Heres the short answer: You cannot use tweeters on a monoblock (bass-only) amp or a subwoofer output channel using a low-pass crossover. You can use tweeters with unused amplifier outputs (channels) that are full-range.
All you have to do is mount a base cup on or underneath an existing speaker grille, place your tweeter inside the base cup, then wire it to your cars stereo crossover.
Every speaker system needs a crossover of some type. In an active sound system each driver (tweeter, woofer, sub) has its own channel of amplification.
Why Do You Need A Crossover? Every audio system, including the one in your car, needs a crossover to direct sound to the correct driver. Tweeters, woofers and subs should get high, mid and low frequencies respectively. Every full-range speaker has a crossover network inside.
Both a tweeter and a subwoofer can be hooked up to the same amp. However, the sound quality will be lessened unless a passive crossover is used.
Basically, youll want an amp with good sound quality that can give a decent amount of power. For most applications, I recommend 50W RMS per channel minimum. Youll also want the ability to block distortion-causing bass by using high-pass crossovers on your tweeters or midrange speakers.
Both a tweeter and a subwoofer can be hooked up to the same amp. However, the sound quality will be lessened unless a passive crossover is used.
Tweeters arent just passive components in your cars speakers. Theyre essential parts in most full-range speaker systems, including those used outside of vehicles. Tweeters are utilized in conjunction with other speaker types, such as woofers, that produce high-quality and wide-ranging sounds in conjunction.
Many people think you can wire a tweeter directly to a speaker and that assumption is partially correct. Youll also need a frequency crossover to complete the installation and prevent damage to the tweeter because its not meant to receive the same amount of power as the speaker or woofer.
Tweeters allow you to pick up the highs that get drowned out/highly distorted out by all that bass. If you have none, and a system that powerful, it would be a good idea to get a set.
The best location for installing the tweeters is at your cars dashboard, facing towards the center of the passenger seat and the driver seat. It helps to make the sound of both tweeters reach the ears of the user at the same time providing an ecstatic experience.