Grace Design m303 Active DI Box

Grace Design M303 Active Truly Isolated Direct Box delivers the purest sound with cutting-edge isolation and precision. Whether you’re performing live or recording in the studio, this DI box ensures zero interference and unmatched audio fidelity every time you plug in.

The Grace Design M303 isn’t just another DI box—it’s the ultimate tool for musicians, engineers, and audiophiles who demand absolute clarity. This active, transformer-coupled DI eliminates hums and buzzes, allowing your instrument to shine in any environment. With its low-noise design, 13dB pad, and galvanic isolation, the M303 handles even the hottest signals without distortion. Whether you use it with bass, acoustic guitar, keyboards, or studio equipment, the M303 ensures your signal is delivered with unparalleled transparency and balance.

Grace Design m303 Active DI Box Features

• Active circuitry: Maintains a strong, interference-free signal.
• Galvanic isolation: Prevents ground loops and noise.
• Lundahl transformer: Provides superior audio transparency.
• 13dB pad switch: Handles high-output instruments without distortion.
• Ground lift switch: Eliminates hum for clean, professional sound.
• Durable build: Rugged enough for live performances and extensive studio use.

Grace Design m303 Active DI Box Specs

• Type: Active direct box
• Inputs: 1/4″ TRS, XLR
• Outputs: Balanced XLR (isolated)
• Pad: 13dB switchable pad
• Power: 48V phantom power or 9V battery
• Ground Lift: Yes

Grace Design m303 Active DI Box Dimensions

• Dimensions: 5.9″ x 3.4″ x 1.5″
• Weight: 1.5 lbs

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