Hola,
las medidas de altavoces y características del equipo básico (Business o Professional) son:
The "base" audio system has been around since the early days, although it only made it to the US in 2010.
It uses four channels of deck power (yes, that's right, good old 50Wx4 when lightning strikes, 18Wx4 if you're charitable, and 12Wx4 if you do the actual 12V math into 4 ohms and 1% THD).
The front channels drive:
- 6.5" woofers underseat in 8" frames and molded plastic enclosures. The underseat enclosures are identical for all systems. There is uncertainty regarding whether the duct connecting the enclosure to another chamber in the frame is actually a tuned port, or simply a funny-shaped sealed box. The woofer is not crossover-filtered. The only things taking mids and highs out of the audible output are the driver's own mechanical rolloff, and the acoustic filter formed by the seat and your rear end.
-4" mids in the door. These have a capacitor on them, acting as a high-pass crossover filter and also making the two-speakers-in-parallel a load the deck can handle.
The signal is heavily equalized to the front speakers, and has a subsonic filter around 40 hertz.
The rear channels drive only a pair of 4" mids in the back. This channel is high-pass crossover filtered around 160 Hertz, so connecting a subwoofer to it is a disappointing experience. It is also heavily equalized.
There is a low-current-output remote turn-on present with base audio systems, but it's not controlled by the radio play state. It turns on when the doors are unlocked and stays on for a while after ignition is turned off.
Llega poca potencia, por lo que si no quieres amplificar detrás te toca poner altavoces de poca chicha (40W max o aún menos) y mucha sensibilidad (91-92dB).
He hecho mis probaturas con varios altavoces coaxiales básicos y casi ni se oyen. Al final puse unos Hertz de 4" EMV 100 creo para rellenar medios, y los tuve que amplificar porque llevo un kit delante que "anulaba" los altavoces de la bandeja. Por cierto son de 1 sola vía.
En las puertas ni lo intentes, llevan una capacitancia y cualquier alternativa en coaxial suena como una patata, aún probando condensadores y resistencias de distintos valores.