FYI, folks were commenting on the bass and dimension control positions and resultant impact. This from the manual FWIW:
- BASS eq: Used to increase or decrease the bass or low frequency performance. In the 12:00 position, the EQ is in the null position or there is no effect. Turning the eq clockwise can increase the bass up to 9 db. Turning the eq from the null position counter clockwise will reduce the bass up to 5 dB.
- Dimension control: This is the business end of the unit. In the 12:00 position, the Dimension effect is in the null position or there is no effect. Turning the Dimension control clockwise from the null position will increase the panorama effect or give a wider dispersion of the sound. Turning the Dimension control from the null position counter clockwise will reduce the panorama effect or focus the image. Set the dimension control to the position you prefer.