built and made in the USA?
Yes, both the AJB-3ASB and ASB-2ASB are hand-built in Santa Barbara, California, by Seymour Duncan.