51.   The changes should be so delicate that the audience is not aware of an audio system.

52.   The cradle connects to any audio system through a standard cable.

53.   The headphones, which also connect to home audio systems, televisions and VCRs, provide a solid sound with good deep bass capacity.

54.   The first XM units are priced similarly to replacement audio systems, so prices vary based on the quality of the system you buy.

55.   The GLS adds cruise control, an upgraded audio system, a split folding rear seat and a rear center armrest with a beverage holder and storage bin.

56.   The Monsoon audio system was a cinch to use, and I like the fact they stuck with a simple turning knob to go looking for a radio station.

57.   The Montreal, Quebec-based software maker said sales of its digital image and audio systems had lagged expectations.

58.   The most noticeable change is that the audio system now resides in a more handy place, above the climate controls.

59.   The new DVD players will reproduce multichannel music, for people with multichannel audio systems.

60.   The Montreal-based software maker said sales of its digital image and audio systems had lagged expectations.