Seymour Duncan STC-3A - PREAMPLI ACTIVE 3 BAND
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Manufacturer Information
Seymour Duncan
https://www.seymourduncan.com
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Algam SAS
Email: contact@algam.net
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A Seymour Duncan Preamp Designed for Sound Customization
The Seymour Duncan STC-3a is aimed at bassists who want to go beyond "basic" settings and achieve finer EQ directly from the instrument. The goal is simple: to give you real flexibility to adapt your bass to your style, playing, and amp without losing clarity or punch.
For Which Bassists and Situations?
This active preamp is ideal if you play in varied styles (slap, fingerstyle, pick, rock, funk, metal, pop) and need to switch from a round, deep sound to a more present tone with just a few adjustments. In a band context, the 3-band EQ helps better "place" the bass in the mix: reinforcing the foundation, cleaning up an overly dominant frequency range, or highlighting the attack depending on the song.
3-Band EQ: Control, Precision, and Musicality
Thanks to its 3-band equalizer, the STC-3a allows you to work separately on key areas of the spectrum: lows for foundation, mids for presence and tone, and highs for definition. The transistor technology promotes a fast response and a sense of control, especially appreciated when you want a reactive and consistent bass. Designed for active pickups, this preamp integrates into performance-oriented electronics and requires installation suited for an active setup.
Technical specifications
| Category | electric preamp |
| Effects loop | No |
| EQ | Yes |
| Headphone output | No |
| Color | Black |
| Type | active preamp |
| Technology | transistors |
| Additional specs | for active pickups |
Questions frequently asked
Is the Seymour Duncan STC-3a compatible with passive pickups?
The STC-3a is specified for active pickups. Its installation therefore requires an electronic setup suited to this type of pickups.
What equalization settings does this bass preamp offer?
The active 3-band EQ operates separately on the lows, mids, and highs. The lows reinforce the foundation, the mids adjust presence and tone, while the highs influence definition.
Is this preamp suitable for slap and rock styles?
Its 3-band configuration allows adjustment of the sound for genres such as slap, fingerstyle, pick playing, rock, funk, metal, or pop.
Is there an effects loop on the STC-3a?
No effects loop is integrated into this active preamp.
Does the STC-3a have a headphone output?
The technical specifications indicate the absence of a headphone jack. The electronics are based on transistor technology and the unit is finished in black.



