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.
Although you may be nervous about installing speakers in your car, its actually a pretty simple process! 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 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. If these frequencies arent directed properly, then speakers will try to play sounds they arent meant to play.
Every speaker system needs a crossover of some type. Component speaker sets come with separate outboard crossovers, many with tweeter level selectors. Every full-range, coaxial speaker — with its tweeter mounted in front of the woofer cone — already has a tiny crossover network built into it somewhere.
Tweeters are used to produce high-pitched sounds like:Many high pitched vocal frequencies, like feminine voices.High-pitched instruments like chimes, electric guitar notes, cymbals, synthetic keyboard sounds, some drum effects, and more.Feb 26, 2021