Yamaha BR12 Passive Speaker - 12"

The Yamaha BR12 is a 12-inch, two-way passive loudspeaker from Yamaha's now-discontinued BR (Bass Reflex) Series. It was a step up in size and power from the BR10, offering a more robust low-end response and higher output, making it suitable for a wider range of applications in small to medium-sized venues. As a passive speaker, it requires an external power amplifier.

Similar to the BR10, the "BR" series emphasized Built Right, Better Response, and Best Reliability.

Here's a detailed look at its key features and specifications:

Transducers and Acoustics:

• LF Transducer: Features a 12-inch high-power woofer. The larger woofer provides more low-frequency extension and punch compared to the 10-inch BR10.

• HF Transducer: Equipped with a 1-inch titanium compression driver mounted in a 90 x 40 non-resonant horn. The titanium diaphragm ensures clear and detailed high-frequency reproduction.

• Bass-Reflex Design: The cabinet is ported to optimize low-frequency response, contributing to a fuller and more impactful sound.

• Constant Directivity Horn: The horn design helps to provide consistent sound dispersion over its specified coverage area.

• Frequency Range (-10dB): 60Hz - 20kHz. This indicates a solid full-range response, capable of handling vocals, instruments, and most music effectively.

Power Handling and Performance:

• Power Handling (RMS/Program/Peak):

  • Noise (RMS): 200 Watts

  • Program: 400 Watts

  • Peak: 800 WattsIt is crucial to match these ratings with an appropriately powered external amplifier for optimal performance and to prevent damage. An amplifier providing around 400 watts continuous power at 8 ohms per speaker would be a good match.

• Nominal Impedance: 8 Ohms, ensuring compatibility with a wide range of standard power amplifiers and easy parallel connection.

• Sensitivity (1W, 1m): 97 dB SPL. This is a good efficiency rating, meaning it can achieve significant volume levels with a moderate amount of amplifier power.

• Maximum SPL (Calculated Peak): 126 dB SPL. This indicates its capability to deliver substantial volume.

Enclosure and Durability:

• Construction: The cabinet is constructed from wood, using advanced woodworking techniques for precision and acoustic performance.

• Finish: Typically features a durable black carpeted finish, which is common for road-worthy passive speakers and provides good protection against scuffs and scratches.

• Protection: Equipped with steel corner protectors and a heavy-gauge, full-face perforated steel grille to protect the drivers from physical damage during transport and use.

• Handles: Features large, heavy-duty metal handles for improved portability and easier lifting.

Connectivity and Versatility:

• Input Connectors: Provides dual 1/4" phone jacks for input and parallel connection. This allows for simple daisy-chaining to connect multiple BR series speakers from a single amplifier output.

• Pole Socket: Includes a standard 1-3/8 inch (35 mm) pole socket on the bottom, allowing it to be easily mounted on speaker stands for optimal positioning and sound projection.

• Wedge Design: The trapezoidal cabinet shape also allows for it to be used as a floor monitor, providing a practical angle for performers on stage.

Applications:

• Main PA for Small to Medium Venues: Suitable for live bands, DJs, and various events where a robust full-range sound is needed.

• Stage Monitors: Its design makes it an effective and common choice for floor monitoring.

• Mobile DJ Setups: Provides clear and powerful sound for music playback, with a decent low-end for its size.

• Presentations and Public Address: Delivers clear and articulate speech.

• Rehearsal Studios: A durable and reliable option for band practice.

• Churches and Schools: Cost-effective sound reinforcement for various events and services.

The Yamaha BR12 was a popular and reliable choice for those seeking a durable, good-sounding passive loudspeaker with a balance of power and portability, particularly for budget-conscious users or those building out a basic PA system.