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Seymour Duncan STC-2ASB Fundamental 2-Band Tone Circuit For Active Pickups vs Seymour Duncan STC-3M4 3-Band Tone Circuits for Music Man (4 Knobs)
The STC-2ASB is a minimalist 2-band preamp for active pickup systems with a pull-up frequency contour switch, while the STC-3M4 is a full 3-band preamp designed as a drop-in replacement for Music Man passive pickup instruments with a push/pull slap switch. Choose the STC-2ASB if you play fretless bass with active pickups and want clean EQ in a compact layout; choose the STC-3M4 if you own a Music Man guitar or bass with passive pickups and need three-band control plus percussive texture options.
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Seymour Duncan STC-2ASB Fundamental 2-Band Tone Circuit For Active Pickups
Seymour Duncan STC-3M4 3-Band Tone Circuits for Music Man (4 Knobs)
Specs side by side
| Seymour Duncan STC-2ASB Fundamental 2-Band Tone Circuit For Active Pickups | Seymour Duncan STC-3M4 3-Band Tone Circuits for Music Man (4 Knobs) | |
|---|---|---|
| Price | $165.00 | $165.00 |
| Brand | Seymour Duncan | Seymour Duncan |
| Pickup Type | Any Position | Any Position |
| Condition | New | New |
Why choose Seymour Duncan STC-2ASB Fundamental 2-Band Tone Circuit For Active Pickups
- ✓ Only requires three control knobs, keeping cavity clean and minimalist
- ✓ Designed specifically for active pickup systems with surgical blend control
- ✓ Frequency contour switch accessed via pull-up volume knob eliminates extra hardware
- ✓ Ideal for fretless bass with smooth, articulate tone and high headroom
Why choose Seymour Duncan STC-3M4 3-Band Tone Circuits for Music Man (4 Knobs)
- ✓ Three-band EQ (bass, treble, midrange) offers more comprehensive tone shaping than 2-band
- ✓ Drop-in replacement engineered for Music Man instruments and four-knob cavities
- ✓ Proprietary Slap Switch delivers instant percussive texture via push/pull master volume
- ✓ Works with passive pickups, making it compatible with more instrument types
Frequently asked questions
Which preamp works with my pickup system?
The STC-2ASB is built for active pickup systems only. The STC-3M4 is engineered for passive pickups and is a drop-in replacement for Music Man instruments. Verify your pickup type and instrument compatibility before purchasing.
How many bands of EQ does each offer?
The STC-2ASB provides 2-band control (bass and treble) with a frequency contour switch for preset voicings. The STC-3M4 offers full 3-band control with dedicated bass, treble, and midrange knobs for more detailed tone shaping.
What is the Slap Switch on the STC-3M4?
The Slap Switch is a proprietary feature activated by pushing/pulling the master volume knob on the STC-3M4. It instantly adds percussive texture to your tone and can be customized via trim potentiometers on the circuit board.
Do both preamps use the same battery setup?
Yes, both run on a single 9V battery with the option to wire two 9V batteries in series for increased headroom and dynamic range if your playing demands it.