Walrus Audio Mantle Bass Preamp and DI - Black

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Refined Tone Foundation – The Walrus Audio Mantle Bass Preamp and DI The Mantle is a premium preamp and DI for electric bass, created in close collaboration with Ian Martin Allison. Designed to give your instrument an impeccable sonic foundation, the Mantle brings studio-grade refinement to any environment—whether you’re stepping onstage, tracking in the studio, or shaping your tone at home. High-impedance JFET input buffer for articulate, touch-sensitive response and exceptional clarity Up to +23dB of transformer-based gain offering clean, magnetic, harmonically rich amplification with premium depth and detail Custom-tailored bass and treble controls co-designed with Ian, utilizing a sophisticated blend of shelving, bandpass, and selectable LPF/HPF behaviors Transformer-balanced XLR output ensures expansive headroom, uncompressed dynamics, and commanding low-frequency extension High-headroom +24V internal power supply for clean dynamics and effortless low-end Active/passive pad and ground lift switches for enhanced compatibility to allow for more headroom if needed when using an active bass Flexible routing with 1/4-inch in/out and balanced XLR direct output for modern routing needs At the heart of the circuit are proprietary, custom-wound Sapphire transformers, engineered to deliver the authoritative low-end and midrange push reminiscent of a classic Neve circuit, paired with an airy, articulate top end inspired by revered API preamp architecture. Together, they provide a harmonically rich canvas that elevates your playing while preserving every nuance of your instrument. The Mantle empowers players to sculpt their signal with intention, offering musical gain, smartly tuned EQ, tremendous headroom, and transformer-balanced outputs. Every component and stage of the signal path is built to ensure whatever comes next—amp, interface, or mixer—receives your bass in its most confident, fully realized form. Signal Path Overview Input → JFET Buffer → Low-pass/