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Grace Design m303 DI  From Grace

Truly isolated active direct box.

Grace Design

$299.00

No Sales Tax in OH!
No Sales Tax in 45 States. Learn More.

Retail:  $330.00

"Experience the Difference"

Sound Pure's 3-Year Warranty

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In addition to the standard included manufacturer warranty, virtually all new products carry our exclusive, industry-leading, absolutely free, Sound Pure 3-Year Warranty, which includes PARTS & LABOR. This high-value perk is our way of providing the ultimate in added value to enhance the unique personal touch our small, dedicated team contributes to each purchase.
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Free Lifetime Technical Support!
Our small team of dedicated experts is here to help the original purchaser for the lifetime of the product. Why? Because we care about building real relationships with our customers for life and stand behind every product we sell.

No Sales Tax collected in OH.

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Sales Tax
Sales tax is only collected in the following states: CA, FL, NC, SC, TN and VA. If your state is not listed, sales tax will not be collected on your order.
Contact us for up-to-date delivery estimate.
Payments as low as $26/mo.

Manufacturer's Description from Grace

The all new Grace Design m303 is an active, truly-isolated direct box, delivering next-generation audio performance for
all live stage and studio applications. Our advanced power supply design provides incredible headroom and dynamic
range. A custom-wound Lundahl transformer outputs amazing low-end clarity and high frequency detail. All of this
performance is packaged in a beautiful and rugged 1⁄4” extruded aluminum chassis. Don’t let the elegant exterior fool
you, this thing is built.


Features

  • Phantom powered active DI with full galvanic isolation.
  • Custom wound Lundahl transformer, magnetically shielded with a high nickel core
  • Ultra-low distortion (below -100dB at 1kHz, below -80dB at 50Hz)
  • Ultra-low noise (-118dBu, A weighting)
  • Ultra-wide bandwidth 20-80kHz
  • Wide dynamic range (124dB)
  • Excellent low frequency headroom THD+N @50Hz <-80dB (0.007%)
  • 1M Ohm input impedance works with any line or pickup signal source
  • Peak indicator LED - 3dB before clipping
  • Power indicator LED
  • Efficient design only draws 4mA of phantom power current
  • Through signal connector
  • Fully ESD and RFI protected
  • Input pad (13dB) for high level signals
  • High-quality gold contact toggle switches
  • Very rugged 1/4" wall extruded aluminum chassis, recessed connectors


m303 advantages over many other DI products

  • Signature Grace Design transparent, musical audio performance
  • Active design with true galvanic isolation
  • World class Lundahl transformer
  • Incredibly low distortion and noise with wide dynamic range
  • Deep, rock-solid bass response
  • 1M ohm input impedance
  • Durable, designed for years of reliability
  • Backed by a 5 year warranty
  • Made in the USA
Grace Design

About Manufacturer

Audio engineer/designer Michael Grace originally began building single order custom audio products for a small, devout following of recording engineers and artists is 1990. Before long, the word had spread about Michael's custom microphone preamplifier designs, which were said to outperform anything else that was commercially available. Based on an increasing demand for his mic preamp design, in 1994 Grace Design was founded and began production of the original 801 mic preamp. Not only did the 801 provide a new level of audio performance and functionality, it helped to establish outboard microphone preamplifiers and direct-to-tape recording as a new standard in professional audio production. Over the years, Grace Design has maintained a steady, methodical pace to developing new products and technologies. Our product line has evolved into a definitive collection of microphone preamplifier configurations and other unique professional audio products. While the professional audio industry is inundated with products seemingly designed for obsolescence, we pride ourselves on providing audio professionals with the finest tools imaginable. Located in Boulder, Colorado, Grace Design continues its mission into the new millennium. As our company grows, we continually strive to improve our production methods to make sure theya re exact, efficient and environmentally sound. Their employees are treated like family and they strive to improve our production mehods to make sure they are exact, efficient and environmentally sound. Our employees are treated like our family and we strive to maintain our business relationships as friendships. And above all, we remain driven by the original passion that founded the company- the love of music.

Specifications

  

m303 Specifications


Gain
Pad Off, 13.6k Ohm load -6dB
Pad On, 13.6k Ohm load -19dB
Frequency Response
± 0.2dB (50Ω source, 13.6k load) 82Hz-27kHz
± 3dB (50Ω source, 13.6k load) 20Hz-80kHz
THD+N 20Hz-20kHz BW
-10dBu out, 1kHz -102.8dB (0.00072%)
-10dBu out, 50Hz -83dB (0.0073%)
-10dBu out, 25Hz (10Hz-20kHz BW) -72dB (0.023%)
High Pass Filter
2nd Order, Bessel -3dB 20Hz
Intermodulation Distortion -10dBu Out
SMPTE/DIN 1:1 (50Hz, 7kHz) -106dB (0.0005%)
SMPTE/DIN 4:1 (50Hz, 7kHz) -99dB (0.0010%)
Noise – Output Level 20Hz-20kHz
Pad Off, 50Ω source -116.2dBu
Pad Off, Input disconnected (equivalent to 330pF source) -112.3dBu
Pad On, 50Ω source -113.1dBu
Pad On, Input disconnected (equivalent to 330pF source) -113d.0Bu
Noise – Output Level A-weighted
Pad Off, 50Ω source -118.6dBu
Pad Off, Input disconnected (equivalent to 330pF source) -114.9dBu
Pad On, 50Ω source -115.5dBu
Pad On, Input disconnected (equivalent to 330pF source) -115.2dBu
Maximum Input Level (0.1% THD+N)  
1kHz, Pad Off 14dBu
1kHz, Pad On
Maximum Output Level (0.1% THD+N)  
Balanced, 1kHz, 13.6kΩ Load 8dBu
Balanced, 1kHz, 3.65kΩ Load
Impedance  
Input Pad Off 1MΩ
Input Pad On 115kΩ
Output
Power Supply  
48V Phantom Power, IEC 61938
Weight and Dimensions
1.05lb, (0.48kg) - 5.30”L x 3.19”W x 1.73”H (134mmL x 81mmW x 44mmH)