Grace Design m303
MPN #m303
Active direct box with galvanic isolation, custom-wound transformer, ultra-low noise, wide dynamic range, 1M ohm input impedance, rugged aluminum chassis, LED indicators
The Grace Design m303 is a premium active direct box (DI) built for both live stage and studio use, offering exceptional audio clarity and performance. Its standout feature is a custom-wound Lundahl transformer that ensures superb low-end clarity and high-frequency detail, delivering a pristine, natural sound. The m303 is designed with full galvanic isolation, meaning it effectively eliminates any unwanted noise or interference, making it perfect for critical audio applications. Housed in a robust extruded aluminum chassis, this DI box is built to withstand the rigors of professional use, while its sleek design enhances its visual appeal.
Key features include ultra-low distortion and noise, wide dynamic range, and a 1M Ohm input impedance, making it compatible with a wide variety of line or pickup sources. The m303 is powered via phantom power and includes a peak indicator LED to alert users when the signal is approaching clipping. Its efficient design draws minimal power and offers excellent protection against electrostatic discharge (ESD) and radio frequency interference (RFI), ensuring consistent performance in any environment. Trusted for its transparent and musical audio quality, the m303 is a top choice for professionals seeking durability and high-fidelity sound.
Features
Phantom-powered DI with full galvanic isolation and Lundahl transformerUltra-low distortionWide bandwidth1M Ohm input impedance for line or pickup signalsPeak and power indicator LEDs13dB input pad for high-level signalsESD and RFI protectionRugged aluminum chassis with recessed connectorsLow power consumption
Specifications
General Specifications
Active, phantom-powered direct box (DI) with full galvanic isolationCustom-wound Lundahl transformer with high nickel core, magnetically shieldedUltra-low distortion: below -100dB at 1kHz, below -80dB at 50HzUltra-low noise: -118dBu (A weighting)Ultra-wide bandwidth: 20Hz - 80kHzDynamic range: 124dBInput impedance: 1M Ohm (suitable for line or pickup signals)Peak indicator LED (3dB before clipping)Power indicator LEDPhantom power consumption: 4mAInput pad: 13dB for high-level signalsFully protected against electrostatic discharge (ESD) and radio frequency interference (RFI)Rugged ΒΌ" extruded aluminum chassis with recessed connectorsHigh-quality gold contact toggle switches
Performance
Low frequency headroom: THD+N @ 50Hz < -80dB (0.007%)Transparent, musical audio performanceDeep, rock-solid bass response
Physical Specifications
Durable design for reliabilityMade in the USA
Image shows multiple for display only. Sold as 1 unit.
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