Walrus Audio Mantle Bass Preamp and DI

Presenting the new Walrus Audio Mantle Bass Pre-Amp/DI: The Ultimate Foundation for the Modern Bassist.

Elevate your instrument’s sonic identity with the Mantle, a premium bass preamp and DI designed in collaboration with Ian Martin Allison.

Whether you are tracking in a high-end studio, performing on a world stage, or refining your tone at home, the Mantle provides an impeccable, studio-grade foundation that ensures your bass is heard in its most confident, fully realized form.

Dual-Transformer Architecture: The Best of Both Worlds
The Mantle is built around proprietary, custom-wound "Sapphire" transformers. This circuit provides a harmonically rich canvas by blending two legendary sonic profiles:

• The Power of Neve: The input transformer delivers an authoritative low-end and midrange push, handling large signals with pristine clarity and zero unwanted distortion.
• The Clarity of API: Inspired by the API 312, the output transformer provides an airy, articulate top end while balancing your signal for long cable runs without signal loss.

Sophisticated Tone Sculpting
Forget standard, lackluster EQ shelves. The Mantle features a dual-behavior system co-designed with Ian Martin Allison to offer professional precision:

• Musical Boosting: Positions 7–11 act as a shelf that transitions into a broad bell, adding up to +15dB of gain without introducing muddiness or harshness.
• Precision Cutting: Positions 5–1 introduce steep -18dB/oct filters (HPF for Bass, LPF for Treble) at selectable frequencies to clean up your mix instantly.

Key Features of the Mantle at a glace:

• High-Impedance JFET Buffer: Ensures an articulate, touch-sensitive response and exceptional clarity for your instrument.
• +18dB Transformer Gain: Offers clean, magnetic, and harmonically rich amplification with premium depth.
• Massive Headroom: An internal +24V power supply ensures effortless low-end and uncompressed dynamics.
• Flexible Routing: Features 1/4" In/Out for amps/pedals and a balanced XLR output for FOH or studio interfaces.
• Active/Passive Compatibility: Includes a -10dB pad to prevent overloading the input when using high-output active basses.