Keep Reference I Series components firmly aligned in a standard 19-inch rack with the GRM2313 Rear Rack Ears. Purpose-built for 3U Furman equipment, this accessory provides the rear support needed for a cleaner, more stable installation without compromising access to the front panel or surrounding gear. For integrators and rack builders, the value is in the fit. A precise mounting match reduces installation friction, helps maintain consistent spacing, and supports a more polished final system. That matters in environments where equipment visibility, serviceability, and long-term stability all carry weight. Use GRM2313 when you want the rear of the chassis properly supported in a professional rack layout. It is a practical choice for home theater, studio, and custom AV systems where the rack is part of the finished installation, not just a storage frame. Durable construction and a clean profile help the system look intentional while keeping the component securely positioned.