Grace Design m904b Monitor Controller

The Grace Design m904b is one of the most respected high-end monitor controllers ever produced, designed for professional recording studios, mastering facilities, broadcast environments, and post-production suites where absolute monitoring accuracy is essential. Renowned for its transparent signal path, precision volume control, and exceptional build quality, the m904b has long been considered a benchmark for critical listening applications.

This used Grace Design m904b offers a rare opportunity to acquire a mastering-grade monitor controller trusted by leading engineers worldwide. Built without compromise, the m904b was designed to sit at the heart of professional monitoring systems, ensuring that what you hear is exactly what is in the source material.

Whether used in stereo mastering rooms, high-end production studios, or immersive monitoring environments, the m904b delivers the transparency, reliability, and control demanded by the world’s most discerning audio professionals.

Mastering-Grade Monitoring Precision

Grace Design products have earned an exceptional reputation for sonic transparency, and the m904b is no exception.

• Ultra-Transparent Signal Path – Hear your mixes without unwanted coloration or distortion.
• Precision Volume Control – Accurate level management for critical listening and mastering applications.
• Reference-Quality Monitoring – Designed to preserve every detail of your audio signal.
• Professional Studio Reliability – Built for daily operation in demanding environments.

The Heart of a Professional Studio

The m904b was designed to become the central control hub of sophisticated monitoring systems.

• Multiple Source Selection – Easily switch between playback and monitoring sources.
• Multiple Speaker Outputs – Compare mixes across different monitor systems.
• Comprehensive Monitoring Control – Fast access to mute, dim, mono, and level functions.
• Remote Operation – Dedicated desktop controller for intuitive workflow.

The result is a monitoring environment that allows engineers to focus entirely on making accurate creative decisions.

Built for Critical Listening

The m904b excels in environments where monitoring accuracy directly affects the final result.

• Mastering Studios – Evaluate tonal balance, dynamics, and stereo imaging with confidence.
• Mixing Studios – Maintain consistent monitoring across long sessions.
• Broadcast Facilities – Reliable monitoring for professional content production.
• Post-Production – Precision monitoring for film, television, and media projects.

Legendary Grace Design Engineering

Grace Design has long been known for producing some of the finest monitoring and microphone preamplifier products in professional audio.

• Mastering-Grade Audio Performance – Designed with transparency as the primary goal.
• Premium Analog Electronics – Exceptional signal integrity throughout.
• Precision Manufacturing – Built to the highest professional standards.
• Long-Term Reliability – Trusted by studios worldwide for mission-critical applications.

Features

• High-end professional monitor controller
• Reference-grade audio transparency
• Precision volume control system
• Multiple monitor and source selection
• Dedicated remote control unit
• Mastering and mixing studio applications
• Comprehensive monitoring management functions
• Professional balanced audio connectivity
• Made in the USA

Applications

• Mastering Studios
• Professional Mixing Rooms
• Dolby Atmos & Immersive Audio Monitoring
• Broadcast Facilities
• Post-Production Suites
• Critical Listening Environments

Technical Specifications

• Model: Grace Design m904b
• Type: Professional Monitor Controller
• Signal Path: High-resolution analog monitoring architecture
• Functions: Monitor control, source selection, speaker management, mono, dim, mute
• Connectivity: Professional balanced analog I/O
• Control: Dedicated remote control unit
• Applications: Mixing, mastering, broadcast, post-production
• Manufacturing: Grace Design, USA
• Condition: Used

Why Choose the Grace Design m904b?

In professional audio, every decision is only as good as the monitoring chain behind it. The Grace Design m904b was created to remove the monitor controller from the equation, allowing engineers to hear their work with exceptional accuracy and confidence.

Its combination of mastering-grade transparency, precision level control, flexible monitoring options, and legendary Grace Design build quality has made it a reference monitor controller in some of the world’s finest studios.

For engineers seeking uncompromising monitoring performance, the Grace Design m904b (Used) remains one of the most desirable monitor control systems ever produced.