Grace Design M303
Active Fully-Isolated DI Box
The new Grace Design m303 is an active, galvanically isolated DI box, delivering next-generation audio performance for all stage and studio applications. The advanced power supply design provides incredible headroom and dynamic range, while the custom-wound Lundahl transformer outputs amazing low-end clarity and high frequency detail. All of this performance is packaged in beautiful and rugged 1/4" extruded aluminium chassis. Don't let the elegant exterior fool you, this thing is built.
The m303's sonic clarity and detail make it a FOH engineer's best friend and keep large live productions sounding great. Any source on stage will benefit from the transparency and open musicality of the m303, from keys to passive bass to acoustic guitar. And the renowned Grace Design reliability will keep venues and stage crews happy for not having to throw another DI in the 'dead' bin.
For musicians, engineers and producers who want more flexibilty out of their DI recording duties, the m303 will make any direct instrument track sound detailed and alive, with robust low-end clarity. This allows for better downstream processing (saturation, compression, EQ), which results in better recordings and final mixes.
Grace Design wanted the very best transformer in the m303. It had to be ultra-low noise and distortion and it had to sound great with killer low end. So the answer was clear: Lundahl. They are a world leading manufacturer of high performance transformers for pro audio applications and the very best choice for who could meet the standards for what was needed in the m303.
Product Overview
Product Specifications
Product Videos
Shipping Information
We provide free shipping on most items and Next Day delivery on all orders completed before 12pm (noon!) so you don’t have to pay extra or wait long to start enjoying your new equipment.
We use DPD to ship the majority of our orders within the UK. International locations will vary, learn more here.
Product Support
We work with some of the world’s leading audio manufacturers to provide everything from the trusted studio classics to modern, innovative technologies that help you to push sonic boundaries. We pride ourselves on offering the best support both before and after sale. If you have any questions, please get in touch.
GRACE-M303
Grace Design M303
New Gear FAQs
Are all new items in stock?
With such a wide range of products we cant stock everything at all times.
The product page will display if an item is in stock. If it is marked as pre-order, you can place your order as normal and await its arrival into stock.
Please get in touch for an estimated shipping date. This may vary depending on stocking level with the manufacturer and/or distributor.
What warranty do you get with new gear?
Minimum 1 year manufacturer's warranty. Some manufacturers may also extend this (please see their respective websites for more information).
Can I part exchange used gear towards new gear?
Of course! Whether youre just looking to sell unused gear or looking to upgrade, get in touch here to discuss.
Can I test the equipment before I buy it?
We have a demo room at MNPA HQ where you are welcome to come and try out the equipment we have in stock. We’re not a shop and open to the general public so please get in touch via our Contact Form to book an appointment before coming to see us.