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UPA-1P Meyer Sound

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Page last updated Aug 10, 2025

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Description

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The UPA-1P Meyer Sound sets the stage for exceptional live audio experiences. As a high-performance loudspeaker, it’s tailored for professionals who need reliable sound clarity and robust output. This self-powered speaker is part of Meyer Sound's acclaimed lineup, designed to deliver consistent audio quality across various venues, from intimate clubs to large theaters.

The UPA-1P features an integrated amplifier and advanced signal processing, ensuring seamless operation and reduced setup time. With its precise, constant directivity horn, this speaker offers a controlled coverage pattern that enhances sound consistency throughout the listening area. The proprietary Meyer Sound transducers are engineered for efficiency and durability, providing impressive output with minimal distortion.

Whether used as a main speaker or a stage monitor, the UPA-1P delivers performance you can trust. Its compact design makes it easy to transport and integrate into any sound system, while its rugged construction withstands the rigors of touring life. The speaker's versatility and reliability make it a popular choice among sound engineers and musicians alike.

Key Features:

Self-powered loudspeaker with built-in amplifier
Advanced signal processing for optimal sound performance
Precise constant directivity horn for controlled coverage
Proprietary Meyer Sound transducers for high efficiency
Compact and rugged design suitable for various applications
Ideal for use as a main speaker or stage monitor

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about UPA-1P Meyer Sound.

Build quality

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The UPA-1P speakers have been restored with new paint, powder coating, and internally reinforced flanges using a 22mm multiplex plate for added durability.
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Setup and maintenance

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Owners report using Adam Hall SM702 flanges, noting a slight off-center placement due to existing holes; recommend re-centering for optimal balance.
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Meyer still sells the ST-212 and MS-1401m as whole drivers; individual diaphragm replacements aren't available from them.
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Contacting the Meyer service department may help with parts, though sales to non-dealers might be restricted.
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Mods and upgrades

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Changing the system to NL4 connections, adding internal foam behind grilles, and using K&M wind-up poles with ringlock are popular modifications for improved aesthetics and stability.
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Consider sourcing replacement diaphragms online, with owners suggesting taking precise measurements to ensure compatibility.
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Features and functionality

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The UPA series offers switchable crossover connectors labeled "HF Flat" and "16kpk," impacting the high-frequency response based on configuration.
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Weather protection includes driver and wood treatments, stainless steel hardware, and a treated grille with foam under mesh for enhanced resistance to elements.
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Use cases and applications

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In a 150-capacity room, optimal setup includes 4 UPAs, each paired with a USW sub and UPJ for lip fill, providing excellent coverage and sound quality.
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User experience

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Owners appreciate the UPA series for its longevity and reliability, with units from the late 80s still performing well after restoration and consistent use.
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Standard UPA-1P boxes can endure some weather with a rain hood but are not suitable for prolonged exposure without factory-applied weather protection.
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Owners seeking parts often mention the need for updated grilles with angle brackets, indicating these are common replacement parts.
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