This manual explains how to safely install and operate the Yamaha YST‑SW90/160 active superwoofer. It covers safety precautions, recommended placement, wiring methods, control functions and routine maintenance.
It also includes a troubleshooting guide, specifications of the unit and warranty information to help owners keep the system performing optimally. This manual is written in Japanese.
| Frequency response | 23 Hz – 170 Hz (YST‑SW90), 20 Hz – 160 Hz (YST‑SW160) |
|---|---|
| Rated voltage | AC 100 V, 50/60 Hz |
| Power consumption | 65 W (YST‑SW90), 85 W (YST‑SW160) |
| Weight | 14 kg (YST‑SW90), 20 kg (YST‑SW160) |
Check that the power plug is fully inserted; if the plug is not connected properly, re‑insert it.
Verify that the volume knob is turned up and that the speaker cables are correctly connected.
Adjust the High‑Cut knob, switch the phase selector if needed, and ensure the unit is placed away from resonant surfaces.