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GRACE DESIGN  |  SKU: 24923

m303S

D.I.

Active stereo DI with phantom power, custom Lundahl transformers, ultralow noise, wide bandwidth, 1 Megohm inputs, XLR outputs, rugged aluminum chassis.

$698.00 CAD
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Description

The Grace Design m303s is a premium phantom-powered active stereo DI box engineered for musicians and audio professionals who demand the cleanest signal path on stage or in the studio. With true galvanic isolation and dual custom-wound Lundahl transformers, it ensures ultraquiet, interference-free operation with outstanding low-end clarity and high-frequency detail.

Delivering an exceptionally wide frequency response (20 Hz " 80 kHz), ultralow distortion (0.007% at 50 Hz), and a 124 dB dynamic range, the m303s preserves every nuance of your performance. The Hi-Z 1/4" inputs accommodate both line-level sources and passive instruments, while thru outputs let you feed an amp or secondary destination. Balanced XLR outputs provide professional-grade connectivity, and a switchable -13 dB input pad manages hot signals.

Built in the USA with a durable extruded aluminum chassis and recessed connectors, the m303s is rugged enough for demanding touring environments while maintaining Grace Design's hallmark sonic transparency.

Features

Active stereo DI box for studio and live applications

Powered by 48V phantom power with galvanic isolation for ESD and RFI protection

Dual custom-wound Lundahl transformers with high-nickel cores for superior low-frequency response

Ultralow distortion and noise with wide bandwidth (20 Hz " 80 kHz)

Wide dynamic range with excellent low-end clarity and high-frequency detail

High-impedance 1/4" inputs support instruments and line-level sources

Dual 1/4" thru connectors to send signals to amps or alternate destinations

Balanced XLR outputs for professional-grade connectivity

Switchable -13 dB input pad for managing hot signals

Power and peak LED indicators for visual monitoring

Rugged extruded aluminum chassis with recessed connectors and gold-contact switches

Specifications

General Specifications

Product Name: m303s Active Stereo Direct Box

Brand Name: Grace Design

Model Number: M303S

UPC: 823821003230

Application: Studio and live performance

Chassis: Durable extruded aluminum with 1/4" wall

Country of Manufacture: USA

Warranty: Limited 5-Year Manufacturer Warranty

Technical Specifications

Type: Active DI (Direct Injection) Box

Channels: 2 (Stereo)

Circuitry: Solid-State

Transformer: Custom-wound Lundahl (magnetically shielded, high-nickel cores)

Frequency Response: 20 Hz to 80 kHz

Dynamic Range: 124 dB

Input Impedance: 1 MOhm

Total Harmonic Distortion (THD): 0.007% @ 50 Hz

Signal-to-Noise Ratio (SNR): -118 dBu (A-weighted)

Input Pad: -13 dB

Power Requirements: 48V Phantom Power

Ground Lift: No

Polarity Reverse: No

Low-Cut / High-Pass Filter: No

Connectivity

Inputs: 2x 1/4" TS unbalanced instrument inputs

Thru Outputs: 2x 1/4" TS unbalanced instrument thru (for amp routing)

Line Outputs: 2x XLR 3-pin balanced line outputs

Indicators: LED Indicators- Power, Peak

Dimensions & Weight

Product Dimensions (L - W - H): 7.3 - 5.2 - 2.9 inches

Weight: 1.61 lbs

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