The sound source
The sound source is the brain of audio equipment. What we all know as CD Radio or multimedia player. It is responsible for reading music, digitally recorded in any medium (CD, USB, SD card, Bluetooth from mobile, iPod, radio, etc.), and converts it into an electrical signal. This electrical signal is the start of the audio chain in stereo. It often goes with the best double-din stereo
Depending on the quality with which the source make this conversion (recorded, to electrical signal data), this initial sound, will have greater or lesser quality. Hence, the quality of this component is one of the keys on a stereo.
Some of the technical specifications that help us discern what source can help us improve the sound quality of origin, will be:
- The S / N ratio (signal to noise): the bigger, better sound quality.
- The bits of the digital to analog conversion: 24-bit DAC recommended for good sound quality.
- The preamplifier output voltage: useful if you are going to use the external amplifier. Recommended 2 to 5 V.
- The possibilities offered by filtering and equalization: recommendable that provides at least equalization and time alignment, to adjust and then adjust the sound to the acoustics of our cabin.
- Do not forget that. Also, each manufacturer tends to give a touch of itself to its sound, “color” so it would always be advisable to hear several sources before opting for one or the other because here we enter a subtle issue likes. Failing that, we can always let us advise by a professional installer or an experienced amateur.