AtlasIED Ht-87 Impedance Matching Transformer

Optimize audio distribution for security, surveillance and monitoring systems with the AtlasIED HT-87 impedance matching transformer. Designed for commercial paging and critical audio applications, this AtlasIED transformer delivers low-loss, full-range performance—preserving speech clarity and music fidelity across distributed 70.7V lines. The HT-87 features primary taps at 1, 2, 4 and 8 watts and supports 4Ω and 8Ω secondary loads, making it simple to zone speakers and balance coverage in lobbies, command centers, and perimeter monitoring areas. With audio-grade laminations and a measured frequency response of 50Hz–15kHz (±1dB), the unit keeps announcements intelligible and monitoring feeds accurate while keeping insertion loss under 1.0 dB. Compact, open-frame construction eases rack or enclosure mounting and the 8VA rating ensures dependable operation in continuous-use environments. NDAA-compliant and backed by a 60-month limited warranty, the HT-87 is ideal for installers specifying reliable audio transformers for security, surveillance, and public address projects. Specify the AtlasIED HT-87 for clean, consistent audio across your 70.7V paging and monitoring system—contact your distributor to order or request technical support.

• Delivers clear, full-range audio across 70.7V systems to maintain intelligible paging and background music in security and surveillance environments
• Low insertion loss (≤1.0 dB) preserves signal fidelity so announcements and monitoring feeds stay accurate and reliable
• Multiple primary taps (1, 2, 4, 8 W) enable easy power zoning for flexible speaker layouts and efficient system design
• 4Ω/8Ω secondary options simplify integration with a variety of speaker loads and legacy equipment
• Durable open-frame construction with a 60-month limited warranty and NDAA compliance supports long-term, mission-critical installations