(YAMX5) Yamaha A4115H PA Speaker Made in Japan (W911)

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SKU:: YAMX5 - 7911
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Description

Description

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The Yamaha A4115H is an early vintage self-powered (active) public address (PA) speaker system manufactured in Japan by Yamaha (Nippon Gakki) starting in the late 1970s or 1980s. It features a built-in 100-watt power amplifier, a 15-inch woofer, and a horn-loaded high-frequency driver inside a heavy front-loaded bass-reflex cabinet.

Key Specifications and Features

Design: 2-way, 2-driver loudspeaker system combining a front-loaded horn and a bass reflex enclosure.

Drivers: One large 380mm (15-inch) cone woofer and a custom high-frequency horn driver.

Amplification: Built-in active 100W amplifier with volume and tone/level controls on the control panel.

Frequency Response: 70 Hz to 15,000 Hz with a crossover frequency of 2,000 Hz.

Build and Weight: Extremely heavy-duty wooden cabinet finished in black leatherette, weighing roughly 58 kg (128–130 lbs) per unit.

Early Powered Design: “They were one of the first powered speakers that Yamaha made”, as noted by The Road Less Travelled.

Applications: Built for live sound reinforcement, stage monitoring, keyboards, or vocals, offering high output before lightweight modern class-D powered speakers became standard

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