Sony Sports Walkman Radio Cassette Player (140-1221) Using AVLS Faxback Doc. # 19972 AVLS (Automatic Volume Limiter System) The AVLS switch allow you to limit the maximum volume of your Walkman personal stereo without degrading the sound quality. When the AVLS switch is set to ON (around 85 dB, the volume will be kept at a moderate level without the degradation of the sound quality, even if you attempt to turn the volume up higher. When the AVLS switch is set to ON, the playback sound may be distorted or unstable according to the music (especially bass boosted part). If this happens, turn down the volume. When the AVLS switch is turned off, you will be able to enjoy the full volume capability of your Walkman personal stereo. (SP/br-2/23/96)