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100V Audio Transformers
100V audio transformers are specialized audio, matching and line transformers used in professional public address and distributed audio systems. They provide the required impedance matching between loudspeakers and PA amplifiers operating with 70V or 100V distributed audio lines.
These transformers are used for background music, voice announcements, paging, public address and commercial audio installations in facilities of different sizes.
100V Matching Transformers for Loudspeakers
One of the main applications of a 100V audio transformer is connecting a low-impedance loudspeaker to a 100V PA amplifier output.
Depending on the model, a transformer can be designed for 4, 8 or 16 ohm loudspeakers. The primary side connects to the 70V or 100V distributed audio line, while the secondary side provides the required impedance matching for the loudspeaker.
This makes it possible to use suitable low-impedance loudspeakers in installations based on a 100V distributed audio network.
100V Transformer Power Ratings
The rated power is one of the key parameters when selecting an audio transformer. Depending on the design and application, transformers are available for different power levels, from several watts to tens or hundreds of watts.
Common ratings include 5W, 10W, 20W, 30W, 40W, 50W, 75W and 100W. Some models also feature multiple power taps, allowing the installer to select the appropriate loudspeaker power.
The transformer power rating should be selected according to the actual load and the specifications of the loudspeaker.
70V and 100V Audio Transformers
Professional distributed audio systems may use 70V or 100V lines. The selected transformer must match the line voltage and the intended loudspeaker connection.
100V systems are widely used when multiple loudspeakers need to be installed over a large area while maintaining convenient audio distribution between different zones.
Applications of 100V Audio Transformers
100V transformers are used in:
- background music systems;
- voice announcement systems;
- public address systems;
- multi-zone commercial audio;
- retail stores and shopping centers;
- offices and business centers;
- restaurants and hotels;
- industrial and warehouse facilities;
- educational and public buildings;
- distributed loudspeaker systems.
How to Choose a 100V Audio Transformer
Before purchasing a transformer, consider the distributed line voltage, power rating, loudspeaker impedance and connection configuration.
Key parameters include:
- line voltage — 70V or 100V;
- transformer power rating;
- loudspeaker impedance — 4, 8 or 16 ohms;
- number of power taps;
- mounting method;
- dimensions;
- intended application;
- compatibility with the loudspeaker and PA amplifier.
A 100V audio transformer should not be confused with a mains power transformer. Distributed audio systems require dedicated audio transformers designed for the appropriate line voltage, impedance and power range.
Direct Importer of 100V Audio Transformers
CLUBTECH is a direct importer of this product range in Ukraine and supplies professional equipment for public address and distributed audio systems.
We sell products wholesale and retail and work with end customers, installers, professional companies and business clients.
We welcome new cooperation with customers, partners, online stores and dealers. We are open to long-term cooperation with companies involved in the sale, design, system integration, supply and installation of professional 100V audio systems.