Electro-Voice EVF-1122D, EVF-2121S, EVH-1152S Using Tie Plates as Main Load-Bearing Suspension

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6.0 Rigging-Strength Ratings and Safety Factors (cont’)

6.51 Using Tie Plates as Main Load-Bearing Suspension

Horizontal clusters are attached to the structure with the tie plates located on the rigging plates of the HRK kits. The tie plates have six holes that will accept a 5/8-inch shackle or similar connector. All main suspension lines that carry the cluster’s load should be tied to these tie plates. Both the front and rear tie plates on the top boxes must be connected to the building structure when the cluster is installed using a moderate trim angle as shown in Figure 31.

For purposes of stabilization, especially with the two-over-two cluster, additional stabilization points can be helpful. These stabilization points can be used as eyebolts on the enclosures at the rear of the cluster. Figure 31 shows typical stabilization points.

Max. Cluster Weight

634 lb (288 kg)

Max. Cluster Weight

980 lb (445 kg)

Figure 31a:

Figure 31b:

Use of tie plates in the suspension of a two-over-

Use of tie plates in the suspension of a three-

two cluster using HRK rigging kits

over-three cluster using HRK rigging kits

Electro-Voice EVF/EVH User Manual

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Contents Page Table of Contents Rigging-Safety Warning Table of Contents cont’Introduction EVF-1122S/96 example Introduction cont’End View Front View Side View 143.0 lb 64.9 kg 145.5 lb 66.1 kg Dimension Key suspension point dimensions as shown in figure aboveEVH Horn-Loaded Series Finishes and Colors AvailableEVF Front-Loaded Series Tool List Accessories for EVF and EVH SystemsDirectivity Break Frequency Defined General Aiming and Placement GuidelinesDesigning an EVF/EVH Cluster Basic Clustering Guidelines Designing an EVF/EVH Cluster cont’Coverage-Uniformity Target Multiple-Source Interference in Clusters See text for more details NormalizedReducing Multiple-Source Interference EVF Full-Range Designing an EVF/EVH Cluster cont’ Passive/Biamp Crossover Configuration Preparing EVF and EVH Systems for InstallationRecommended Preflight Procedures Rotation of High-Frequency Waveguides EVF systems Preparing EVF and EVH Systems for Installation cont’Digital Signal Processing Full-Range Systems in Passive Mode Preparing EVF and EVH Systems for Installation cont’ VRK-1 or HRK-1 connection EVF and EVH Rigging SystemIntroduction Flying EV-Innovation EV-I Loudspeaker System VRK-1 or HRK-1 connection VRK-2 or HRK-2 connectionVRK-3 rigging kit with parts identified EVF and EVH Rigging System cont’VRK-1 rigging kit with parts identified VRK-2 rigging kit with parts identifiedHRK-3 rigging kit with parts identified HRK-1 rigging kit with parts identifiedHRK-2 rigging kit with parts identified EV-I Rigging Primer Important Details that Apply to the VRK and HRK Rigging KitsEVF and EVH Rigging System cont’ Eyebolt Installation All-Eyebolt Clusters Hardware not shown, using aTwo-system horizontal cluster using VRK Kits and Vertically Rigged Clusters Systems, using a moderate trim angleSystems, using an extreme trim angle HRK Kits and Horizontally Rigged Clusters EVF Full-Range Six-enclosure horizontal hang of three systems above Assembly Instructions for VRK and HRK kits Short in front Toward grille Working Load Limit and Safety-Factor Definitions Rigging-Strength Ratings and Safety FactorsStructural Rating Overview Rigging-Strength Ratings and Safety Factors cont’All-Eyebolt Structural Ratings Limits for ALL-EYEBOLT Clusters onlyWLL for M10 eyebolts in the EVI-M10K eyebolt kit Working Load Limits for EyeboltsLeft-to-Right All-Eyebolt Cluster Angles Suspension-Line AnglesVRK Rigging Structural Ratings for Vertical Clusters Limits for Vertical Clusters only WLL for M10 eyebolts in the EVI-M10K eyebolt kit Left-to-Right Vertical Cluster Angles Maximum load and maximum height for horizontal clusters HRK Rigging Structural Ratings for Horizontal ClustersTwo cluster using HRK rigging kits Using Tie Plates as Main Load-Bearing SuspensionSuspension-Line Angles for HRK Kits Symmetry for Horizontal Clusters using HRK Kits Left-to-Right Horizontal Cluster Angles Inner Connection PointsRatings for Outdoor Applications with Wind Loading Electro-Voice Structural-Analysis ProceduresRigging Inspections and Precautions Rigging Web sites ReferencesRigging printed Mechanical Engineering printedPage Page Electro-Voice
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EVH-1152S, EVF-1152S, EVF-1122S, EVF-1122D, EVF-1152D specifications

Electro-Voice is renowned for its high-quality audio solutions, and the EVF series embodies this commitment. The EVF-2121S, EVF-1121S, EVF-1181S, EVF-1151S, and EVF-2151D are a collection of loudspeakers designed for a variety of professional audio applications, each with its distinctive features and capabilities that cater to different sound reinforcement needs.

The EVF-2121S is a dual-12-inch full-range speaker that combines exceptional power handling with a wide frequency response. It utilizes a coaxial driver arrangement, providing even sound distribution and a cohesive audio experience. This model is ideal for medium to large venues, offering a robust SPL (sound pressure level) output and clear reproduction of vocals and instruments.

In contrast, the EVF-1121S features a single 12-inch driver, delivering precise, high-impact sound suitable for smaller spaces. Its design emphasizes clarity and detail, making it perfect for live sound applications. The compact and lightweight design also ensures ease of transport and installation, appealing to mobile sound reinforcement professionals.

The EVF-1181S is a dedicated subwoofer that amplifies low frequencies, featuring an 18-inch woofer for deep, powerful bass response. Its extended low-frequency output enhances the overall sound experience, making it an ideal choice for high-energy music events and professional club environments. Designed with rugged construction and efficient power handling, the EVF-1181S is built to withstand demanding conditions while delivering reliable performance.

The EVF-1151S combines a 15-inch woofer with an advanced high-frequency driver for a full-range sound that works well in theatres, concert halls, and corporate events. The speaker ensures clear mid and high frequencies, maintaining vocal intelligibility even in challenging acoustic environments.

Lastly, the EVF-2151D is a dual 15-inch subwoofer that enhances overall system performance with its ability to produce deep bass. Its compact enclosure design allows for seamless integration into various sound setups, ensuring it can meet the needs of both portable and installed sound systems.

All models in the EVF series incorporate advanced technologies, including proprietary transducers and custom-engineered waveguides, which contribute to their impressive performance. With features like durable enclosures and efficient power handling, these loudspeakers are engineered to provide reliable sound reinforcement for both live and recorded applications. Whether it’s a concert, event, or installation project, the Electro-Voice EVF series stands out for its versatility and audio excellence.
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