The AtlasIED HT327 is a professional high-power line matching transformer designed for integrating 4-ohm and 8-ohm loudspeakers into 70.7V distributed audio systems. Featuring selectable 8W, 16W, and 32W primary power taps, the HT327 provides flexible speaker power matching for commercial paging, background music, and distributed sound installations.
Constructed with high-quality audio-grade laminations, the HT327 is engineered to deliver dependable audio performance with minimal signal loss. Its wide 30Hz–15kHz frequency response and maximum 0.6dB insertion loss help preserve audio clarity when connecting compatible low-impedance loudspeakers to constant-voltage speaker systems.
Designed for external mounting, the AtlasIED HT327 can be installed separately from the loudspeaker, providing additional flexibility for commercial audio installations where a transformer cannot be mounted inside the speaker enclosure.
With a maximum power rating of 32 watts, the HT327 is a practical solution for professional installers upgrading existing speaker systems or incorporating conventional low-impedance loudspeakers into 70.7V distributed audio networks.
Convert 70.7V Distributed Audio to 4Ω or 8Ω Speaker Loads
The AtlasIED HT327 allows compatible low-impedance speakers to operate as part of a 70.7V constant-voltage audio system.
Many commercial sound systems use 70.7V distribution to connect multiple speakers over extended cable runs. However, conventional loudspeakers are often designed for direct connection to low-impedance amplifier outputs.
The HT327 provides the impedance matching needed to integrate compatible 4-ohm or 8-ohm loudspeakers into these distributed audio installations.
This makes it useful when expanding existing commercial audio systems, replacing speakers, or adapting conventional loudspeakers for 70.7V operation.
Selectable 8W, 16W, and 32W Power Taps
The HT327 features three primary power taps that allow installers to select the appropriate transformer power level.
Available power taps include:
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8 watts
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16 watts
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32 watts
These settings help installers match the power delivered to a speaker with the requirements of the installation.
Lower tap settings may be appropriate for background music or paging applications, while higher settings provide additional power for compatible speakers requiring greater output.
The transformer supports a maximum rated power of 32 watts.
Proper tap selection is important for maintaining appropriate speaker output levels and keeping the total connected speaker load within the amplifier's rated capacity.
High-Fidelity Audio Performance
The AtlasIED HT327 is constructed with audio-grade laminations designed to support high-quality sound reproduction.
Its specified 30Hz–15kHz frequency response (±1dB) provides broad audio bandwidth for commercial music and paging applications.
With a maximum insertion loss of just 0.6dB, the HT327 minimizes signal loss through the transformer.
These characteristics make it suitable for distributed audio systems where clear speech reproduction and consistent music performance are important.
External Mounting for Installation Flexibility
Unlike transformers intended for installation inside speaker enclosures, the HT327 is designed for external mounting.
This allows installers to position the transformer separately from the loudspeaker when required by the system layout.
External mounting can be especially useful when working with existing speakers that do not have sufficient internal space for a transformer.
The HT327's compact construction also makes it suitable for integration into a variety of commercial audio installations.
Installers should ensure that the transformer is mounted securely and that electrical connections are properly protected for the installation environment.
AtlasIED HT327 Key Features
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High-power line matching transformer for commercial distributed audio
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Designed for 70.7V constant-voltage speaker systems
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Compatible with 4-ohm and 8-ohm loudspeaker loads
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32-watt maximum power rating
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Selectable 8W, 16W, and 32W primary taps
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Audio-grade laminations for reliable sound reproduction
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30Hz–15kHz frequency response (±1dB)
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0.6dB maximum insertion loss
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External mounting capability
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Suitable for commercial paging and background music systems
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Helps integrate conventional low-impedance speakers into 70V installations
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5-year manufacturer's warranty
AtlasIED HT327 Technical Specifications
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Specification
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Details
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Manufacturer
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AtlasIED
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Model
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HT327
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Product Type
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High-Power Line Matching Transformer
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Primary Voltage
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70.7V
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Power Rating
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32W
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Selectable Power Taps
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8W, 16W, 32W
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Secondary Impedance
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4Ω and 8Ω
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Frequency Response
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30Hz–15kHz
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Frequency Response Tolerance
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±1dB
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Maximum Insertion Loss
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0.6dB
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Construction
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Audio-Grade Laminations
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Mounting
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External
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Height
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3.25" (8.255 cm)
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Width
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2.5" (6.35 cm)
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Shipping Weight
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3.50 lbs (1.59 kg)
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Manufacturer Warranty
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60 Months (5 Years) from Date of Purchase
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Recommended Applications
Commercial 70V Speaker Systems: Integrates compatible 4-ohm and 8-ohm loudspeakers into distributed audio installations.
Paging and Announcement Systems: Provides transformer matching for commercial loudspeakers used in voice communication systems.
Background Music Systems: Supports low-impedance speaker integration in retail stores, restaurants, offices, and hospitality facilities.
Educational Facilities: Suitable for distributed audio installations in schools, classrooms, and institutional buildings.
Speaker System Upgrades: Allows installers to incorporate compatible existing loudspeakers into 70.7V systems.
Commercial Sound System Expansion: Provides additional flexibility when adding conventional speakers to existing constant-voltage audio networks.
Why Buy the AtlasIED HT327 from Audio Supply?
At Audio Supply, we specialize in professional audio equipment for commercial and distributed sound installations. The AtlasIED HT327 provides reliable 70.7V line matching with flexible power taps and low insertion loss, making it a practical solution for integrating low-impedance speakers into commercial audio systems.
