In the world of high-fidelity sound, the Grace Design m303s Active Stereo Isolated Direct Box stands out as a paragon of pristine audio performance for any musician. Whether you're in the studio or on stage, the m303s delivers ultraquiet, interference-free DI performance. This active, phantom-powered stereo DI box features true galvanic isolation, ensuring complete ESD and RFI protection for your signal. At the heart of its superior sound are the custom-wound Lundahl transformers, which offer exceptional low-end clarity and top-end detail. These transformers are magnetically shielded and designed with high-nickel cores to enhance low-frequency response.

Crafted for versatility, the m303s boasts ultralow distortion and noise with a wide frequency bandwidth from 20 Hz to 80 kHz, and a dynamic range that captures every nuance of your performance. Its dual-channel design supports any line-level source or instrument with passive pickups, delivering pro-quality audio through balanced XLR outputs. The m303s also features a switchable -13 dB input pad for handling hot signals and LED indicators for peak and power status.

Built in the USA, the m303s is encased in a durable extruded aluminum chassis with recessed connectors, making it a reliable choice for the road. Its rugged construction resists impacts and temperature variations, while high-quality gold contact toggle switches ensure long-lasting performance.

Key Features:

• Active stereo DI box with galvanic isolation, powered via 48V phantom power
• Custom-wound Lundahl transformers for optimal low-end clarity and top-end detail
• Ultrawide frequency bandwidth (20 Hz to 80 kHz) with a dynamic range of 124 dB
• 1-Mohm input impedance for versatile compatibility with line-level sources and passive pickups
• Durable extruded aluminum chassis with recessed connectors
• Per-channel 13dB Pad switches, Iso/Gnd switch, and LED indicators for peak and power status

Product specs

FAQs

What type of power source does the Grace Design m303s Active Stereo Isolated Direct Box require?

The Grace Design m303s requires 48V phantom power to operate, which is typically supplied by a mixing console or audio interface.

Does the Grace Design m303s Direct Box have a ground lift feature?

Yes, the Grace Design m303s includes a ground lift switch, which helps eliminate hum and noise caused by ground loops in audio setups.

How many channels does the Grace Design m303s Active Stereo Isolated Direct Box support?

The Grace Design m303s supports two channels, making it ideal for stereo applications or connecting two mono sources.

What are the input and output options on the Grace Design m303s Direct Box?

The Grace Design m303s features 2 x 1/4" inputs, 2 x XLR main outputs, and 2 x 1/4" thru outputs for flexible connectivity options in various audio setups.

Is the Grace Design m303s suitable for both live and studio applications?

Yes, the Grace Design m303s is designed for both live and studio environments, providing high-quality signal isolation and conversion for reliable performance in any setting.