This manual explains how to use YAMAHA BR10/BR12/BR15 BR12M/BR15M. It includes features, instructions, precautions, etc.
This manual provides safety precautions, installation instructions, and detailed specifications for Yamaha's BR series full‑range loudspeakers. It explains how to connect the speakers, recommended handling procedures, and the protective poly‑switch circuit built into each unit.
The document also lists the technical data for each model, including enclosure type, cone size, frequency response, power capacity, impedance, sensitivity, dimensions and weight, and provides contact information for Yamaha distributors worldwide.
| Enclosure | Bass reflex type |
|---|---|
| Cone Size | 10" (BR10), 12" (BR12), 15" (BR15) |
| Frequency Response | 65 Hz‑20 kHz (BR10), 60 Hz‑20 kHz (BR12/BR15) |
| Power Capacity (PGM) | 250 W (BR10), 300 W (BR12), 400 W (BR15) |
| Nominal Impedance | 8 Ω |
| Input Connectors | 2 × 1/4" phone jacks |
| Weight | 14.4 kg (BR10) – 21.3 kg (BR12M) |
Each speaker provides two 1/4" phone jack inputs for speaker cable connections.
The amplifier should be able to safely drive a minimum load of 8 Ω (or 4 Ω for some models) when speakers are paralleled.
Each loudspeaker includes a self‑resetting poly switch that protects the high‑frequency driver from excessive power.