Use for optimal quality for stereo content. Frequency response: 16 kHz (Broadcast quality).

Use for optimal quality for mono content. Frequency response: 20 kHz (CD Quality).

Use for stereo content over ISDN connections. Frequency response: 8 kHz.

Use for general mono content over ISDN connections. Frequency response: 11 kHz.

Use for general stereo content. Frequency response: 4.0 kHz.

Use for instrumental, classical and other music needing the widest frequency response. Frequency response: 5.5 kHz.

Use for musical selections that include snare drums, cymbals, and vocals. Frequency response: 4.7 kHz.

Use to optimize speech over 28.8 kbps modems. Frequency response: 4.0kHz.