Mantle

The Mantle from Walrus Audio is a premium bass preamp and DI developed with Ian Martin Allison, designed to deliver a refined, studio-ready foundation in any setting. At the heart of the circuit are proprietary, custom-wound Sapphire transformers, engineered to deliver authoritative low end and a powerful midrange push reminiscent of a classic Neve circuit, paired with an open, articulate top end inspired by API-style preamps. The result is a harmonically rich, dimensional tone that enhances your bass without masking its character. With musical gain, carefully tuned EQ, generous headroom, and transformer-balanced outputs, the Mantle ensures your signal reaches amps, interfaces, or mixers with clarity, depth, and confidence.