Sennheiser 509455

Overview

The Sennheiser 509455 is a dual-bay charger designed for the Evolution Wireless Digital EW-DX series, enabling simultaneous charging of two transmitters such as the EW-DX SK bodypack or EW-DX SKM handheld, each powered by a BA 70 battery. It supports flexible power options including Power over Ethernet (PoE) and 12 V DC input, making it adaptable to various professional audio environments. With fast charging that fully replenishes batteries in about 3.5 hours, this charger ensures your wireless transmitters are ready when you need them.

Key features

• Dual-bay design allows charging of two EW-DX transmitters at the same time, improving workflow efficiency.
• Supports both PoE and 12 V DC power inputs, providing versatile installation options for different setups.
• Network-enabled with an RJ-45 port that uses Media Control Protocol for remote monitoring and control through Sennheiser Control Cockpit or compatible third-party software.
• Clear charge-status LEDs offer immediate visual feedback on battery levels and charging progress.
• Fast charging capability reduces downtime by fully recharging batteries in approximately 3.5 hours.
• Compact and efficient design helps maintain an organized workspace without sacrificing functionality.

Key specs

• Compatibility: EW-DX SK, SKM, SKM-S transmitters with BA 70 batteries
• Power input: Power over Ethernet (PoE) or 12 V DC
• Charging bays: 2 simultaneous transmitter charging slots
• Charging time: Approximately 3.5 hours for full battery recharge
• Network interface: RJ-45 port supporting Media Control Protocol
• Indicators: Charge-status LEDs for each bay

Connectivity and compatibility

This charger integrates seamlessly into professional audio setups thanks to its network capabilities and flexible power options. The RJ-45 port enables remote management, which is particularly valuable in complex environments such as corporate events, educational facilities, or live performances where multiple devices require monitoring. Its compatibility with the EW-DX series transmitters ensures it fits well within Sennheiser’s wireless ecosystem.

Ideal uses and environments

The CHG 70N is well suited to professional audio technicians and event managers who need reliable, fast charging for multiple wireless transmitters. It works effectively in settings where remote device management is essential, such as conference centers, theaters, and broadcast studios. Its compact footprint and flexible power options make it a practical choice for both fixed installations and mobile setups.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

Learn more

Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

Learn more

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

Learn more