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Seymour Duncan STC-3ASB Fundamental 3-Band Tone Circuit For Active Pickups vs Seymour Duncan STC-3PSB Fundamental 3-Band Tone Circuit For Passive Pickups
The STC-3ASB is built for active pickups and includes adjustable frequency contour via pull-up volume control, while the STC-3PSB is designed for passive pickups with a focus on high headroom and low noise. Choose the STC-3ASB if you run active pickups; choose the STC-3PSB if your instrument has passive pickups.
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Seymour Duncan STC-3ASB Fundamental 3-Band Tone Circuit For Active Pickups
Seymour Duncan STC-3PSB Fundamental 3-Band Tone Circuit For Passive Pickups
Specs side by side
| Seymour Duncan STC-3ASB Fundamental 3-Band Tone Circuit For Active Pickups | Seymour Duncan STC-3PSB Fundamental 3-Band Tone Circuit For Passive Pickups | |
|---|---|---|
| Price | $195.00 | $195.00 |
| Brand | Seymour Duncan | Seymour Duncan |
| Pickup Type | Any Position | Any Position |
| Condition | New | New |
Why choose Seymour Duncan STC-3ASB Fundamental 3-Band Tone Circuit For Active Pickups
- ✓ Designed specifically for active pickup systems
- ✓ Includes extended headroom option for active output
- ✓ Adjustable frequency contour via pull-up volume control
- ✓ Pre-wired harness kit reduces soldering work
Why choose Seymour Duncan STC-3PSB Fundamental 3-Band Tone Circuit For Passive Pickups
- ✓ Purpose-built for passive pickup compatibility
- ✓ High headroom and low-noise design optimized for passive signals
- ✓ Dual battery wiring option for passive high-output applications
- ✓ Clean, transparent tone shaping without coloration
Frequently asked questions
What's the main difference between these two circuits?
The STC-3ASB is optimized for active pickup systems and includes extended headroom features for higher output signals. The STC-3PSB is designed for passive pickups and emphasizes low-noise performance with high headroom for passive signal levels.
Can I use either one with my pickup type?
No. Each circuit is engineered for its specific pickup type—active or passive. Using the wrong one may result in suboptimal noise performance, headroom mismatch, or signal coloration.
Do both support dual 9V batteries for extended headroom?
Yes, both circuits can run on a single 9V battery or be wired with two 9V batteries in series for increased headroom, though the benefit is calibrated differently for active versus passive pickup levels.
Which is better for live performance?
Both are suitable for live performance. Choose based on your pickup type: STC-3ASB for active pickups, STC-3PSB for passive pickups. The STC-3PSB's low-noise design is particularly valued in live settings with passive systems.