Talk radio broadcasts can be greatly affected by microphone selection, or by the boosting of low frequencies by some radio stations—done in an effort to improve the way speech sounds when it comes through a conventional radio. With high-quality audio products, this can result in sound that is unnatural or bass heavy. Your system is equipped with talk radio mode, which automatically adjusts to compensate for artificially boosted low frequencies. So what you hear sounds more natural.
On your remote, press PLAY MODE twice while the radio is playing to turn talk radio mode on or off. When it’s on, “talk radio- on” is displayed; and when it’s off, "talk radio– off" is displayed.