Walrus Audio is proud to announce Mantle, a premium preamp and DI for electric bass created in close collaboration with Ian Martin Allison of Scott’s Bass Lessons. Mantle is designed to give players a powerful sonic foundation with studio grade refinement in any setting, whether performing onstage, tracking in the studio, or shaping tone at home.
Mantle features two proprietary custom wound Sapphire Transformers, developed through years of research and refinement by the Walrus engineering team. The input transformer is inspired by classic Neve approaches to deliver strong low-end and midrange presence with clean handling of large signals. The output transformer takes influence from an API 312 output stage to provide quiet, balanced output and rich harmonic character.
The interface is intentionally simple with three large rotary knobs for Bass, Gain, and Treble. Mantle offers sparkling cleans to subtle transformer saturation without unpleasant breakup, and includes an Active or Passive pad to optimize signal headroom. The EQ is flexible and musical, operating as a broad bell boost above noon and switching into high-pass or low-pass filter behavior when cutting below noon. This allows powerful control over sub-lows, mids, and top-end content while remaining intuitive for fast tone shaping.
Additional features include transformer balanced XLR and 1/4 inch outputs that can be used simultaneously. Mantle delivers strong signal integrity and reliable performance whether feeding a console, interface, or bass amp.
Ian shares, “I needed this product to exist. I’m thrilled to say that now it does, and it is absolutely killer.”
Walrus Audio is offering the Mantle Analog Bass Preamp, DI for $749.99. Pre-orders begin today with shipments beginning early Febuary. Experience the Mantle exclusively at walrusaudio.com and authorized dealers worldwide.











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