AtlasIED AF140 140W Autotransformer

The AtlasIED AF140 Autotransformer is a rugged, professional-grade solution for matching loudspeaker loads to power amplifier outputs. With a single-coil design and multiple taps, it offers superior flexibility in pro audio and commercial sound systems. Engineered to handle up to 150 W per unit—and up to 300 W when two are connected in series—the AF140 ensures optimal impedance matching and power distribution across a broad frequency range.

Built with quality and reliability in mind, the AF140 features a robust frequency response from 30 Hz to 15 kHz and a durable metal housing. Whether for fixed installations or touring setups, this autotransformer delivers consistent audio performance and long-lasting durability, backed by AtlasIED’s industry-leading 60‑month warranty.

Key Features

• Single-coil autotransformer with multiple taps for precise impedance matching
• Handles up to 150 W per unit; can be series-wired for 300 W capacity
• Frequency response: 30 Hz – 15 kHz
• Ideal for professional and commercial sound applications
• Robust construction with AtlasIED 60‑month warranty

Technical Specifications

• Power Rating: 150 W
• Frequency Response: 30 Hz – 15 kHz
• Dimensions:
• Height: 4 1/8″
• Width: 3 7/16″
• Depth: 1 3/8″
• Shipping Weight: 7 lbs
• Warranty: 60 months from date of purchase

What’s Included in the Box

• 1 × AtlasIED AF140 Autotransformer
• Datasheet/documentation packet