The Grace Design m303 Active Truly Isolated Direct Box is a game-changer for musicians seeking ultraquiet, interference-free DI performance. Crafted with precision, this DI box is built to excel in both studio and stage environments. The heart of the m303 is its custom-wound Lundahl transformer, offering unparalleled low-end clarity and pristine high-end detail. This active DI box boasts true galvanic isolation, ensuring complete ESD and RFI protection, making it a reliable choice for any setup.

Designed with versatility in mind, the m303 accommodates any line-level source and instruments with passive pickups through its high-impedance 1/4" input. The switchable -13 dB input pad and LED indicators for peak and power provide intuitive control, while the balanced XLR output and 1/4" thru connector ensure seamless signal routing. Encased in a robust, extruded aluminum chassis, the m303 is built to withstand the rigors of live performance and studio sessions alike.

Key Features:

• Active DI box with full galvanic isolation, powered by 48V phantom power
• Custom-wound Lundahl transformer for optimal low-end clarity and top-end detail
• Ultra-low distortion, noise, and wide frequency bandwidth (20 Hz to 80 kHz)
• 1-Mohm input impedance supporting any pickup or line signal
• Balanced XLR output and 1/4" thru connector
• Switchable -13 dB input pad; LED indicators for peak and power
• Rugged extruded aluminum chassis with recessed connectors and gold contact toggle switches

Product specs

FAQs

What is the primary benefit of using the Grace Design m303 Active Direct Box?

The Grace Design m303 provides galvanic isolation and low noise performance, making it ideal for both stage and studio applications. Its advanced power supply design ensures incredible headroom and dynamic range, delivering pristine audio quality.

Does the Grace Design m303 require external power?

The m303 is powered by 48V phantom power, eliminating the need for batteries or external power supplies, which simplifies setup and ensures consistent performance.

Can the Grace Design m303 handle high-output instruments?

Yes, the m303 features a -13dB pad that allows it to handle high-output sources without distortion, making it versatile for various instrument types.

What connectivity options does the Grace Design m303 offer?

The m303 provides a 1/4" input, an XLR output, and a 1/4" thru output, offering flexible connectivity for different audio setups.

Is the Grace Design m303 suitable for live performances?

Absolutely, the m303's active design and ground lift feature make it an excellent choice for live performances, reducing noise and hum effectively.