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Seymour Duncan STC-3M3 3-Band Tone Circuits for Music Man (3 Knobs) vs Seymour Duncan STC-3M4 3-Band Tone Circuits for Music Man (4 Knobs)
The STC-3M3 uses a stacked bass/treble knob to fit three bands into three knobs, while the STC-3M4 dedicates four separate knobs to bass, treble, midrange, and master volume for more intuitive independent control. Choose the STC-3M3 if your bass has a three-knob cavity; choose the STC-3M4 if you have a four-knob cavity and prefer dedicated controls without stacking.
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Seymour Duncan STC-3M3 3-Band Tone Circuits for Music Man (3 Knobs)
Seymour Duncan STC-3M4 3-Band Tone Circuits for Music Man (4 Knobs)
Specs side by side
| Seymour Duncan STC-3M3 3-Band Tone Circuits for Music Man (3 Knobs) | 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-3M3 3-Band Tone Circuits for Music Man (3 Knobs)
- ✓ Fits three-knob control cavities on compatible Music Man basses
- ✓ Stacked bass/treble design reduces knob count while maintaining full 3-band EQ
- ✓ Two trim pots for fine-tuning slap contour EQ
Why choose Seymour Duncan STC-3M4 3-Band Tone Circuits for Music Man (4 Knobs)
- ✓ Four dedicated knobs provide more intuitive independent control of each frequency band
- ✓ Option to wire two 9v batteries in series for increased headroom and dynamic range
- ✓ Better for players who prefer separate bass and treble controls without stacking
Frequently asked questions
What's the main physical difference between these two circuits?
The STC-3M3 uses a stacked bass/treble control plus midrange and master volume (three knobs total), while the STC-3M4 has four separate knobs: bass, treble, midrange, and master volume. Your bass's control cavity determines which one fits.
Can I wire extra batteries for more headroom with both circuits?
The STC-3M4 explicitly supports wiring two 9v batteries in series for increased headroom and dynamic range. The STC-3M3 description does not mention this dual-battery option, suggesting it runs on single 9v battery operation.
Do both circuits have the Slap Switch feature?
Yes, both the STC-3M3 and STC-3M4 include a push/pull Slap Switch on the master volume knob, plus two trim potentiometers on the circuit board for preset slap contour EQ adjustment.
Which one is better for studio work versus live gigging?
Both are designed for studio and live use. The STC-3M3 is tagged for funk and jazz specifically, while the STC-3M4 emphasizes percussive texture, but both deliver the low noise and high headroom professional players need in either setting.