The new generation of mini- and micro hi-fi systems have become an essential ally for those who want to enjoy quality audio without spending a lot of money or don't have a lot of space but want to get the most out of the equipment. For this reason, these systems simplify the traditional modular elements of a stereo system: a CD player, cassette player, amplifier, radio receiver and speakers. To all this we must one of their main features: diverse, attractive designs, which allows today's models to fit in perfectly in anywhere in the house.
 
Although these systems are relatively recent, they have had to adapt to new times in which Audio V�deo is more and more important to consumers. Indeed, the most complete models feature a DVD player for viewing movies on TV, a multichannel amplifier that distributes digital sound among the seven speakers that these systems tend to have: two in the front, two on the side, a central one for dialogue and one specifically for low sounds. 

Features that are musts
These systems have all kinds of features that make them convenient, practical and easy to use. The main ones are:
- Compatibility with CD-R/RW and MP3 formats. Lets the CD play audio disks recorded on a PC and those that have MP3 music files.
- Radio programming. Memorizes the radio frequency chosen by the user, which makes searches for stations easier when the system is turned on. The maximum number of stations is around 30. 
- Equalizer. Allows the listener to the adjust the sound to his or her taste. The minimum required includes low, medium and high notes. Some systems have pre-settings that adapt to different kinds of music, such as rock, classical or jazz. 
- Surround sound system. The goal is to have two speakers simulate the all-around sound of a movie theater. This is convenient if you are going to use the hi fi to back up the sound of a TV set. 
- Clock with timer funtion. Allows you to connect and disconnect the system at a pre-set time. You can also record a radio program. 
- RDS (Radio Digital System). This is a radio reception system that lets the device show different kinds of information on the radio dial: name of the station, radio text and traffic conditions.
 - Low-note compensation circuits. They have different names such as Super Bass Sound, Bass-Boost or Power Surround and their job is to make up for the problems that small speakers have producing low notes.