Sennheiser NT 1-1 US Power Supply for ASA 1 Active Wireless Antenna Splitters

The Sennheiser 503873 is a US NT 1-1 power supply designed specifically for the ASA 1 active wireless antenna splitter and the L 2015 charger. It delivers a regulated current that remains consistent, so your wireless system performs exactly as it should.

Front-of-house engineers, broadcast technicians, worship leaders, and corporate AV teams will appreciate the confidence that comes from using the factory power source. By pairing the NT 1-1 with your ASA 1, you remove uncertainty and avoid the noise or dropouts that can appear when generic adapters are pressed into service.

The enclosure uses durable components that handle frequent setups, teardowns, and travel without complaint. At only 10.58 oz, it slips easily into a rack drawer or gig bag, adding minimal weight to a mobile rig while providing rock-solid power once you reach the venue.

Set up is simple: connect the NT 1-1 to a standard US outlet, attach the DC plug to your device, and enjoy uninterrupted operation throughout rehearsals, shows, or recording sessions. With Sennheiser’s own power supply in place, your ASA 1 and L 2015 can focus on the job of delivering clear, reliable wireless audio.

• Official power supply for the Sennheiser ASA 1 active antenna splitter
• Also supports the L 2015 charging station
• Regulated output maintains steady wireless performance
• Durable construction engineered for regular field use
• Lightweight at 10.58 oz for easy transport and installation