Biamplification enables a bassist to use a crossover circuit to split their bass signal into two: a low frequency signal and a high frequency signal, and then route the low and high frequencies into two power amplifiers, each of which send their powered signal to different speaker enclosures. One power amp (usually of higher power) handles the low frequencies, which are sent the larger drivers (at lower frequencies), and a less powerful amp amplifies the high frequencies, which are sent to the horn. For bass players seeking a pure, transparent sound, biamplification may produce a "cleaner" sound. For bass players in hard rock or heavy metal who are using an overdriven sound, biamplification may be safer for the horn or tweeter; while a clipped, distorted signal can be handled by a heavy-duty woofer, the same clipped signal will come much closer to damaging a horn driver or a tweeter. Biamping allows a bassist to have the "dirty" overdriven sound through their woofer(s) while keeping the signal sent to the horn clean, thus protecting the horn. At the high onstage volume levels used in large rock and metal concerts, a powerful, overdriven bass signal poses a higher risk of horn damage in non-biamped systems.