This is the user manual for the Yamaha XM6150 6CH and XM4220 4CH power amplifiers, which introduces the main features and characteristics of the products
The Yamaha XM Series power amplifiers, including the XM6150 (6-channel) and XM4220 (4-channel), are designed for high power and superior audio performance. Key features include independent or stereo channel operation, bridging capabilities, balanced XLR and Euroblock inputs, and switchable high-pass filters (HPF) to filter frequencies below 80 Hz. The units also feature protection systems for DC detection, overheating, and muting, along with a variable-speed cooling fan.
| Channels | XM6150: 6CH; XM4220: 4CH |
|---|---|
| HPF Frequency | 80 Hz |
| Input Connectors | Balanced XLR and Euroblock |
| Output Connectors | 5-way binding post |
| Bridge Mode Max Input (XM6150) | 150W |
| Bridge Mode Max Input (XM4220) | 350W |
The speakers are automatically disconnected from the amplifier's outputs. This occurs if the amplifier overheats, detects DC voltage at the outputs, or during the initial power-on sequence.
It allows the input signal connected to channel A to be fed to all other channels instead of amplifying each channel's individual input.
Pin 1 is ground, pin 2 is hot (+), and pin 3 is cold (-).