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Custom Audio 3+ SE Guitar Preamp

Custom Audio 3+ SE Guitar Preamp

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Page last updated Feb 02, 2026

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Description

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Elevate your guitar's tonal possibilities with the Custom Audio 3+ SE Guitar Preamp. Engineered for discerning musicians, this preamp is a testament to precision and versatility. It offers three distinct channels to deliver a broad tonal spectrum, from pristine cleans to saturated overdrives. Designed by Custom Audio Electronics, this preamp retains your guitar's natural warmth while adding dynamic range and clarity to your sound.

The 3+ SE stands out with its intuitive control layout, allowing for precise adjustments to each channel. This ensures that whether you're in the studio or on stage, you can dial in the perfect tone with ease. With a rugged build quality, this preamp is crafted to withstand the rigors of touring, making it a reliable companion for live performances.

Musicians will appreciate the preamp's ability to integrate seamlessly into any setup, thanks to its flexible connectivity options. Whether you're running through a traditional amp setup or a modern digital rig, the Custom Audio 3+ SE provides consistent, high-quality sound that enhances any musical style.

Key Features:

Three distinct channels for a wide range of tones
Designed by Custom Audio Electronics for premium sound quality
Intuitive control layout for easy tone adjustments
Rugged construction suitable for touring
Compatible with both traditional and digital setups

Videos

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Kan Lyd

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Kan Lyd

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JM Shepard

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Custom Audio 3+ SE Guitar Preamp.

Comparisons

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The Custom Audio 3+ SE might have contributed to the Rust in Peace album, alongside amps like the 2203 and Bogner Fish, indicating its versatility and tonal depth.
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Dave Mustaine's preference for mixing T75 and Greenback speakers highlights the tonal flexibility achievable when pairing the 3+ SE with varied speaker types.
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The 3+ SE is favored for its ability to replicate modifications similar to Suhr's SE-100 amp, providing a comparable tonal quality in a preamp format.
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Use cases and applications

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The 3+ SE is noted for achieving mid-forward tones with high saturation, ideal for replicating the aggressive and punchy sound of "Tornado of Souls."
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The preamp is often slaved into Marshall power sections via tube effects return lines, enhancing its integration into complex live and studio setups.
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Features and functionality

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The 3+ SE was potentially used with VHT power amps, suggesting its compatibility with high-power setups for achieving complex, layered tones.
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Owners frequently use the 3+ SE for its clean channel, which emulates a vintage Fender circuit, offering pristine clean tones alongside its higher gain channels.
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Mods and upgrades

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The Custom Audio 3+ SE's channel two and three combine Suhr's Crunch and SE mods, offering users a versatile sound palette for various musical styles.
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User experience

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The amp's compatibility with Marshall G12 Vintage speakers is critical for achieving a sound close to early Green Day recordings, emphasizing the importance of speaker matching.
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