Gear article

Yamaha Stagepas 100BTR MKII Battery Powered Portable PA System

The Yamaha Stagepas 100BTR MKII is a compact, battery-powered portable PA system featuring a 100W Class-D amplifier and a coaxial speaker design. It is designed for performers and presenters who require a cable-free audio solution with integrated mixing, Bluetooth streaming, and USB connectivity.

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Overview and History

The Yamaha Stagepas 100BTR MKII represents a specific evolution in Yamaha's portable audio range, focusing on extreme mobility and ease of use. While the Stagepas series traditionally included larger stereo mixer-plus-speaker configurations, the 100BTR MKII is a self-contained, all-in-one unit. It is specifically targeted at solo performers, educators, and public speakers who operate in environments where mains power is unavailable or inconvenient to access.

Technical Features and Operation

At the core of the system is a 100W Class-D power amplifier driving a coaxial speaker. The coaxial design ensures that high and low frequencies originate from the same point, improving phase coherence and maintaining clarity at higher volumes.

The unit features a built-in three-channel mixer located on the front panel for easy access. This includes: * Level controls for each channel. * A two-band equaliser (EQ) for tonal shaping. * Inputs for microphones, instruments, and line-level sources.

Connectivity is further enhanced by integrated Bluetooth for wireless audio streaming and a USB audio port for connecting computers or mobile devices, facilitating online sessions or digital playback.

Power and Portability

The 'BTR' designation refers to its internal rechargeable lithium-ion battery. This battery provides up to six hours of continuous operation, allowing for pop-up events and outdoor performances without the need for power generators or long extension leads. Its compact chassis is designed for easy transport between rooms or venues, fitting into the 'ultra-portable' category of PA equipment.

Sound Character and Suitability

The sound character is defined by the 100W amplifier, which prioritises balance and clarity over raw volume. The coaxial driver setup helps the audio remain intelligible even as the volume increases, making it particularly effective for speech and acoustic music. It is best suited for: * Busking and outdoor performances. * Small presentations and educational workshops. * Pop-up events in unconventional spaces. * Users requiring a secondary monitor or a simple practice amp with streaming capabilities.

Market Comparisons

When compared to larger column-based systems such as the LD Systems MAUI series (like the 28 G3 or 44 G2) or the RCF EVOX J11, the Stagepas 100BTR MKII offers significantly higher portability but less low-end reinforcement. Unlike the Electro-Voice Evolve 30M or Turbosound iNSPIRE iP300, which are designed to fill larger halls with wider dispersion, the Stagepas is a point-source solution. Within the budget-friendly category, it competes with systems like the SubZero SZPA-612 or P810, though the Yamaha differentiates itself through its specific coaxial design and compact lithium-ion integration.

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Frequently asked questions

How long does the battery last on the Stagepas 100BTR MKII?
The integrated rechargeable lithium-ion battery provides up to six hours of operation on a single charge.
What is the power output of this PA system?
The unit features a 100W Class-D amplifier, designed to provide clear audio even at higher volume levels.
What kind of speaker design does it use?
It uses a coaxial speaker design, which helps maintain balance and clarity by aligning the high and low-frequency drivers.
How many channels does the built-in mixer have?
The system includes a three-channel mixer that allows for the connection of microphones, instruments, and line-level sources.
Does the Stagepas 100BTR MKII support Bluetooth?
Yes, it features Bluetooth connectivity for wireless audio streaming from mobile devices or tablets.
Can I connect this system to a computer?
Yes, it includes USB audio connectivity, which allows you to connect the unit to a computer or mobile device for playback or online sessions.
Does it have EQ controls?
The front panel includes a two-band equaliser (EQ) for adjusting the tonal balance of the output.
Is this system suitable for outdoor use?
Yes, its battery-powered nature and compact size make it ideal for outdoor busking, pop-up events, and areas without power sockets.
What makes the MKII different from standard Stagepas models?
The 100BTR MKII is a compact, all-in-one battery-operated unit, whereas many other Stagepas models are larger, multi-component stereo systems.
What inputs are available on the mixer?
The mixer supports a variety of inputs including microphones (XLR/TRS), instruments (Hi-Z/Line), and digital sources via Bluetooth or USB.
What is the typical price for this unit?
The typical price for the Yamaha Stagepas 100BTR MKII is approximately £317.
Who is the primary target audience for this PA?
It is designed specifically for performers, presenters, and educators who need a portable and easy-to-use sound solution.