The Yamaha MX-50 is a stereo power amplifier featuring a Hyperbolic Conversion Class A Circuit, which allows for pure Class A operation without switching to non-linear Class AB. The manual details the features, including high dynamic power and LED power level meters, as well as overload protection circuitry.
| Minimum RMS Output Power Per Channel (8 ohms) | 125W |
|---|---|
| Minimum RMS Output Power Per Channel (6 ohms) | 150W |
| Minimum RMS Output Power Per Channel (4 ohms) | 290W |
| Minimum RMS Output Power Per Channel (2 ohms) | 390W |
| Signal to Noise Ratio (IHF-A-Network) | 123dB |
| Frequency Response | 10Hz ~ 60kHz |
| Power Consumption | 650W |
| Dimensions (W x H x D) | 435 x 165 x 420mm |
It is a circuitry developed by Yamaha that eliminates the drawback of previous Class A amplifiers by allowing pure Class A operation constantly without switching or cut-off.
Observe the '+' and '-' markings on the backs of the speakers and the MX-50, and insert the stripped ends of the speaker cords into the terminals.