Walrus Audio / Mantle Analog Bass Preamp DI

The Walrus Audio Mantle is a premium analog preamp/DI for bass. Featuring Walrus Audio's proprietary ""Sapphire Transformers,"" it delivers both the powerful low-mid range characteristic of Neve-style preamps and the clear high frequencies of API-style preamps. Suitable for a wide range of applications, from live performances to recording, it produces a high-quality sound that brings out the nuances of the instrument.

■Bass Effects Pedal

■Preamp/DI

■Power Supply

9V DC (500mA or more), center negative, 2.1mm plug

*Isolated power supply recommended / Power adapter sold separately

■Size/Weight

Size: 15.5(W) × 5.8(H) × 12(D) cm

Weight: 950g

■Internal Specifications

Internal voltage is boosted to +24V to ensure high headroom

■Impedance

Input Impedance: 1MΩ

Output Impedance: 150Ω (Balanced/Unbalanced)

■Audio Performance

Noise Floor: -101dBV (Balanced), -94dBV (Unbalanced)

THD (1kHz / 1Vrms): 0.04%

Frequency Response: 20Hz～20kHz

■Gain/EQ

Gain Range: -6dB to +23dB

EQ Boost: 0dB to +15dB

*Walrus For audio products, the use of isolated power supplies is recommended (daisy-chaining is not recommended).

The Walrus Audio ""Mantle"" is a premium analog preamp/DI pedal designed specifically for electric bass. Bassist Ian Martin Allison participated in its co-development, pursuing practical and musical sound shaping. At the core of the circuitry is a uniquely designed ""Sapphire Transformers,"" achieving a balanced combination of powerful lows and mids reminiscent of Neve, and transparent highs derived from API.

With its meticulously tuned EQ and ample headroom, it produces a rich harmonic and impactful sound without sacrificing the bass's inherent nuances. It delivers high performance on live stages, as well as in recording and home environments. The transformer-balanced output ensures stable, high-quality signal transmission to amplifiers, audio interfaces, and mixers. This is a professional-grade unit that brings the player's ideal sound to life.