LD Systems is a professional audio brand of the Adam Hall Group, a German company based in Neu-Anspach, Hesse. The brand was launched in 2002 when Adam Hall — a longtime distributor and manufacturer of pro audio accessories and flight case hardware founded in 1975 — introduced its first in-house line of PA systems. Products are developed in Germany, with manufacturing split between facilities in Germany and the Far East.

The catalog spans portable and installed sound reinforcement, including PA loudspeakers, subwoofers, power amplifiers, wireless microphone and in-ear monitoring systems, powered column PAs, and compact mixing consoles. The MAUI series of column-array PA systems — introduced with the MAUI 28 in 2011 and expanded with models like the MAUI 11, MAUI 5, and MAUI P900 — is among the brand's most recognized lines, popular with mobile DJs, solo performers, and small-venue operators. Other notable series include the CURV 500 array system, the ICOA coaxial loudspeaker range, the STINGER passive PA line, and the DAVE subwoofer/satellite systems.

LD Systems gear is commonly specified for live events, houses of worship, corporate AV installations, and mobile entertainment applications. The brand is positioned as a value-oriented alternative in the pro audio market, emphasizing plug-and-play usability and a minimalist industrial design language alongside its German engineering roots.

LD Systems has 50 products cataloged on Equipboard, including PA Systems, Speakers & Accessories, and Monitors & Accessories. Their gear is featured by 1 artist, with the strongest followings in Rock and Metal. Notable users include Rob Chapman. Most LD Systems products fall in the mid-tier range — professional-grade without flagship pricing.