LINE Transformer-SHOW (Horn Driver Unit) Code: 17738062

A SHOW Driver Unit with a built-in line transformer (like the SHOW MT-60 or MT-100) lets you connect long speaker lines without losing sound quality. Inside the unit’s protective aluminum or plastic cover, the line transformer changes the voltage of your audio signal to make it travel far distances cleanly.

Key Parts Inside

• Transformer Coil:This converts high-voltage/low-current signals from the amplifier to the proper level for the driver.
• Power Taps:The transformer has different wire terminals for different power settings (for example, 20W, 40W, 60W on the MT-60). This lets you adjust how loud the horn will play.

Voice Coil: A coil of wire wrapped around a metal base. It turns the electrical signal into physical sound

How to Wire It

1. Find the Common (COM) Terminal:This is usually a black wire or a terminal marked negative (-). Connect this to the COM wire of your amplifier.
2. Choose the Wattage Tap:The transformer will have color-coded wires (or labeled terminals) for specific wattages. Connect the amplifier’s positive (+) wire to the wattage you want to use.
3. Impedance Matching:Transformers make sure the resistance (measured in ohms, Ω) matches the amplifier. This keeps your equipment from overloading.

Why the Transformer is Needed

If you connect an ordinary 16ohm speaker wire across a long distance, the sound gets weak and unclear. The transformer boosts the voltage. It makes the sound loud and sharp for outdoor public address (PA) systems.