The Yamaha AX-930 and AX-730 are Active Servo Processing amplifiers designed to work with specific speaker systems. The manual explains the differences between these two models, noting that the AX-930 includes a HIGH FILTER switch and MID control knob which are absent on the AX-730.
| Frequency Response | 8 Hz ~ 20 kHz |
|---|
This unit functions as an Active Servo Processing Amplifier that can also operate as an ordinary amplifier if the specific cartridge is not connected.
The unit supports AC voltages of 110-120 or 220-240 at a frequency of 50/60 Hz.
You must strip about 1 cm (0.39 in.) of insulating material from the ends of the speaker wires.